Uses of Class java.io.IOException (Java 2 Platform SE v1.4.2) - Java 2 SDK v1.4.2, Java 2 SDK 英文文档

Uses of IOException in java.applet

 

Methods in java.applet that throw IOException
void	AppletContext.setStream(String key, InputStream stream)           Associates the specified stream with the specified key in this applet context.

 

Uses of IOException in java.awt

 

Methods in java.awt that throw IOException
protected  void	AWTEventMulticaster.saveInternal(ObjectOutputStream s, String k)
protected static void	AWTEventMulticaster.save(ObjectOutputStream s, String k, EventListener l)
static Font	Font.createFont(int fontFormat, InputStream fontStream)           Returns a new Font with the specified font type and input data.

 

Uses of IOException in java.awt.color

 

Methods in java.awt.color that throw IOException
static ICC_Profile	ICC_Profile.getInstance(String fileName)           Constructs an ICC_Profile corresponding to the data in a file.
static ICC_Profile	ICC_Profile.getInstance(InputStream s)           Constructs an ICC_Profile corresponding to the data in an InputStream.
void	ICC_Profile.write(String fileName)           Write this ICC_Profile to a file.
void	ICC_Profile.write(OutputStream s)           Write this ICC_Profile to an OutputStream.

 

Uses of IOException in java.awt.datatransfer

 

Methods in java.awt.datatransfer that throw IOException
Object	StringSelection.getTransferData(DataFlavor flavor)           Returns the Transferable's data in the requested DataFlavor if possible.
Object	Transferable.getTransferData(DataFlavor flavor)           Returns an object which represents the data to be transferred.
Reader	DataFlavor.getReaderForText(Transferable transferable)           Gets a Reader for a text flavor, decoded, if necessary, for the expected charset (encoding).
void	DataFlavor.writeExternal(ObjectOutput os)           Serializes this DataFlavor.
void	DataFlavor.readExternal(ObjectInput is)           Restores this DataFlavor from a Serialized state.

 

Uses of IOException in java.awt.dnd

 

Methods in java.awt.dnd that throw IOException
Object	DropTargetContext.TransferableProxy.getTransferData(DataFlavor df)           Returns an object which represents the data provided by the encapsulated transferable for the requested data flavor.

 

Uses of IOException in java.awt.print

 

Methods in java.awt.print that return IOException
IOException	PrinterIOException.getIOException()           Returns the IOException that terminated the print job.

 

Constructors in java.awt.print with parameters of type IOException

PrinterIOException(IOException exception)           Constructs a new PrinterIOException with the string representation of the specified IOException.

 

Uses of IOException in java.beans

 

Methods in java.beans that throw IOException
static Object	Beans.instantiate(ClassLoader cls, String beanName)            Instantiate a JavaBean.
static Object	Beans.instantiate(ClassLoader cls, String beanName, BeanContext beanContext)            Instantiate a JavaBean.
static Object	Beans.instantiate(ClassLoader cls, String beanName, BeanContext beanContext, AppletInitializer initializer)           Instantiate a bean.

 

Uses of IOException in java.beans.beancontext

 

Methods in java.beans.beancontext that throw IOException
protected  void	BeanContextServicesSupport.bcsPreSerializationHook(ObjectOutputStream oos)           called from BeanContextSupport writeObject before it serializes the children ...
protected  void	BeanContextServicesSupport.bcsPreDeserializationHook(ObjectInputStream ois)           called from BeanContextSupport readObject before it deserializes the children ...
Object	BeanContextSupport.instantiateChild(String beanName)            The instantiateChild method is a convenience hook in BeanContext to simplify the task of instantiating a Bean, nested, into a BeanContext.
protected  void	BeanContextSupport.bcsPreSerializationHook(ObjectOutputStream oos)           called by writeObject after defaultWriteObject() but prior to serialization of currently serializable children.
protected  void	BeanContextSupport.bcsPreDeserializationHook(ObjectInputStream ois)           called by readObject after defaultReadObject() but prior to deserialization of any children.
protected  void	BeanContextSupport.serialize(ObjectOutputStream oos, Collection coll)           Used by writeObject to serialize a Collection.
protected  void	BeanContextSupport.deserialize(ObjectInputStream ois, Collection coll)           used by readObject to deserialize a collection.
void	BeanContextSupport.writeChildren(ObjectOutputStream oos)           Used to serialize all children of this BeanContext.
void	BeanContextSupport.readChildren(ObjectInputStream ois)           When an instance of this class is used as a delegate for the implementation of the BeanContext protocols (and its subprotocols) there exists a 'chicken and egg' problem during deserialization
Object	BeanContext.instantiateChild(String beanName)           Instantiate the javaBean named as a child of this BeanContext.

 

Uses of IOException in java.io

 

Subclasses of IOException in java.io
class	CharConversionException           Base class for character conversion exceptions.
class	EOFException           Signals that an end of file or end of stream has been reached unexpectedly during input.
class	FileNotFoundException           Signals that an attempt to open the file denoted by a specified pathname has failed.
class	InterruptedIOException           Signals that an I/O operation has been interrupted.
class	InvalidClassException           Thrown when the Serialization runtime detects one of the following problems with a Class.
class	InvalidObjectException           Indicates that one or more deserialized objects failed validation tests.
class	NotActiveException           Thrown when serialization or deserialization is not active.
class	NotSerializableException           Thrown when an instance is required to have a Serializable interface.
class	ObjectStreamException           Superclass of all exceptions specific to Object Stream classes.
class	OptionalDataException           Exception indicating the failure of an object read operation due to unread primitive data, or the end of data belonging to a serialized object in the stream.
class	StreamCorruptedException           Thrown when control information that was read from an object stream violates internal consistency checks.
class	SyncFailedException           Signals that a sync operation has failed.
class	UnsupportedEncodingException           The Character Encoding is not supported.
class	UTFDataFormatException           Signals that a malformed UTF-8 string has been read in a data input stream or by any class that implements the data input interface.
class	WriteAbortedException           Signals that one of the ObjectStreamExceptions was thrown during a write operation.

 

Methods in java.io that throw IOException
void	StringWriter.close()           Closing a StringWriter has no effect.
void	FilterWriter.write(int c)           Write a single character.
void	FilterWriter.write(char[] cbuf, int off, int len)           Write a portion of an array of characters.
void	FilterWriter.write(String str, int off, int len)           Write a portion of a string.
void	FilterWriter.flush()           Flush the stream.
void	FilterWriter.close()           Close the stream.
void	CharArrayWriter.writeTo(Writer out)           Writes the contents of the buffer to another character stream.
int	StringReader.read()           Read a single character.
int	StringReader.read(char[] cbuf, int off, int len)           Read characters into a portion of an array.
long	StringReader.skip(long ns)           Skip characters.
boolean	StringReader.ready()           Tell whether this stream is ready to be read.
void	StringReader.mark(int readAheadLimit)           Mark the present position in the stream.
void	StringReader.reset()           Reset the stream to the most recent mark, or to the beginning of the string if it has never been marked.
void	PipedWriter.connect(PipedReader snk)           Connects this piped writer to a receiver.
void	PipedWriter.write(int c)           Writes the specified char to the piped output stream.
void	PipedWriter.write(char[] cbuf, int off, int len)           Writes len characters from the specified character array starting at offset off to this piped output stream.
void	PipedWriter.flush()           Flushes this output stream and forces any buffered output characters to be written out.
void	PipedWriter.close()           Closes this piped output stream and releases any system resources associated with this stream.
void	PipedReader.connect(PipedWriter src)           Causes this piped reader to be connected to the piped writer src.
int	PipedReader.read()           Reads the next character of data from this piped stream.
int	PipedReader.read(char[] cbuf, int off, int len)           Reads up to len characters of data from this piped stream into an array of characters.
boolean	PipedReader.ready()           Tell whether this stream is ready to be read.
void	PipedReader.close()           Closes this piped stream and releases any system resources associated with the stream.
int	InputStreamReader.read()           Read a single character.
int	InputStreamReader.read(char[] cbuf, int offset, int length)           Read characters into a portion of an array.
boolean	InputStreamReader.ready()           Tell whether this stream is ready to be read.
void	InputStreamReader.close()           Close the stream.
int	PushbackReader.read()           Read a single character.
int	PushbackReader.read(char[] cbuf, int off, int len)           Read characters into a portion of an array.
void	PushbackReader.unread(int c)           Push back a single character.
void	PushbackReader.unread(char[] cbuf, int off, int len)           Push back a portion of an array of characters by copying it to the front of the pushback buffer.
void	PushbackReader.unread(char[] cbuf)           Push back an array of characters by copying it to the front of the pushback buffer.
boolean	PushbackReader.ready()           Tell whether this stream is ready to be read.
void	PushbackReader.mark(int readAheadLimit)           Mark the present position in the stream.
void	PushbackReader.reset()           Reset the stream.
void	PushbackReader.close()           Close the stream.
long	PushbackReader.skip(long n)           Skip characters.
int	FilterReader.read()           Read a single character.
int	FilterReader.read(char[] cbuf, int off, int len)           Read characters into a portion of an array.
long	FilterReader.skip(long n)           Skip characters.
boolean	FilterReader.ready()           Tell whether this stream is ready to be read.
void	FilterReader.mark(int readAheadLimit)           Mark the present position in the stream.
void	FilterReader.reset()           Reset the stream.
void	FilterReader.close()           Close the stream.
int	CharArrayReader.read()           Read a single character.
int	CharArrayReader.read(char[] b, int off, int len)           Read characters into a portion of an array.
long	CharArrayReader.skip(long n)           Skip characters.
boolean	CharArrayReader.ready()           Tell whether this stream is ready to be read.
void	CharArrayReader.mark(int readAheadLimit)           Mark the present position in the stream.
void	CharArrayReader.reset()           Reset the stream to the most recent mark, or to the beginning if it has never been marked.
int	LineNumberReader.read()           Read a single character.
int	LineNumberReader.read(char[] cbuf, int off, int len)           Read characters into a portion of an array.
String	LineNumberReader.readLine()           Read a line of text.
long	LineNumberReader.skip(long n)           Skip characters.
void	LineNumberReader.mark(int readAheadLimit)           Mark the present position in the stream.
void	LineNumberReader.reset()           Reset the stream to the most recent mark.
int	BufferedReader.read()           Read a single character.
int	BufferedReader.read(char[] cbuf, int off, int len)           Read characters into a portion of an array.
String	BufferedReader.readLine()           Read a line of text.
long	BufferedReader.skip(long n)           Skip characters.
boolean	BufferedReader.ready()           Tell whether this stream is ready to be read.
void	BufferedReader.mark(int readAheadLimit)           Mark the present position in the stream.
void	BufferedReader.reset()           Reset the stream to the most recent mark.
void	BufferedReader.close()           Close the stream.
int	StreamTokenizer.nextToken()           Parses the next token from the input stream of this tokenizer.
FileDescriptor	RandomAccessFile.getFD()           Returns the opaque file descriptor object associated with this stream.
int	RandomAccessFile.read()           Reads a byte of data from this file.
int	RandomAccessFile.read(byte[] b, int off, int len)           Reads up to len bytes of data from this file into an array of bytes.
int	RandomAccessFile.read(byte[] b)           Reads up to b.length bytes of data from this file into an array of bytes.
void	RandomAccessFile.readFully(byte[] b)           Reads b.length bytes from this file into the byte array, starting at the current file pointer.
void	RandomAccessFile.readFully(byte[] b, int off, int len)           Reads exactly len bytes from this file into the byte array, starting at the current file pointer.
int	RandomAccessFile.skipBytes(int n)           Attempts to skip over n bytes of input discarding the skipped bytes.
void	RandomAccessFile.write(int b)           Writes the specified byte to this file.
void	RandomAccessFile.write(byte[] b)           Writes b.length bytes from the specified byte array to this file, starting at the current file pointer.
void	RandomAccessFile.write(byte[] b, int off, int len)           Writes len bytes from the specified byte array starting at offset off to this file.
long	RandomAccessFile.getFilePointer()           Returns the current offset in this file.
void	RandomAccessFile.seek(long pos)           Sets the file-pointer offset, measured from the beginning of this file, at which the next read or write occurs.
long	RandomAccessFile.length()           Returns the length of this file.
void	RandomAccessFile.setLength(long newLength)           Sets the length of this file.
void	RandomAccessFile.close()           Closes this random access file stream and releases any system resources associated with the stream.
boolean	RandomAccessFile.readBoolean()           Reads a boolean from this file.
byte	RandomAccessFile.readByte()           Reads a signed eight-bit value from this file.
int	RandomAccessFile.readUnsignedByte()           Reads an unsigned eight-bit number from this file.
short	RandomAccessFile.readShort()           Reads a signed 16-bit number from this file.
int	RandomAccessFile.readUnsignedShort()           Reads an unsigned 16-bit number from this file.
char	RandomAccessFile.readChar()           Reads a Unicode character from this file.
int	RandomAccessFile.readInt()           Reads a signed 32-bit integer from this file.
long	RandomAccessFile.readLong()           Reads a signed 64-bit integer from this file.
float	RandomAccessFile.readFloat()           Reads a float from this file.
double	RandomAccessFile.readDouble()           Reads a double from this file.
String	RandomAccessFile.readLine()           Reads the next line of text from this file.
String	RandomAccessFile.readUTF()           Reads in a string from this file.
void	RandomAccessFile.writeBoolean(boolean v)           Writes a boolean to the file as a one-byte value.
void	RandomAccessFile.writeByte(int v)           Writes a byte to the file as a one-byte value.
void	RandomAccessFile.writeShort(int v)           Writes a short to the file as two bytes, high byte first.
void	RandomAccessFile.writeChar(int v)           Writes a char to the file as a two-byte value, high byte first.
void	RandomAccessFile.writeInt(int v)           Writes an int to the file as four bytes, high byte first.
void	RandomAccessFile.writeLong(long v)           Writes a long to the file as eight bytes, high byte first.
void	RandomAccessFile.writeFloat(float v)           Converts the float argument to an int using the floatToIntBits method in class Float, and then writes that int value to the file as a four-byte quantity, high byte first.
void	RandomAccessFile.writeDouble(double v)           Converts the double argument to a long using the doubleToLongBits method in class Double, and then writes that long value to the file as an eight-byte quantity, high byte first.
void	RandomAccessFile.writeBytes(String s)           Writes the string to the file as a sequence of bytes.
void	RandomAccessFile.writeChars(String s)           Writes a string to the file as a sequence of characters.
void	RandomAccessFile.writeUTF(String str)           Writes a string to the file using UTF-8 encoding in a machine-independent manner.
void	BufferedOutputStream.write(int b)           Writes the specified byte to this buffered output stream.
void	BufferedOutputStream.write(byte[] b, int off, int len)           Writes len bytes from the specified byte array starting at offset off to this buffered output stream.
void	BufferedOutputStream.flush()           Flushes this buffered output stream.
void	FileOutputStream.write(int b)           Writes the specified byte to this file output stream.
void	FileOutputStream.write(byte[] b)           Writes b.length bytes from the specified byte array to this file output stream.
void	FileOutputStream.write(byte[] b, int off, int len)           Writes len bytes from the specified byte array starting at offset off to this file output stream.
void	FileOutputStream.close()           Closes this file output stream and releases any system resources associated with this stream.
FileDescriptor	FileOutputStream.getFD()           Returns the file descriptor associated with this stream.
protected  void	FileOutputStream.finalize()           Cleans up the connection to the file, and ensures that the close method of this file output stream is called when there are no more references to this stream.
int	LineNumberInputStream.read()           Deprecated. Reads the next byte of data from this input stream.
int	LineNumberInputStream.read(byte[] b, int off, int len)           Deprecated. Reads up to len bytes of data from this input stream into an array of bytes.
long	LineNumberInputStream.skip(long n)           Deprecated. Skips over and discards n bytes of data from this input stream.
int	LineNumberInputStream.available()           Deprecated. Returns the number of bytes that can be read from this input stream without blocking.
void	LineNumberInputStream.reset()           Deprecated. Repositions this stream to the position at the time the mark method was last called on this input stream.
int	SequenceInputStream.available()           Returns the number of bytes available on the current stream.
int	SequenceInputStream.read()           Reads the next byte of data from this input stream.
int	SequenceInputStream.read(byte[] b, int off, int len)           Reads up to len bytes of data from this input stream into an array of bytes.
void	SequenceInputStream.close()           Closes this input stream and releases any system resources associated with the stream.
int	PushbackInputStream.read()           Reads the next byte of data from this input stream.
int	PushbackInputStream.read(byte[] b, int off, int len)           Reads up to len bytes of data from this input stream into an array of bytes.
void	PushbackInputStream.unread(int b)           Pushes back a byte by copying it to the front of the pushback buffer.
void	PushbackInputStream.unread(byte[] b, int off, int len)           Pushes back a portion of an array of bytes by copying it to the front of the pushback buffer.
void	PushbackInputStream.unread(byte[] b)           Pushes back an array of bytes by copying it to the front of the pushback buffer.
int	PushbackInputStream.available()           Returns the number of bytes that can be read from this input stream without blocking.
long	PushbackInputStream.skip(long n)           Skips over and discards n bytes of data from this input stream.
void	PushbackInputStream.close()           Closes this input stream and releases any system resources associated with the stream.
void	ByteArrayInputStream.close()           Closing a ByteArrayInputStream has no effect.
int	BufferedInputStream.read()           See the general contract of the read method of InputStream.
int	BufferedInputStream.read(byte[] b, int off, int len)           Reads bytes from this byte-input stream into the specified byte array, starting at the given offset.
long	BufferedInputStream.skip(long n)           See the general contract of the skip method of InputStream.
int	BufferedInputStream.available()           Returns the number of bytes that can be read from this input stream without blocking.
void	BufferedInputStream.reset()           See the general contract of the reset method of InputStream.
void	BufferedInputStream.close()           Closes this input stream and releases any system resources associated with the stream.
int	FileInputStream.read()           Reads a byte of data from this input stream.
int	FileInputStream.read(byte[] b)           Reads up to b.length bytes of data from this input stream into an array of bytes.
int	FileInputStream.read(byte[] b, int off, int len)           Reads up to len bytes of data from this input stream into an array of bytes.
long	FileInputStream.skip(long n)           Skips over and discards n bytes of data from the input stream.
int	FileInputStream.available()           Returns the number of bytes that can be read from this file input stream without blocking.
void	FileInputStream.close()           Closes this file input stream and releases any system resources associated with the stream.
FileDescriptor	FileInputStream.getFD()           Returns the FileDescriptor object that represents the connection to the actual file in the file system being used by this FileInputStream.
protected  void	FileInputStream.finalize()           Ensures that the close method of this file input stream is called when there are no more references to it.
void	PipedOutputStream.connect(PipedInputStream snk)           Connects this piped output stream to a receiver.
void	PipedOutputStream.write(int b)           Writes the specified byte to the piped output stream.
void	PipedOutputStream.write(byte[] b, int off, int len)           Writes len bytes from the specified byte array starting at offset off to this piped output stream.
void	PipedOutputStream.flush()           Flushes this output stream and forces any buffered output bytes to be written out.
void	PipedOutputStream.close()           Closes this piped output stream and releases any system resources associated with this stream.
void	PipedInputStream.connect(PipedOutputStream src)           Causes this piped input stream to be connected to the piped output stream src.
protected  void	PipedInputStream.receive(int b)           Receives a byte of data.
int	PipedInputStream.read()           Reads the next byte of data from this piped input stream.
int	PipedInputStream.read(byte[] b, int off, int len)           Reads up to len bytes of data from this piped input stream into an array of bytes.
int	PipedInputStream.available()           Returns the number of bytes that can be read from this input stream without blocking.
void	PipedInputStream.close()           Closes this piped input stream and releases any system resources associated with the stream.
int	Reader.read()           Read a single character.
int	Reader.read(char[] cbuf)           Read characters into an array.
abstract  int	Reader.read(char[] cbuf, int off, int len)           Read characters into a portion of an array.
long	Reader.skip(long n)           Skip characters.
boolean	Reader.ready()           Tell whether this stream is ready to be read.
void	Reader.mark(int readAheadLimit)           Mark the present position in the stream.
void	Reader.reset()           Reset the stream.
abstract  void	Reader.close()           Close the stream.
void	ByteArrayOutputStream.writeTo(OutputStream out)           Writes the complete contents of this byte array output stream to the specified output stream argument, as if by calling the output stream's write method using out.write(buf, 0, count).
void	ByteArrayOutputStream.close()           Closing a ByteArrayOutputStream has no effect.
int	DataInputStream.read(byte[] b)           Reads some number of bytes from the contained input stream and stores them into the buffer array b.
int	DataInputStream.read(byte[] b, int off, int len)           Reads up to len bytes of data from the contained input stream into an array of bytes.
void	DataInputStream.readFully(byte[] b)           See the general contract of the readFully method of DataInput.
void	DataInputStream.readFully(byte[] b, int off, int len)           See the general contract of the readFully method of DataInput.
int	DataInputStream.skipBytes(int n)           See the general contract of the skipBytes method of DataInput.
boolean	DataInputStream.readBoolean()           See the general contract of the readBoolean method of DataInput.
byte	DataInputStream.readByte()           See the general contract of the readByte method of DataInput.
int	DataInputStream.readUnsignedByte()           See the general contract of the readUnsignedByte method of DataInput.
short	DataInputStream.readShort()           See the general contract of the readShort method of DataInput.
int	DataInputStream.readUnsignedShort()           See the general contract of the readUnsignedShort method of DataInput.
char	DataInputStream.readChar()           See the general contract of the readChar method of DataInput.
int	DataInputStream.readInt()           See the general contract of the readInt method of DataInput.
long	DataInputStream.readLong()           See the general contract of the readLong method of DataInput.
float	DataInputStream.readFloat()           See the general contract of the readFloat method of DataInput.
double	DataInputStream.readDouble()           See the general contract of the readDouble method of DataInput.
String	DataInputStream.readLine()           Deprecated. This method does not properly convert bytes to characters. As of JDK 1.1, the preferred way to read lines of text is via the BufferedReader.readLine() method. Programs that use the DataInputStream class to read lines can be converted to use the BufferedReader class by replacing code of the form: DataInputStream d = new DataInputStream(in); with: BufferedReader d = new BufferedReader(new InputStreamReader(in));
String	DataInputStream.readUTF()           See the general contract of the readUTF method of DataInput.
static String	DataInputStream.readUTF(DataInput in)           Reads from the stream in a representation of a Unicode character string encoded in Java modified UTF-8 format; this string of characters is then returned as a String.
int	FilterInputStream.read()           Reads the next byte of data from this input stream.
int	FilterInputStream.read(byte[] b)           Reads up to byte.length bytes of data from this input stream into an array of bytes.
int	FilterInputStream.read(byte[] b, int off, int len)           Reads up to len bytes of data from this input stream into an array of bytes.
long	FilterInputStream.skip(long n)           Skips over and discards n bytes of data from the input stream.
int	FilterInputStream.available()           Returns the number of bytes that can be read from this input stream without blocking.
void	FilterInputStream.close()           Closes this input stream and releases any system resources associated with the stream.
void	FilterInputStream.reset()           Repositions this stream to the position at the time the mark method was last called on this input stream.
void	DataOutputStream.write(int b)           Writes the specified byte (the low eight bits of the argument b) to the underlying output stream.
void	DataOutputStream.write(byte[] b, int off, int len)           Writes len bytes from the specified byte array starting at offset off to the underlying output stream.
void	DataOutputStream.flush()           Flushes this data output stream.
void	DataOutputStream.writeBoolean(boolean v)           Writes a boolean to the underlying output stream as a 1-byte value.
void	DataOutputStream.writeByte(int v)           Writes out a byte to the underlying output stream as a 1-byte value.
void	DataOutputStream.writeShort(int v)           Writes a short to the underlying output stream as two bytes, high byte first.
void	DataOutputStream.writeChar(int v)           Writes a char to the underlying output stream as a 2-byte value, high byte first.
void	DataOutputStream.writeInt(int v)           Writes an int to the underlying output stream as four bytes, high byte first.
void	DataOutputStream.writeLong(long v)           Writes a long to the underlying output stream as eight bytes, high byte first.
void	DataOutputStream.writeFloat(float v)           Converts the float argument to an int using the floatToIntBits method in class Float, and then writes that int value to the underlying output stream as a 4-byte quantity, high byte first.
void	DataOutputStream.writeDouble(double v)           Converts the double argument to a long using the doubleToLongBits method in class Double, and then writes that long value to the underlying output stream as an 8-byte quantity, high byte first.
void	DataOutputStream.writeBytes(String s)           Writes out the string to the underlying output stream as a sequence of bytes.
void	DataOutputStream.writeChars(String s)           Writes a string to the underlying output stream as a sequence of characters.
void	DataOutputStream.writeUTF(String str)           Writes a string to the underlying output stream using Java modified UTF-8 encoding in a machine-independent manner.
void	Externalizable.writeExternal(ObjectOutput out)           The object implements the writeExternal method to save its contents by calling the methods of DataOutput for its primitive values or calling the writeObject method of ObjectOutput for objects, strings, and arrays.
void	Externalizable.readExternal(ObjectInput in)           The object implements the readExternal method to restore its contents by calling the methods of DataInput for primitive types and readObject for objects, strings and arrays.
void	OutputStreamWriter.write(int c)           Write a single character.
void	OutputStreamWriter.write(char[] cbuf, int off, int len)           Write a portion of an array of characters.
void	OutputStreamWriter.write(String str, int off, int len)           Write a portion of a string.
void	OutputStreamWriter.flush()           Flush the stream.
void	OutputStreamWriter.close()           Close the stream.
void	BufferedWriter.write(int c)           Write a single character.
void	BufferedWriter.write(char[] cbuf, int off, int len)           Write a portion of an array of characters.
void	BufferedWriter.write(String s, int off, int len)           Write a portion of a String.
void	BufferedWriter.newLine()           Write a line separator.
void	BufferedWriter.flush()           Flush the stream.
void	BufferedWriter.close()           Close the stream.
void	DataInput.readFully(byte[] b)           Reads some bytes from an input stream and stores them into the buffer array b.
void	DataInput.readFully(byte[] b, int off, int len)           Reads len bytes from an input stream.
int	DataInput.skipBytes(int n)           Makes an attempt to skip over n bytes of data from the input stream, discarding the skipped bytes.
boolean	DataInput.readBoolean()           Reads one input byte and returns true if that byte is nonzero, false if that byte is zero.
byte	DataInput.readByte()           Reads and returns one input byte.
int	DataInput.readUnsignedByte()           Reads one input byte, zero-extends it to type int, and returns the result, which is therefore in the range 0 through 255.
short	DataInput.readShort()           Reads two input bytes and returns a short value.
int	DataInput.readUnsignedShort()           Reads two input bytes and returns an int value in the range 0 through 65535.
char	DataInput.readChar()           Reads an input char and returns the char value.
int	DataInput.readInt()           Reads four input bytes and returns an int value.
long	DataInput.readLong()           Reads eight input bytes and returns a long value.
float	DataInput.readFloat()           Reads four input bytes and returns a float value.
double	DataInput.readDouble()           Reads eight input bytes and returns a double value.
String	DataInput.readLine()           Reads the next line of text from the input stream.
String	DataInput.readUTF()           Reads in a string that has been encoded using a modified UTF-8 format.
Object	ObjectInput.readObject()           Read and return an object.
int	ObjectInput.read()           Reads a byte of data.
int	ObjectInput.read(byte[] b)           Reads into an array of bytes.
int	ObjectInput.read(byte[] b, int off, int len)           Reads into an array of bytes.
long	ObjectInput.skip(long n)           Skips n bytes of input.
int	ObjectInput.available()           Returns the number of bytes that can be read without blocking.
void	ObjectInput.close()           Closes the input stream.
Object	ObjectInputStream.readObject()           Read an object from the ObjectInputStream.
protected  Object	ObjectInputStream.readObjectOverride()           This method is called by trusted subclasses of ObjectOutputStream that constructed ObjectOutputStream using the protected no-arg constructor.
Object	ObjectInputStream.readUnshared()           Reads an "unshared" object from the ObjectInputStream.
void	ObjectInputStream.defaultReadObject()           Read the non-static and non-transient fields of the current class from this stream.
ObjectInputStream.GetField	ObjectInputStream.readFields()           Reads the persistent fields from the stream and makes them available by name.
protected  Class	ObjectInputStream.resolveClass(ObjectStreamClass desc)           Load the local class equivalent of the specified stream class description.
protected  Class	ObjectInputStream.resolveProxyClass(String[] interfaces)           Returns a proxy class that implements the interfaces named in a proxy class descriptor; subclasses may implement this method to read custom data from the stream along with the descriptors for dynamic proxy classes, allowing them to use an alternate loading mechanism for the interfaces and the proxy class.
protected  Object	ObjectInputStream.resolveObject(Object obj)           This method will allow trusted subclasses of ObjectInputStream to substitute one object for another during deserialization.
protected  void	ObjectInputStream.readStreamHeader()           The readStreamHeader method is provided to allow subclasses to read and verify their own stream headers.
protected  ObjectStreamClass	ObjectInputStream.readClassDescriptor()           Read a class descriptor from the serialization stream.
int	ObjectInputStream.read()           Reads a byte of data.
int	ObjectInputStream.read(byte[] buf, int off, int len)           Reads into an array of bytes.
int	ObjectInputStream.available()           Returns the number of bytes that can be read without blocking.
void	ObjectInputStream.close()           Closes the input stream.
boolean	ObjectInputStream.readBoolean()           Reads in a boolean.
byte	ObjectInputStream.readByte()           Reads an 8 bit byte.
int	ObjectInputStream.readUnsignedByte()           Reads an unsigned 8 bit byte.
char	ObjectInputStream.readChar()           Reads a 16 bit char.
short	ObjectInputStream.readShort()           Reads a 16 bit short.
int	ObjectInputStream.readUnsignedShort()           Reads an unsigned 16 bit short.
int	ObjectInputStream.readInt()           Reads a 32 bit int.
long	ObjectInputStream.readLong()           Reads a 64 bit long.
float	ObjectInputStream.readFloat()           Reads a 32 bit float.
double	ObjectInputStream.readDouble()           Reads a 64 bit double.
void	ObjectInputStream.readFully(byte[] buf)           Reads bytes, blocking until all bytes are read.
void	ObjectInputStream.readFully(byte[] buf, int off, int len)           Reads bytes, blocking until all bytes are read.
int	ObjectInputStream.skipBytes(int len)           Skips bytes, block until all bytes are skipped.
String	ObjectInputStream.readLine()           Deprecated. This method does not properly convert bytes to characters. see DataInputStream for the details and alternatives.
String	ObjectInputStream.readUTF()           Reads a UTF format String.
abstract  boolean	ObjectInputStream.GetField.defaulted(String name)           Return true if the named field is defaulted and has no value in this stream.
abstract  boolean	ObjectInputStream.GetField.get(String name, boolean val)           Get the value of the named boolean field from the persistent field.
abstract  byte	ObjectInputStream.GetField.get(String name, byte val)           Get the value of the named byte field from the persistent field.
abstract  char	ObjectInputStream.GetField.get(String name, char val)           Get the value of the named char field from the persistent field.
abstract  short	ObjectInputStream.GetField.get(String name, short val)           Get the value of the named short field from the persistent field.
abstract  int	ObjectInputStream.GetField.get(String name, int val)           Get the value of the named int field from the persistent field.
abstract  long	ObjectInputStream.GetField.get(String name, long val)           Get the value of the named long field from the persistent field.
abstract  float	ObjectInputStream.GetField.get(String name, float val)           Get the value of the named float field from the persistent field.
abstract  double	ObjectInputStream.GetField.get(String name, double val)           Get the value of the named double field from the persistent field.
abstract  Object	ObjectInputStream.GetField.get(String name, Object val)           Get the value of the named Object field from the persistent field.
String	File.getCanonicalPath()           Returns the canonical pathname string of this abstract pathname.
File	File.getCanonicalFile()           Returns the canonical form of this abstract pathname.
boolean	File.createNewFile()           Atomically creates a new, empty file named by this abstract pathname if and only if a file with this name does not yet exist.
static File	File.createTempFile(String prefix, String suffix, File directory)            Creates a new empty file in the specified directory, using the given prefix and suffix strings to generate its name.
static File	File.createTempFile(String prefix, String suffix)           Creates an empty file in the default temporary-file directory, using the given prefix and suffix to generate its name.
void	DataOutput.write(int b)           Writes to the output stream the eight low-order bits of the argument b.
void	DataOutput.write(byte[] b)           Writes to the output stream all the bytes in array b.
void	DataOutput.write(byte[] b, int off, int len)           Writes len bytes from array b, in order, to the output stream.
void	DataOutput.writeBoolean(boolean v)           Writes a boolean value to this output stream.
void	DataOutput.writeByte(int v)           Writes to the output stream the eight low- order bits of the argument v.
void	DataOutput.writeShort(int v)           Writes two bytes to the output stream to represent the value of the argument.
void	DataOutput.writeChar(int v)           Writes a char value, wich is comprised of two bytes, to the output stream.
void	DataOutput.writeInt(int v)           Writes an int value, which is comprised of four bytes, to the output stream.
void	DataOutput.writeLong(long v)           Writes a long value, which is comprised of eight bytes, to the output stream.
void	DataOutput.writeFloat(float v)           Writes a float value, which is comprised of four bytes, to the output stream.
void	DataOutput.writeDouble(double v)           Writes a double value, which is comprised of eight bytes, to the output stream.
void	DataOutput.writeBytes(String s)           Writes a string to the output stream.
void	DataOutput.writeChars(String s)           Writes every character in the string s, to the output stream, in order, two bytes per character.
void	DataOutput.writeUTF(String str)           Writes two bytes of length information to the output stream, followed by the Java modified UTF representation of every character in the string s.
void	ObjectOutput.writeObject(Object obj)           Write an object to the underlying storage or stream.
void	ObjectOutput.write(int b)           Writes a byte.
void	ObjectOutput.write(byte[] b)           Writes an array of bytes.
void	ObjectOutput.write(byte[] b, int off, int len)           Writes a sub array of bytes.
void	ObjectOutput.flush()           Flushes the stream.
void	ObjectOutput.close()           Closes the stream.
void	ObjectOutputStream.useProtocolVersion(int version)           Specify stream protocol version to use when writing the stream.
void	ObjectOutputStream.writeObject(Object obj)           Write the specified object to the ObjectOutputStream.
protected  void	ObjectOutputStream.writeObjectOverride(Object obj)           Method used by subclasses to override the default writeObject method.
void	ObjectOutputStream.writeUnshared(Object obj)           Writes an "unshared" object to the ObjectOutputStream.
void	ObjectOutputStream.defaultWriteObject()           Write the non-static and non-transient fields of the current class to this stream.
ObjectOutputStream.PutField	ObjectOutputStream.putFields()           Retrieve the object used to buffer persistent fields to be written to the stream.
void	ObjectOutputStream.writeFields()           Write the buffered fields to the stream.
void	ObjectOutputStream.reset()           Reset will disregard the state of any objects already written to the stream.
protected  void	ObjectOutputStream.annotateClass(Class cl)           Subclasses may implement this method to allow class data to be stored in the stream.
protected  void	ObjectOutputStream.annotateProxyClass(Class cl)           Subclasses may implement this method to store custom data in the stream along with descriptors for dynamic proxy classes.
protected  Object	ObjectOutputStream.replaceObject(Object obj)           This method will allow trusted subclasses of ObjectOutputStream to substitute one object for another during serialization.
protected  void	ObjectOutputStream.writeStreamHeader()           The writeStreamHeader method is provided so subclasses can append or prepend their own header to the stream.
protected  void	ObjectOutputStream.writeClassDescriptor(ObjectStreamClass desc)           Write the specified class descriptor to the ObjectOutputStream.
void	ObjectOutputStream.write(int val)           Writes a byte.
void	ObjectOutputStream.write(byte[] buf)           Writes an array of bytes.
void	ObjectOutputStream.write(byte[] buf, int off, int len)           Writes a sub array of bytes.
void	ObjectOutputStream.flush()           Flushes the stream.
protected  void	ObjectOutputStream.drain()           Drain any buffered data in ObjectOutputStream.
void	ObjectOutputStream.close()           Closes the stream.
void	ObjectOutputStream.writeBoolean(boolean val)           Writes a boolean.
void	ObjectOutputStream.writeByte(int val)           Writes an 8 bit byte.
void	ObjectOutputStream.writeShort(int val)           Writes a 16 bit short.
void	ObjectOutputStream.writeChar(int val)           Writes a 16 bit char.
void	ObjectOutputStream.writeInt(int val)           Writes a 32 bit int.
void	ObjectOutputStream.writeLong(long val)           Writes a 64 bit long.
void	ObjectOutputStream.writeFloat(float val)           Writes a 32 bit float.
void	ObjectOutputStream.writeDouble(double val)           Writes a 64 bit double.
void	ObjectOutputStream.writeBytes(String str)           Writes a String as a sequence of bytes.
void	ObjectOutputStream.writeChars(String str)           Writes a String as a sequence of chars.
void	ObjectOutputStream.writeUTF(String str)           Primitive data write of this String in UTF format.
abstract  void	ObjectOutputStream.PutField.write(ObjectOutput out)           Deprecated. This method does not write the values contained by this PutField object in a proper format, and may result in corruption of the serialization stream. The correct way to write PutField data is by calling the ObjectOutputStream.writeFields() method.
void	Writer.write(int c)           Write a single character.
void	Writer.write(char[] cbuf)           Write an array of characters.
abstract  void	Writer.write(char[] cbuf, int off, int len)           Write a portion of an array of characters.
void	Writer.write(String str)           Write a string.
void	Writer.write(String str, int off, int len)           Write a portion of a string.
abstract  void	Writer.flush()           Flush the stream.
abstract  void	Writer.close()           Close the stream, flushing it first.
abstract  void	OutputStream.write(int b)           Writes the specified byte to this output stream.
void	OutputStream.write(byte[] b)           Writes b.length bytes from the specified byte array to this output stream.
void	OutputStream.write(byte[] b, int off, int len)           Writes len bytes from the specified byte array starting at offset off to this output stream.
void	OutputStream.flush()           Flushes this output stream and forces any buffered output bytes to be written out.
void	OutputStream.close()           Closes this output stream and releases any system resources associated with this stream.
void	FilterOutputStream.write(int b)           Writes the specified byte to this output stream.
void	FilterOutputStream.write(byte[] b)           Writes b.length bytes to this output stream.
void	FilterOutputStream.write(byte[] b, int off, int len)           Writes len bytes from the specified byte array starting at offset off to this output stream.
void	FilterOutputStream.flush()           Flushes this output stream and forces any buffered output bytes to be written out to the stream.
void	FilterOutputStream.close()           Closes this output stream and releases any system resources associated with the stream.
abstract  int	InputStream.read()           Reads the next byte of data from the input stream.
int	InputStream.read(byte[] b)           Reads some number of bytes from the input stream and stores them into the buffer array b.
int	InputStream.read(byte[] b, int off, int len)           Reads up to len bytes of data from the input stream into an array of bytes.
long	InputStream.skip(long n)           Skips over and discards n bytes of data from this input stream.
int	InputStream.available()           Returns the number of bytes that can be read (or skipped over) from this input stream without blocking by the next caller of a method for this input stream.
void	InputStream.close()           Closes this input stream and releases any system resources associated with the stream.
void	InputStream.reset()           Repositions this stream to the position at the time the mark method was last called on this input stream.

 

Constructors in java.io that throw IOException

FileWriter(String fileName)           Constructs a FileWriter object given a file name.

FileWriter(String fileName, boolean append)           Constructs a FileWriter object given a file name with a boolean indicating whether or not to append the data written.

FileWriter(File file)           Constructs a FileWriter object given a File object.

FileWriter(File file, boolean append)           Constructs a FileWriter object given a File object.

PipedWriter(PipedReader snk)           Creates a piped writer connected to the specified piped reader.

PipedReader(PipedWriter src)           Creates a PipedReader so that it is connected to the piped writer src.

PipedOutputStream(PipedInputStream snk)           Creates a piped output stream connected to the specified piped input stream.

PipedInputStream(PipedOutputStream src)           Creates a PipedInputStream so that it is connected to the piped output stream src.

ObjectInputStream(InputStream in)           Creates an ObjectInputStream that reads from the specified InputStream.

ObjectInputStream()           Provide a way for subclasses that are completely reimplementing ObjectInputStream to not have to allocate private data just used by this implementation of ObjectInputStream.

ObjectOutputStream(OutputStream out)           Creates an ObjectOutputStream that writes to the specified OutputStream.

ObjectOutputStream()           Provide a way for subclasses that are completely reimplementing ObjectOutputStream to not have to allocate private data just used by this implementation of ObjectOutputStream.

 

Uses of IOException in java.lang

 

Methods in java.lang that throw IOException
Process	Runtime.exec(String command)           Executes the specified string command in a separate process.
Process	Runtime.exec(String cmd, String[] envp)           Executes the specified string command in a separate process with the specified environment.
Process	Runtime.exec(String command, String[] envp, File dir)           Executes the specified string command in a separate process with the specified environment and working directory.
Process	Runtime.exec(String[] cmdarray)           Executes the specified command and arguments in a separate process.
Process	Runtime.exec(String[] cmdarray, String[] envp)           Executes the specified command and arguments in a separate process with the specified environment.
Process	Runtime.exec(String[] cmdarray, String[] envp, File dir)           Executes the specified command and arguments in a separate process with the specified environment and working directory.
Enumeration	ClassLoader.getResources(String name)           Finds all the resources with the given name.
protected  Enumeration	ClassLoader.findResources(String name)           Returns an enumeration of URL objects representing all the resources with the given name.
static Enumeration	ClassLoader.getSystemResources(String name)           Finds all resources of the specified name from the search path used to load classes.

 

Uses of IOException in java.net

 

Subclasses of IOException in java.net
class	BindException           Signals that an error occurred while attempting to bind a socket to a local address and port.
class	MalformedURLException           Thrown to indicate that a malformed URL has occurred.
class	NoRouteToHostException           Signals that an error occurred while attempting to connect a socket to a remote address and port.
class	PortUnreachableException           Signals that an ICMP Port Unreachable message has been received on a connected datagram.
class	ProtocolException           Thrown to indicate that there is an error in the underlying protocol, such as a TCP error.
class	SocketException           Thrown to indicate that there is an error in the underlying protocol, such as a TCP error.
class	SocketTimeoutException           Signals that a timeout has occurred on a socket read or accept.
class	UnknownHostException           Thrown to indicate that the IP address of a host could not be determined.
class	UnknownServiceException           Thrown to indicate that an unknown service exception has occurred.

 

Methods in java.net that throw IOException
void	MulticastSocket.setTTL(byte ttl)           Deprecated. use the setTimeToLive method instead, which uses int instead of byte as the type for ttl.
void	MulticastSocket.setTimeToLive(int ttl)           Set the default time-to-live for multicast packets sent out on this MulticastSocket in order to control the scope of the multicasts.
byte	MulticastSocket.getTTL()           Deprecated. use the getTimeToLive method instead, which returns an int instead of a byte.
int	MulticastSocket.getTimeToLive()           Get the default time-to-live for multicast packets sent out on the socket.
void	MulticastSocket.joinGroup(InetAddress mcastaddr)           Joins a multicast group.
void	MulticastSocket.leaveGroup(InetAddress mcastaddr)           Leave a multicast group.
void	MulticastSocket.joinGroup(SocketAddress mcastaddr, NetworkInterface netIf)           Joins the specified multicast group at the specified interface.
void	MulticastSocket.leaveGroup(SocketAddress mcastaddr, NetworkInterface netIf)           Leave a multicast group on a specified local interface.
void	MulticastSocket.send(DatagramPacket p, byte ttl)           Deprecated. Use the following code or its equivalent instead: ...... int ttl = mcastSocket.getTimeToLive(); mcastSocket.setTimeToLive(newttl); mcastSocket.send(p); mcastSocket.setTimeToLive(ttl); ......
void	Socket.connect(SocketAddress endpoint)           Connects this socket to the server.
void	Socket.connect(SocketAddress endpoint, int timeout)           Connects this socket to the server with a specified timeout value.
void	Socket.bind(SocketAddress bindpoint)           Binds the socket to a local address.
InputStream	Socket.getInputStream()           Returns an input stream for this socket.
OutputStream	Socket.getOutputStream()           Returns an output stream for this socket.
void	Socket.sendUrgentData(int data)           Send one byte of urgent data on the socket.
void	Socket.close()           Closes this socket.
void	Socket.shutdownInput()           Places the input stream for this socket at "end of stream".
void	Socket.shutdownOutput()           Disables the output stream for this socket.
static void	Socket.setSocketImplFactory(SocketImplFactory fac)           Sets the client socket implementation factory for the application.
protected abstract  void	SocketImpl.create(boolean stream)           Creates either a stream or a datagram socket.
protected abstract  void	SocketImpl.connect(String host, int port)           Connects this socket to the specified port on the named host.
protected abstract  void	SocketImpl.connect(InetAddress address, int port)           Connects this socket to the specified port number on the specified host.
protected abstract  void	SocketImpl.connect(SocketAddress address, int timeout)           Connects this socket to the specified port number on the specified host.
protected abstract  void	SocketImpl.bind(InetAddress host, int port)           Binds this socket to the specified port number on the specified host.
protected abstract  void	SocketImpl.listen(int backlog)           Sets the maximum queue length for incoming connection indications (a request to connect) to the count argument.
protected abstract  void	SocketImpl.accept(SocketImpl s)           Accepts a connection.
protected abstract  InputStream	SocketImpl.getInputStream()           Returns an input stream for this socket.
protected abstract  OutputStream	SocketImpl.getOutputStream()           Returns an output stream for this socket.
protected abstract  int	SocketImpl.available()           Returns the number of bytes that can be read from this socket without blocking.
protected abstract  void	SocketImpl.close()           Closes this socket.
protected  void	SocketImpl.shutdownInput()           Places the input stream for this socket at "end of stream".
protected  void	SocketImpl.shutdownOutput()           Disables the output stream for this socket.
protected abstract  void	SocketImpl.sendUrgentData(int data)           Send one byte of urgent data on the socket.
void	ServerSocket.bind(SocketAddress endpoint)           Binds the ServerSocket to a specific address (IP address and port number).
void	ServerSocket.bind(SocketAddress endpoint, int backlog)           Binds the ServerSocket to a specific address (IP address and port number).
Socket	ServerSocket.accept()           Listens for a connection to be made to this socket and accepts it.
protected  void	ServerSocket.implAccept(Socket s)           Subclasses of ServerSocket use this method to override accept() to return their own subclass of socket.
void	ServerSocket.close()           Closes this socket.
int	ServerSocket.getSoTimeout()           Retrive setting for SO_TIMEOUT.
static void	ServerSocket.setSocketFactory(SocketImplFactory fac)           Sets the server socket implementation factory for the application.
protected abstract  void	DatagramSocketImpl.send(DatagramPacket p)           Sends a datagram packet.
protected abstract  int	DatagramSocketImpl.peek(InetAddress i)           Peek at the packet to see who it is from.
protected abstract  int	DatagramSocketImpl.peekData(DatagramPacket p)           Peek at the packet to see who it is from.
protected abstract  void	DatagramSocketImpl.receive(DatagramPacket p)           Receive the datagram packet.
protected abstract  void	DatagramSocketImpl.setTTL(byte ttl)           Deprecated. use setTimeToLive instead.
protected abstract  byte	DatagramSocketImpl.getTTL()           Deprecated. use getTimeToLive instead.
protected abstract  void	DatagramSocketImpl.setTimeToLive(int ttl)           Set the TTL (time-to-live) option.
protected abstract  int	DatagramSocketImpl.getTimeToLive()           Retrieve the TTL (time-to-live) option.
protected abstract  void	DatagramSocketImpl.join(InetAddress inetaddr)           Join the multicast group.
protected abstract  void	DatagramSocketImpl.leave(InetAddress inetaddr)           Leave the multicast group.
protected abstract  void	DatagramSocketImpl.joinGroup(SocketAddress mcastaddr, NetworkInterface netIf)           Join the multicast group.
protected abstract  void	DatagramSocketImpl.leaveGroup(SocketAddress mcastaddr, NetworkInterface netIf)           Leave the multicast group.
void	DatagramSocket.send(DatagramPacket p)           Sends a datagram packet from this socket.
void	DatagramSocket.receive(DatagramPacket p)           Receives a datagram packet from this socket.
static void	DatagramSocket.setDatagramSocketImplFactory(DatagramSocketImplFactory fac)           Sets the datagram socket implementation factory for the application.
int	HttpURLConnection.getResponseCode()           Gets the status code from an HTTP response message.
String	HttpURLConnection.getResponseMessage()           Gets the HTTP response message, if any, returned along with the response code from a server.
Permission	HttpURLConnection.getPermission()
abstract  JarFile	JarURLConnection.getJarFile()           Return the JAR file for this connection.
Manifest	JarURLConnection.getManifest()           Returns the Manifest for this connection, or null if none.
JarEntry	JarURLConnection.getJarEntry()           Return the JAR entry object for this connection, if any.
Attributes	JarURLConnection.getAttributes()           Return the Attributes object for this connection if the URL for it points to a JAR file entry, null otherwise.
Attributes	JarURLConnection.getMainAttributes()           Returns the main Attributes for the JAR file for this connection.
Certificate[]	JarURLConnection.getCertificates()           Return the Certificate object for this connection if the URL for it points to a JAR file entry, null otherwise.
Enumeration	URLClassLoader.findResources(String name)           Returns an Enumeration of URLs representing all of the resources on the URL search path having the specified name.
abstract  Object	ContentHandler.getContent(URLConnection urlc)           Given a URL connect stream positioned at the beginning of the representation of an object, this method reads that stream and creates an object from it.
Object	ContentHandler.getContent(URLConnection urlc, Class[] classes)           Given a URL connect stream positioned at the beginning of the representation of an object, this method reads that stream and creates an object that matches one of the types specified.
abstract  void	URLConnection.connect()           Opens a communications link to the resource referenced by this URL, if such a connection has not already been established.
Object	URLConnection.getContent()           Retrieves the contents of this URL connection.
Object	URLConnection.getContent(Class[] classes)           Retrieves the contents of this URL connection.
Permission	URLConnection.getPermission()           Returns a permission object representing the permission necessary to make the connection represented by this object.
InputStream	URLConnection.getInputStream()           Returns an input stream that reads from this open connection.
OutputStream	URLConnection.getOutputStream()           Returns an output stream that writes to this connection.
static String	URLConnection.guessContentTypeFromStream(InputStream is)           Tries to determine the type of an input stream based on the characters at the beginning of the input stream.
protected abstract  URLConnection	URLStreamHandler.openConnection(URL u)           Opens a connection to the object referenced by the URL argument.
URLConnection	URL.openConnection()           Returns a URLConnection object that represents a connection to the remote object referred to by the URL.
InputStream	URL.openStream()           Opens a connection to this URL and returns an InputStream for reading from that connection.
Object	URL.getContent()           Gets the contents of this URL.
Object	URL.getContent(Class[] classes)           Gets the contents of this URL.

 

Constructors in java.net that throw IOException

MulticastSocket()           Create a multicast socket.

MulticastSocket(int port)           Create a multicast socket and bind it to a specific port.

MulticastSocket(SocketAddress bindaddr)           Create a MulticastSocket bound to the specified socket address.

Socket(String host, int port)           Creates a stream socket and connects it to the specified port number on the named host.

Socket(InetAddress address, int port)           Creates a stream socket and connects it to the specified port number at the specified IP address.

Socket(String host, int port, InetAddress localAddr, int localPort)           Creates a socket and connects it to the specified remote host on the specified remote port.

Socket(InetAddress address, int port, InetAddress localAddr, int localPort)           Creates a socket and connects it to the specified remote address on the specified remote port.

Socket(String host, int port, boolean stream)           Deprecated. Use DatagramSocket instead for UDP transport.

Socket(InetAddress host, int port, boolean stream)           Deprecated. Use DatagramSocket instead for UDP transport.

ServerSocket()           Creates an unbound server socket.

ServerSocket(int port)           Creates a server socket, bound to the specified port.

ServerSocket(int port, int backlog)           Creates a server socket and binds it to the specified local port number, with the specified backlog.

ServerSocket(int port, int backlog, InetAddress bindAddr)           Create a server with the specified port, listen backlog, and local IP address to bind to.

 

Uses of IOException in java.nio.channels

 

Subclasses of IOException in java.nio.channels
class	AsynchronousCloseException           Checked exception received by a thread when another thread closes the channel or the part of the channel upon which it is blocked in an I/O operation.
class	ClosedByInterruptException           Checked exception received by a thread when another thread interrupts it while it is blocked in an I/O operation upon a channel.
class	ClosedChannelException           Checked exception thrown when an attempt is made to invoke or complete an I/O operation upon channel that is closed, or at least closed to that operation.
class	FileLockInterruptionException           Checked exception received by a thread when another thread interrupts it while it is waiting to acquire a file lock.

 

Methods in java.nio.channels that throw IOException
static SocketChannel	SocketChannel.open()           Opens a socket channel.
static SocketChannel	SocketChannel.open(SocketAddress remote)           Opens a socket channel and connects it to a remote address.
abstract  boolean	SocketChannel.connect(SocketAddress remote)           Connects this channel's socket.
abstract  boolean	SocketChannel.finishConnect()           Finishes the process of connecting a socket channel.
abstract  int	SocketChannel.read(ByteBuffer dst)
abstract  long	SocketChannel.read(ByteBuffer[] dsts, int offset, int length)
long	SocketChannel.read(ByteBuffer[] dsts)
abstract  int	SocketChannel.write(ByteBuffer src)
abstract  long	SocketChannel.write(ByteBuffer[] srcs, int offset, int length)
long	SocketChannel.write(ByteBuffer[] srcs)
static ServerSocketChannel	ServerSocketChannel.open()           Opens a server-socket channel.
abstract  SocketChannel	ServerSocketChannel.accept()           Accepts a connection made to this channel's socket.
static Pipe	Pipe.open()           Opens a pipe.
static Selector	Selector.open()           Opens a selector.
abstract  int	Selector.selectNow()           Selects a set of keys whose corresponding channels are ready for I/O operations.
abstract  int	Selector.select(long timeout)           Selects a set of keys whose corresponding channels are ready for I/O operations.
abstract  int	Selector.select()           Selects a set of keys whose corresponding channels are ready for I/O operations.
abstract  void	Selector.close()           Closes this selector.
static DatagramChannel	DatagramChannel.open()           Opens a datagram channel.
abstract  DatagramChannel	DatagramChannel.connect(SocketAddress remote)           Connects this channel's socket.
abstract  DatagramChannel	DatagramChannel.disconnect()           Disconnects this channel's socket.
abstract  SocketAddress	DatagramChannel.receive(ByteBuffer dst)           Receives a datagram via this channel.
abstract  int	DatagramChannel.send(ByteBuffer src, SocketAddress target)           Sends a datagram via this channel.
abstract  int	DatagramChannel.read(ByteBuffer dst)           Reads a datagram from this channel.
abstract  long	DatagramChannel.read(ByteBuffer[] dsts, int offset, int length)           Reads a datagram from this channel.
long	DatagramChannel.read(ByteBuffer[] dsts)           Reads a datagram from this channel.
abstract  int	DatagramChannel.write(ByteBuffer src)           Writes a datagram to this channel.
abstract  long	DatagramChannel.write(ByteBuffer[] srcs, int offset, int length)           Writes a datagram to this channel.
long	DatagramChannel.write(ByteBuffer[] srcs)           Writes a datagram to this channel.
abstract  SelectableChannel	SelectableChannel.configureBlocking(boolean block)           Adjusts this channel's blocking mode.
abstract  void	FileLock.release()           Releases this lock.
long	ScatteringByteChannel.read(ByteBuffer[] dsts, int offset, int length)           Reads a sequence of bytes from this channel into a subsequence of the given buffers.
long	ScatteringByteChannel.read(ByteBuffer[] dsts)           Reads a sequence of bytes from this channel into the given buffers.
long	GatheringByteChannel.write(ByteBuffer[] srcs, int offset, int length)           Writes a sequence of bytes to this channel from a subsequence of the given buffers.
long	GatheringByteChannel.write(ByteBuffer[] srcs)           Writes a sequence of bytes to this channel from the given buffers.
int	ReadableByteChannel.read(ByteBuffer dst)           Reads a sequence of bytes from this channel into the given buffer.
void	InterruptibleChannel.close()           Closes this channel.
abstract  int	FileChannel.read(ByteBuffer dst)           Reads a sequence of bytes from this channel into the given buffer.
abstract  long	FileChannel.read(ByteBuffer[] dsts, int offset, int length)           Reads a sequence of bytes from this channel into a subsequence of the given buffers.
long	FileChannel.read(ByteBuffer[] dsts)           Reads a sequence of bytes from this channel into the given buffers.
abstract  int	FileChannel.write(ByteBuffer src)           Writes a sequence of bytes to this channel from the given buffer.
abstract  long	FileChannel.write(ByteBuffer[] srcs, int offset, int length)           Writes a sequence of bytes to this channel from a subsequence of the given buffers.
long	FileChannel.write(ByteBuffer[] srcs)           Writes a sequence of bytes to this channel from the given buffers.
abstract  long	FileChannel.position()           Returns this channel's file position.
abstract  FileChannel	FileChannel.position(long newPosition)           Sets this channel's file position.
abstract  long	FileChannel.size()           Returns the current size of this channel's file.
abstract  FileChannel	FileChannel.truncate(long size)           Truncates this channel's file to the given size.
abstract  void	FileChannel.force(boolean metaData)           Forces any updates to this channel's file to be written to the storage device that contains it.
abstract  long	FileChannel.transferTo(long position, long count, WritableByteChannel target)           Transfers bytes from this channel's file to the given writable byte channel.
abstract  long	FileChannel.transferFrom(ReadableByteChannel src, long position, long count)           Transfers bytes into this channel's file from the given readable byte channel.
abstract  int	FileChannel.read(ByteBuffer dst, long position)           Reads a sequence of bytes from this channel into the given buffer, starting at the given file position.
abstract  int	FileChannel.write(ByteBuffer src, long position)           Writes a sequence of bytes to this channel from the given buffer, starting at the given file position.
abstract  MappedByteBuffer	FileChannel.map(FileChannel.MapMode mode, long position, long size)           Maps a region of this channel's file directly into memory.
abstract  FileLock	FileChannel.lock(long position, long size, boolean shared)           Acquires a lock on the given region of this channel's file.
FileLock	FileChannel.lock()           Acquires an exclusive lock on this channel's file.
abstract  FileLock	FileChannel.tryLock(long position, long size, boolean shared)           Attempts to acquire a lock on the given region of this channel's file.
FileLock	FileChannel.tryLock()           Attempts to acquire an exclusive lock on this channel's file.
void	Channel.close()           Closes this channel.
int	WritableByteChannel.write(ByteBuffer src)           Writes a sequence of bytes to this channel from the given buffer.

 

Uses of IOException in java.nio.channels.spi

 

Methods in java.nio.channels.spi that throw IOException
void	AbstractSelector.close()           Closes this selector.
protected abstract  void	AbstractSelector.implCloseSelector()           Closes this selector.
protected  void	AbstractSelectableChannel.implCloseChannel()           Closes this channel.
protected abstract  void	AbstractSelectableChannel.implCloseSelectableChannel()           Closes this selectable channel.
SelectableChannel	AbstractSelectableChannel.configureBlocking(boolean block)           Adjusts this channel's blocking mode.
protected abstract  void	AbstractSelectableChannel.implConfigureBlocking(boolean block)           Adjusts this channel's blocking mode.
abstract  DatagramChannel	SelectorProvider.openDatagramChannel()           Opens a datagram channel.
abstract  Pipe	SelectorProvider.openPipe()           Opens a pipe.
abstract  AbstractSelector	SelectorProvider.openSelector()           Opens a selector.
abstract  ServerSocketChannel	SelectorProvider.openServerSocketChannel()           Opens a server-socket channel.
abstract  SocketChannel	SelectorProvider.openSocketChannel()           Opens a socket channel.
void	AbstractInterruptibleChannel.close()           Closes this channel.
protected abstract  void	AbstractInterruptibleChannel.implCloseChannel()           Closes this channel.

 

Uses of IOException in java.nio.charset

 

Subclasses of IOException in java.nio.charset
class	CharacterCodingException           Checked exception thrown when a character encoding or decoding error occurs.
class	MalformedInputException           Checked exception thrown when an input byte sequence is not legal for given charset, or an input character sequence is not a legal sixteen-bit Unicode sequence.
class	UnmappableCharacterException           Checked exception thrown when an input character (or byte) sequence is valid but cannot be mapped to an output byte (or character) sequence.

 

Uses of IOException in java.rmi

 

Subclasses of IOException in java.rmi
class	AccessException           An AccessException is thrown by certain methods of the java.rmi.Naming class (specifically bind, rebind, and unbind) and methods of the java.rmi.activation.ActivationSystem interface to indicate that the caller does not have permission to perform the action requested by the method call.
class	ConnectException           A ConnectException is thrown if a connection is refused to the remote host for a remote method call.
class	ConnectIOException           A ConnectIOException is thrown if an IOException occurs while making a connection to the remote host for a remote method call.
class	MarshalException           A MarshalException is thrown if a java.io.IOException occurs while marshalling the remote call header, arguments or return value for a remote method call.
class	NoSuchObjectException           A NoSuchObjectException is thrown if an attempt is made to invoke a method on an object that no longer exists in the remote virtual machine.
class	RemoteException           A RemoteException is the common superclass for a number of communication-related exceptions that may occur during the execution of a remote method call.
class	ServerError           A ServerError is thrown as a result of a remote method invocation when an Error is thrown while processing the invocation on the server, either while unmarshalling the arguments, executing the remote method itself, or marshalling the return value.
class	ServerException           A ServerException is thrown as a result of a remote method invocation when a RemoteException is thrown while processing the invocation on the server, either while unmarshalling the arguments, executing the remote method itself, or marshalling the return value.
class	ServerRuntimeException           Deprecated. no replacement
class	StubNotFoundException           A StubNotFoundException is thrown if a valid stub class could not be found for a remote object when it is exported.
class	UnexpectedException           An UnexpectedException is thrown if the client of a remote method call receives, as a result of the call, a checked exception that is not among the checked exception types declared in the throws clause of the method in the remote interface.
class	UnmarshalException           An UnmarshalException can be thrown while unmarshalling the parameters or results of a remote method call if any of the following conditions occur: if an exception occurs while unmarshalling the call header if the protocol for the return value is invalid if a java.io.IOException occurs unmarshalling parameters (on the server side) or the return value (on the client side).

 

Methods in java.rmi that throw IOException
Object	MarshalledObject.get()           Returns a new copy of the contained marshalledobject.

 

Constructors in java.rmi that throw IOException

MarshalledObject(Object obj)           Creates a new MarshalledObject that contains the serialized representation of the current state of the supplied object.

 

Uses of IOException in java.rmi.activation

 

Subclasses of IOException in java.rmi.activation
class	ActivateFailedException           This exception is thrown by the RMI runtime when activation fails during a remote call to an activatable object.

 

Uses of IOException in java.rmi.server

 

Subclasses of IOException in java.rmi.server
class	ExportException           An ExportException is a RemoteException thrown if an attempt to export a remote object fails.
class	SkeletonMismatchException           Deprecated. no replacement. Skeletons are no longer required for remote method calls in the Java 2 platform v1.2 and greater.
class	SkeletonNotFoundException           Deprecated. no replacement. Skeletons are no longer required for remote method calls in the Java 2 platform v1.2 and greater.
class	SocketSecurityException           A SocketSecurityException is thrown during remote object export if the code exporting the remote object (either by construction or by explicit call to the exportObject method of UnicastRemoteObject or java.rmi.activation.Activatable) does not have permission to create a java.net.ServerSocket on the port number specified during remote object export.

 

Methods in java.rmi.server that throw IOException
abstract  Socket	RMISocketFactory.createSocket(String host, int port)           Creates a client socket connected to the specified host and port.
abstract  ServerSocket	RMISocketFactory.createServerSocket(int port)           Create a server socket on the specified port (port 0 indicates an anonymous port).
static void	RMISocketFactory.setSocketFactory(RMISocketFactory fac)           Set the global socket factory from which RMI gets sockets (if the remote object is not associated with a specific client and/or server socket factory).
ServerSocket	RMIServerSocketFactory.createServerSocket(int port)           Create a server socket on the specified port (port 0 indicates an anonymous port).
Socket	RMIClientSocketFactory.createSocket(String host, int port)           Create a client socket connected to the specified host and port.
void	UID.write(DataOutput out)           Marshals a binary representation of this UID to a DataOutput instance.
static UID	UID.read(DataInput in)           Constructs and returns a new UID instance by unmarshalling a binary representation from an DataInput instance.
void	ObjID.write(ObjectOutput out)           Marshals a binary representation of this ObjID to an ObjectOutput instance.
static ObjID	ObjID.read(ObjectInput in)           Constructs and returns a new ObjID instance by unmarshalling a binary representation from an ObjectInput instance.
ObjectOutput	RemoteCall.getOutputStream()           Deprecated. no replacement
void	RemoteCall.releaseOutputStream()           Deprecated. no replacement
ObjectInput	RemoteCall.getInputStream()           Deprecated. no replacement
void	RemoteCall.releaseInputStream()           Deprecated. no replacement
ObjectOutput	RemoteCall.getResultStream(boolean success)           Deprecated. no replacement
void	RemoteCall.done()           Deprecated. no replacement

 

Uses of IOException in java.security

 

Methods in java.security that throw IOException
Object	SignedObject.getObject()           Retrieves the encapsulated object.
void	DigestOutputStream.write(int b)           Updates the message digest (if the digest function is on) using the specified byte, and in any case writes the byte to the output stream.
void	DigestOutputStream.write(byte[] b, int off, int len)           Updates the message digest (if the digest function is on) using the specified subarray, and in any case writes the subarray to the output stream.
int	DigestInputStream.read()           Reads a byte, and updates the message digest (if the digest function is on).
int	DigestInputStream.read(byte[] b, int off, int len)           Reads into a byte array, and updates the message digest (if the digest function is on).
abstract  void	KeyStoreSpi.engineStore(OutputStream stream, char[] password)           Stores this keystore to the given output stream, and protects its integrity with the given password.
abstract  void	KeyStoreSpi.engineLoad(InputStream stream, char[] password)           Loads the keystore from the given input stream.
void	KeyStore.store(OutputStream stream, char[] password)           Stores this keystore to the given output stream, and protects its integrity with the given password.
void	KeyStore.load(InputStream stream, char[] password)           Loads this KeyStore from the given input stream.
void	Certificate.encode(OutputStream stream)           Deprecated. Encodes the certificate to an output stream in a format that can be decoded by the decode method.
void	Certificate.decode(InputStream stream)           Deprecated. Decodes a certificate from an input stream.
protected abstract  void	AlgorithmParametersSpi.engineInit(byte[] params)           Imports the specified parameters and decodes them according to the primary decoding format for parameters.
protected abstract  void	AlgorithmParametersSpi.engineInit(byte[] params, String format)           Imports the parameters from params and decodes them according to the specified decoding format.
protected abstract  byte[]	AlgorithmParametersSpi.engineGetEncoded()           Returns the parameters in their primary encoding format.
protected abstract  byte[]	AlgorithmParametersSpi.engineGetEncoded(String format)           Returns the parameters encoded in the specified format.
void	AlgorithmParameters.init(byte[] params)           Imports the specified parameters and decodes them according to the primary decoding format for parameters.
void	AlgorithmParameters.init(byte[] params, String format)           Imports the parameters from params and decodes them according to the specified decoding scheme.
byte[]	AlgorithmParameters.getEncoded()           Returns the parameters in their primary encoding format.
byte[]	AlgorithmParameters.getEncoded(String format)           Returns the parameters encoded in the specified scheme.
void	Provider.load(InputStream inStream)           Reads a property list (key and element pairs) from the input stream.

 

Constructors in java.security that throw IOException

SignedObject(Serializable object, PrivateKey signingKey, Signature signingEngine)           Constructs a SignedObject from any Serializable object.

 

Uses of IOException in java.security.cert

 

Methods in java.security.cert that throw IOException
void	X509CRLSelector.setIssuerNames(Collection names)           Sets the issuerNames criterion.
void	X509CRLSelector.addIssuerName(String name)           Adds a name to the issuerNames criterion.
void	X509CRLSelector.addIssuerName(byte[] name)           Adds a name to the issuerNames criterion.
void	X509CertSelector.setIssuer(String issuerDN)           Sets the issuer criterion.
void	X509CertSelector.setIssuer(byte[] issuerDN)           Sets the issuer criterion.
void	X509CertSelector.setSubject(String subjectDN)           Sets the subject criterion.
void	X509CertSelector.setSubject(byte[] subjectDN)           Sets the subject criterion.
void	X509CertSelector.setSubjectPublicKeyAlgID(String oid)           Sets the subjectPublicKeyAlgID criterion.
void	X509CertSelector.setSubjectPublicKey(byte[] key)           Sets the subjectPublicKey criterion.
void	X509CertSelector.setExtendedKeyUsage(Set keyPurposeSet)           Sets the extendedKeyUsage criterion.
void	X509CertSelector.setSubjectAlternativeNames(Collection names)           Sets the subjectAlternativeNames criterion.
void	X509CertSelector.addSubjectAlternativeName(int type, String name)           Adds a name to the subjectAlternativeNames criterion.
void	X509CertSelector.addSubjectAlternativeName(int type, byte[] name)           Adds a name to the subjectAlternativeNames criterion.
void	X509CertSelector.setNameConstraints(byte[] bytes)           Sets the name constraints criterion.
void	X509CertSelector.setPolicy(Set certPolicySet)           Sets the policy constraint.
void	X509CertSelector.setPathToNames(Collection names)           Sets the pathToNames criterion.
void	X509CertSelector.addPathToName(int type, String name)           Adds a name to the pathToNames criterion.
void	X509CertSelector.addPathToName(int type, byte[] name)           Adds a name to the pathToNames criterion.
byte[]	X509CertSelector.getIssuerAsBytes()           Returns the issuer criterion as a byte array.
byte[]	X509CertSelector.getSubjectAsBytes()           Returns the subject criterion as a byte array.