站内搜索: 请输入搜索关键词
当前页面: 在线文档首页 > JDK 5 Documentation v1.2.2, Java 2 SDK 英文文档

Java(TM) 2 Platform, Standard Edition, v1.2.2 API Specification: Class Short - JDK 5 Documentation v1.2.2, Java 2 SDK 英文文档

JavaTM 2 Platform
Standard Edition

java.lang
Class Short

java.lang.Object
  |
  +--java.lang.Number
        |
        +--java.lang.Short

public final class Short
extends Number
implements Comparable

The Short class is the standard wrapper for short values.

Since:
JDK1.1
See Also:
Number, Serialized Form

Field Summary
static short MAX_VALUE
          The maximum value a Short can have.
static short MIN_VALUE
          The minimum value a Short can have.
static Class TYPE
          The Class object representing the primitive type short.
 
Constructor Summary
Short(short value)
          Constructs a Short object initialized to the specified short value.
Short(String s)
          Constructs a Short object initialized to the value specified by the String parameter.
 
Method Summary
 byte byteValue()
          Returns the value of this Short as a byte.
 int compareTo(Object o)
          Compares this Short to another Object.
 int compareTo(Short anotherShort)
          Compares two Shorts numerically.
static Short decode(String nm)
          Decodes a String into a Short.
 double doubleValue()
          Returns the value of this Short as a double.
 boolean equals(Object obj)
          Compares this object to the specified object.
 float floatValue()
          Returns the value of this Short as a float.
 int hashCode()
          Returns a hashcode for this Short.
 int intValue()
          Returns the value of this Short as an int.
 long longValue()
          Returns the value of this Short as a long.
static short parseShort(String s)
          Assuming the specified String represents a short, returns that short's value.
static short parseShort(String s, int radix)
          Assuming the specified String represents a short, returns that short's value.
 short shortValue()
          Returns the value of this Short as a short.
 String toString()
          Returns a String object representing this Short's value.
static String toString(short s)
          Returns a new String object representing the specified Short.
static Short valueOf(String s)
          Assuming the specified String represents a short, returns a new Short object initialized to that value.
static Short valueOf(String s, int radix)
          Assuming the specified String represents a short, returns a new Short object initialized to that value.
 
Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
 

Field Detail

MIN_VALUE

public static final short MIN_VALUE
The minimum value a Short can have.

MAX_VALUE

public static final short MAX_VALUE
The maximum value a Short can have.

TYPE

public static final Class TYPE
The Class object representing the primitive type short.
Constructor Detail

Short

public Short(short value)
Constructs a Short object initialized to the specified short value.
Parameters:
value - the initial value of the Short

Short

public Short(String s)
      throws NumberFormatException
Constructs a Short object initialized to the value specified by the String parameter. The radix is assumed to be 10.
Parameters:
s - the String to be converted to a Short
Throws:
NumberFormatException - If the String does not contain a parsable short.
Method Detail

toString

public static String toString(short s)
Returns a new String object representing the specified Short. The radix is assumed to be 10.
Parameters:
s - the short to be converted

parseShort

public static short parseShort(String s)
                        throws NumberFormatException
Assuming the specified String represents a short, returns that short's value. Throws an exception if the String cannot be parsed as a short. The radix is assumed to be 10.
Parameters:
s - the String containing the short
Throws:
NumberFormatException - If the string does not contain a parsable short.

parseShort

public static short parseShort(String s,
                               int radix)
                        throws NumberFormatException
Assuming the specified String represents a short, returns that short's value. Throws an exception if the String cannot be parsed as a short.
Parameters:
s - the String containing the short
radix - the radix to be used
Throws:
NumberFormatException - If the String does not contain a parsable short.

valueOf

public static Short valueOf(String s,
                            int radix)
                     throws NumberFormatException
Assuming the specified String represents a short, returns a new Short object initialized to that value. Throws an exception if the String cannot be parsed as a short.
Parameters:
s - the String containing the integer
radix - the radix to be used
Throws:
NumberFormatException - If the String does not contain a parsable short.

valueOf

public static Short valueOf(String s)
                     throws NumberFormatException
Assuming the specified String represents a short, returns a new Short object initialized to that value. Throws an exception if the String cannot be parsed as a short.
Parameters:
s - the String containing the integer
Throws:
NumberFormatException - If the String does not contain a parsable short.

decode

public static Short decode(String nm)
                    throws NumberFormatException
Decodes a String into a Short. Accepts decimal, hexadecimal, and octal numbers, in the following formats:
     [-]    
     [-] 0x     
     [-] #      
     [-] 0    
 
The constant following an (optional) negative sign and/or "radix specifier" is parsed as by the Short.parseShort method with the specified radix (10, 8 or 16). This constant must be positive or a NumberFormatException will result. The result is made negative if first character of the specified String is the negative sign. No whitespace characters are permitted in the String.
Parameters:
nm - the String to decode.
Returns:
the Short represented by the specified string.
Throws:
NumberFormatException - if the String does not contain a parsable short.
See Also:
parseShort(String, int)

byteValue

public byte byteValue()
Returns the value of this Short as a byte.
Overrides:
byteValue in class Number
Tags copied from class: Number
Returns:
the numeric value represented by this object after conversion to type byte.

shortValue

public short shortValue()
Returns the value of this Short as a short.
Overrides:
shortValue in class Number
Tags copied from class: Number
Returns:
the numeric value represented by this object after conversion to type short.

intValue

public int intValue()
Returns the value of this Short as an int.
Overrides:
intValue in class Number
Tags copied from class: Number
Returns:
the numeric value represented by this object after conversion to type int.

longValue

public long longValue()
Returns the value of this Short as a long.
Overrides:
longValue in class Number
Tags copied from class: Number
Returns:
the numeric value represented by this object after conversion to type long.

floatValue

public float floatValue()
Returns the value of this Short as a float.
Overrides:
floatValue in class Number
Tags copied from class: Number
Returns:
the numeric value represented by this object after conversion to type float.

doubleValue

public double doubleValue()
Returns the value of this Short as a double.
Overrides:
doubleValue in class Number
Tags copied from class: Number
Returns:
the numeric value represented by this object after conversion to type double.

toString

public String toString()
Returns a String object representing this Short's value.
Overrides:
toString in class Object
Tags copied from class: Object
Returns:
a string representation of the object.

hashCode

public int hashCode()
Returns a hashcode for this Short.
Overrides:
hashCode in class Object
Tags copied from class: Object
Returns:
a hash code value for this object.
See Also:
Object.equals(java.lang.Object), Hashtable

equals

public boolean equals(Object obj)
Compares this object to the specified object.
Overrides:
equals in class Object
Parameters:
obj - the object to compare with
Returns:
true if the objects are the same; false otherwise.

compareTo

public int compareTo(Short anotherShort)
Compares two Shorts numerically.
Parameters:
anotherShort - the Short to be compared.
Returns:
the value 0 if the argument Short is equal to this Short; a value less than 0 if this Short is numerically less than the Short argument; and a value greater than 0 if this Short is numerically greater than the Short argument (signed comparison).
Since:
JDK1.2

compareTo

public int compareTo(Object o)
Compares this Short to another Object. If the Object is a Short, this function behaves like compareTo(Short). Otherwise, it throws a ClassCastException (as Shorts are comparable only to other Shorts).
Specified by:
compareTo in interface Comparable
Parameters:
o - the Object to be compared.
Returns:
the value 0 if the argument is a Short numerically equal to this Short; a value less than 0 if the argument is a Short numerically greater than this Short; and a value greater than 0 if the argument is a Short numerically less than this Short.
Throws:
ClassCastException - if the argument is not a Short.
Since:
JDK1.2
See Also:
Comparable

JavaTM 2 Platform
Standard Edition

Submit a bug or feature
Java, Java 2D, and JDBC are a trademarks or registered trademarks of Sun Microsystems, Inc. in the US and other countries.
Copyright 1993-1999 Sun Microsystems, Inc. 901 San Antonio Road,
Palo Alto, California, 94303, U.S.A. All Rights Reserved.