ParsePosition (Java 2 Platform SE v1.4.1) - JDK 5 Documentation v1.4.1, Java 2 SDK 英文文档

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Java^TM 2 Platform
Std. Ed. v1.4.1

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java.text
Class ParsePosition

java.lang.Object
  |
  +--java.text.ParsePosition

public class ParsePosition
extends Object

ParsePosition is a simple class used by Format and its subclasses to keep track of the current position during parsing. The parseObject method in the various Format classes requires a ParsePosition object as an argument.

By design, as you parse through a string with different formats, you can use the same ParsePosition, since the index parameter records the current position.

See Also:: Format

Constructor Summary

ParsePosition(int index)
          Create a new ParsePosition with the given initial index.

Method Summary

boolean equals(Object obj)
          Overrides equals

int getErrorIndex()
          Retrieve the index at which an error occurred, or -1 if the error index has not been set.

int getIndex()
          Retrieve the current parse position.

int hashCode()
          Returns a hash code for this ParsePosition.

void setErrorIndex(int ei)
          Set the index at which a parse error occurred.

void setIndex(int index)
          Set the current parse position.

String toString()
          Return a string representation of this ParsePosition.

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

ParsePosition

public ParsePosition(int index)

Create a new ParsePosition with the given initial index.

Method Detail

getIndex

public int getIndex()

Retrieve the current parse position. On input to a parse method, this is the index of the character at which parsing will begin; on output, it is the index of the character following the last character parsed.

setIndex

public void setIndex(int index)

Set the current parse position.

setErrorIndex

public void setErrorIndex(int ei)

Set the index at which a parse error occurred. Formatters should set this before returning an error code from their parseObject method. The default value is -1 if this is not set.

getErrorIndex

public int getErrorIndex()

Retrieve the index at which an error occurred, or -1 if the error index has not been set.

equals

public boolean equals(Object obj)

Overrides equals

Overrides:: equals in class Object

Parameters:: obj - the reference object with which to compare.
Returns:: true if this object is the same as the obj argument; false otherwise.
See Also:: Object.hashCode(), Hashtable

hashCode

public int hashCode()

Returns a hash code for this ParsePosition.

Overrides:: hashCode in class Object

Returns:: a hash code value for this object
See Also:: Object.equals(java.lang.Object), Hashtable

toString

public String toString()

Return a string representation of this ParsePosition.

Overrides:: toString in class Object

Returns:: a string representation of this object