PatternSyntaxException (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.util.regex
Class PatternSyntaxException

java.lang.Object
  |
  +--java.lang.Throwable
        |
        +--java.lang.Exception
              |
              +--java.lang.RuntimeException
                    |
                    +--java.lang.IllegalArgumentException
                          |
                          +--java.util.regex.PatternSyntaxException

All Implemented Interfaces:: Serializable

public class PatternSyntaxException
extends IllegalArgumentException

Unchecked exception thrown to indicate a syntax error in a regular-expression pattern.

Since:: 1.4
See Also:: Serialized Form

Constructor Summary

PatternSyntaxException(String desc, String regex, int index)
          Constructs a new instance of this class.

Method Summary

String getDescription()
          Retrieves the description of the error.

int getIndex()
          Retrieves the error index.

String getMessage()
          Returns a multi-line string containing the description of the syntax error and its index, the erroneous regular-expression pattern, and a visual indication of the error index within the pattern.

String getPattern()
          Retrieves the erroneous regular-expression pattern.

Methods inherited from class java.lang.Throwable

fillInStackTrace, getCause, getLocalizedMessage, getStackTrace, initCause, printStackTrace, printStackTrace, printStackTrace, setStackTrace, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

PatternSyntaxException

public PatternSyntaxException(String desc,
                              String regex,
                              int index)

Constructs a new instance of this class.
Parameters:: desc - A description of the error; regex - The erroneous pattern; index - The approximate index in the pattern of the error, or -1 if the index is not known

Method Detail

getIndex

public int getIndex()

Retrieves the error index.

Returns:: The approximate index in the pattern of the error, or -1 if the index is not known

getDescription

public String getDescription()

Retrieves the description of the error.

Returns:: The description of the error

getPattern

public String getPattern()

Retrieves the erroneous regular-expression pattern.

Returns:: The erroneous pattern

getMessage

public String getMessage()

Returns a multi-line string containing the description of the syntax error and its index, the erroneous regular-expression pattern, and a visual indication of the error index within the pattern.

Overrides:: getMessage in class Throwable

Returns:: The full detail message