Module java.base

Package 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

Constructors

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

Method Summary

Modifier and Type	Method	Description
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 declared in class java.lang.Throwable

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

Methods declared in class java.lang.Object

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

Constructor Details

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 Details

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