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:

Constructor Summary

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

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https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/regex/PatternSyntaxException.html