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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 and Description

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

PatternSyntaxException (Java Platform SE 7 ) Home of API Java Contents Haut

Method Summary

Methods
Modifier and Type	Method and 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.

PatternSyntaxException (Java Platform SE 7 ) Home of API Java Contents Haut

Methods inherited from class java.lang.Throwable
addSuppressed, fillInStackTrace, getCause, getLocalizedMessage, getStackTrace, getSuppressed, 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

Error Infobrol

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Type of error (18-01)

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Steph

Class PatternSyntaxException

Constructor Summary

Method Summary

Methods inherited from class java.lang.Throwable

Methods inherited from class java.lang.Object

Constructor Detail

PatternSyntaxException

Method Detail

getIndex

getDescription

getPattern

getMessage

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Type of error (18-01)

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