PatternSyntaxException

public class PatternSyntaxException
extends IllegalArgumentException

java.lang.Object
↳	java.lang.Throwable
	↳	java.lang.Exception
		↳	java.lang.RuntimeException
			↳	java.lang.IllegalArgumentException
				↳	java.util.regex.PatternSyntaxException

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

Summary

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

Public methods
`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.

Inherited methods

From class


        
          java.lang.Throwable

`final void`	`addSuppressed(Throwable exception)` Appends the specified exception to the exceptions that were suppressed in order to deliver this exception.
`Throwable`	`fillInStackTrace()` Fills in the execution stack trace.
`Throwable`	`getCause()` Returns the cause of this throwable or `null` if the cause is nonexistent or unknown.
`String`	`getLocalizedMessage()` Creates a localized description of this throwable.
`String`	`getMessage()` Returns the detail message string of this throwable.
`StackTraceElement[]`	`getStackTrace()` Provides programmatic access to the stack trace information printed by `printStackTrace()`.
`final Throwable[]`	`getSuppressed()` Returns an array containing all of the exceptions that were suppressed, typically by the `try`-with-resources statement, in order to deliver this exception.
`Throwable`	`initCause(Throwable cause)` Initializes the cause of this throwable to the specified value.
`void`	`printStackTrace()` Prints this throwable and its backtrace to the standard error stream.
`void`	`printStackTrace(PrintWriter s)` Prints this throwable and its backtrace to the specified print writer.
`void`	`printStackTrace(PrintStream s)` Prints this throwable and its backtrace to the specified print stream.
`void`	`setStackTrace(StackTraceElement[] stackTrace)` Sets the stack trace elements that will be returned by `getStackTrace()` and printed by `printStackTrace()` and related methods.
`String`	`toString()` Returns a short description of this throwable.

From class


        
          java.lang.Object

`Object`	`clone()` Creates and returns a copy of this object.
`boolean`	`equals(Object obj)` Indicates whether some other object is "equal to" this one.
`void`	`finalize()` Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.
`final Class<?>`	`getClass()` Returns the runtime class of this `Object`.
`int`	`hashCode()` Returns a hash code value for the object.
`final void`	`notify()` Wakes up a single thread that is waiting on this object's monitor.
`final void`	`notifyAll()` Wakes up all threads that are waiting on this object's monitor.
`String`	`toString()` Returns a string representation of the object.
`final void`	`wait(long timeoutMillis, int nanos)` Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
`final void`	`wait(long timeoutMillis)` Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
`final void`	`wait()` Causes the current thread to wait until it is awakened, typically by being notified or interrupted.

Public constructors

PatternSyntaxException

Added in API level 1

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

Constructs a new instance of this class.

Parameters
`desc`	`String`: A description of the error
`regex`	`String`: The erroneous pattern
`index`	`int`: The approximate index in the pattern of the error, or `-1` if the index is not known

Public methods

getDescription

Added in API level 1

public String getDescription ()

Retrieves the description of the error.

Returns
`String`	The description of the error

getIndex

Added in API level 1

public int getIndex ()

Retrieves the error index.

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

getMessage

Added in API level 1

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.

Returns
`String`	The full detail message

getPattern

Added in API level 1

public String getPattern ()

Retrieves the erroneous regular-expression pattern.

Returns
`String`	The erroneous pattern