org.apache.commons.lang
Class CharSet

java.lang.Object
  |
  +--org.apache.commons.lang.CharSet

public class CharSet

extends Object

A set of characters. You can iterate over the characters in the set.

Version:

$Id: CharSet.java,v 1.4 2002/09/29 08:20:52 bayard Exp $

Author:

Henri Yandell, Stephen Colebourne

Field Summary

private LinkedList

set

Constructor Summary

protected

CharSet(String[] set) Restricted constructor.

Method Summary

protected void	add(String str) Add a set definition string to the set
boolean	contains(char ch) Does the set contain the character specified
String	toString() Returns a string representation of the set

Methods inherited from class java.lang.Object

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

Field Detail

set

private LinkedList set

Constructor Detail

CharSet

protected CharSet(String[] set)

Restricted constructor. Use the factory method evaluateSet().

Throws:

NullPointerException - if any of set[i] is null or if set is null

Method Detail

contains

public boolean contains(char ch)

Does the set contain the character specified

Parameters:

ch - the character to check for

Returns:

true if it does contain it

add

protected void add(String str)

Add a set definition string to the set

Parameters:

str - set definition string

Throws:

NullPointerException - if str is null

toString

public String toString()

Returns a string representation of the set

Overrides:

toString in class Object

Returns:

string representation