package com.exampleshow.string.regex;
 
/**
 * @author Code Panda
 * Copyright (C) 2008 Java ExampleShow (http://java.exampleshow.com)
 *
 * This code is free software; you can redistribute it and/or modify it.
 * However, this header must remain intact and unchanged. Additional
 * information may be appended after this header. Publications based on
 * this code must also include an appropriate reference.
 * 
 * This code is distributed in the hope that it will be useful, but 
 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 
 * or FITNESS FOR A PARTICULAR PURPOSE.
 *
 */
 
import java.util.regex.Matcher;
import java.util.regex.Pattern;
 
public class RegexGroupExample {
 
    public void testGroup() {
	String candidate = "Java2008ExampleShow";
	String[] regexs = new String[] { 
		"([a-zA-Z]*)(\\d*)(\\w*)",
		"(\\D*)(\\d*)(\\w*)",
		"(\\w*)(\\d*)(\\D*)",
		"(\\d*)(\\w*)(\\D*)" 
		};
 
	for (int i = 0; i < regexs.length; i++) {
 
	    matcherFindGroup(candidate, regexs[i]);
 
	}
    }
 
    private void matcherFindGroup(String src, String regex) {
	System.out.println("\nTry with [" + regex + "]...");
	Pattern pattern = Pattern.compile(regex);
 
	Matcher matcher = pattern.matcher(src);
 
	if (matcher.find()) {
	    System.out.println("GROUP 0:" + matcher.group(0));
	    System.out.println("GROUP 1:" + matcher.group(1));
	    System.out.println("GROUP 2:" + matcher.group(2));
	    System.out.println("GROUP 3:" + matcher.group(3));
	} else {
	    System.out.println("No matches.");
	}
 
	System.out.println("Done!");
    }
 
    public static void main(String[] args) {
	RegexGroupExample rge = new RegexGroupExample();
	rge.testGroup();
    }
 
}