How to split string by a regular expression in java

/**
 * @author lautturi.com
 * Java example:  Split string by a regular expression in java
 */

import java.util.*;

public class Lautturi {

	public static void main(String[] args) {

		String str  = "Hello , Java World";
		String[] keywords = str.split("[\s,]+");

		for (String word : keywords) {
			System.out.println(word);
		}
		
	}
}

output:

Hello
Java
World