delimiter in Scanner Java

/**
 * @author lautturi.com 
 * Java example:
 */

import java.util.*;

public class Lautturi {

	public static void main(String[] args){
		//Scanner scanner = new Scanner(System.in);
		Scanner scanner = new Scanner("hello lautturi");
		//Printing the delimiter
		System.out.println("Delimiter:" + scanner.delimiter());  
	}
}

output:

Delimiter:\p{javaWhitespace}+