get part of a string in java

/**
 * @author lautturi.com 
 * Java example: java get substring from a string 
 */

import java.util.*;

public class Lautturi {

	public static void main(String[] args) {

		String str = "12345abcdef";

		System.out.println(str.substring(1)); // 2345abcdef
		System.out.println(str.substring(1, 3)); // 23
		System.out.println(str.substring(0,5)); // 12345
		System.out.println(str.substring(0,11)); // 12345abcdef
		System.out.println(str.substring(0,12));// Range [0, 12) out of bounds for length 11
		System.out.println(str.substring(-1,2)); // Range [-1, 2) out of bounds for length 11
		
	}
}