java how to delete character certain index in string

/**
 * @author lautturi.com
 * Java example: Remove the character from the nth position in the string
 */

import java.util.*;

public class Lautturi {

	public static void main(String[] args) {

		String str = "Hello World Lauutturi";
		int index = 15;
		String newStr = str.substring(0, index) + str.substring(index + 1);
		System.out.println(newStr);	
		
	}
}

output:

Hello World Lautturi