java how to insert data into an array list

/**
 * @author lautturi.com
 * Java example:insert element into arraylist in java
 */

import java.util.*;

public class Lautturi {

	public static void main(String[] args) {

		List<String> list = new ArrayList<String>();
		list.add("lautturi");
		list.add("java");
		list.add("python");
		list.add("hello");
		list.add(2,"perl"); // insert new data at position 2
		System.out.println(list);
	}
}

output:

[lautturi, java, perl, python, hello]