how to reverse an arraylist in java

/**
 * @author lautturi.com
 * Java example: reverse an arraylist in java
 */

import java.util.*;

public class Lautturi {

	public static void main(String[] args) {

		ArrayList<Integer> arrlist = new ArrayList<Integer>();
		for (int i = 1; i < 10; i++) {
			arrlist.add(i);
		}

		System.out.println(arrlist);
		
		Collections.reverse(arrlist);
		
		System.out.println(arrlist);

	}
}

output:

[1, 2, 3, 4, 5, 6, 7, 8, 9]
[9, 8, 7, 6, 5, 4, 3, 2, 1]