Java Find MIN/MAX Values in ArrayList

/**
 * @author lautturi.com 
 * Java example: find Minimum/Maximum values in array list
 */

import java.util.*;

public class Lautturi {

	public static void main(String[] args) {

		ArrayList<Integer> numbers = new ArrayList<Integer>();
		numbers.add(3);
		numbers.add(7);
		numbers.add(15);
		numbers.add(8);
		numbers.add(22);
		numbers.add(12);

		System.out.println("Arraylist: " + numbers);
		
		// finding the minimum value in array list in java
		int min = Collections.min(numbers);
		System.out.println("Minimum Element: " + min);

		// finding the maximum value in array list in java
		int max = Collections.max(numbers);
		System.out.println("Maximum Element: " + max);
	}

}

output:

Arraylist: [3, 7, 15, 8, 22, 12]
Minimum Element: 3
Maximum Element: 22