import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.Random;

public class CollectionSortEx1 {
	private static ArrayList<Integer> al = new ArrayList<Integer>();

	public static void main(String[] args) {

		Random random = new Random();

		for(int i = 0; i < 100; i++) {
			al.add(random.nextInt(100));
		}

		printAl();
		Collections.sort(al);
		printAl();
	}

	private static void printAl() {
		for(int i : al) {
			System.out.print( i + ", ");
		}
		System.out.println();
	}
}