// Page 192-193

import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;

public class SortArrayListInt
{
  public static void main(String[] args)
  {
    //create an ArrayList object
    ArrayList<Integer> arrayList = new ArrayList<Integer>();
    //Add elements to Arraylist
    arrayList.add(12);
    arrayList.add(7);
    arrayList.add(5);
    arrayList.add(34);
    arrayList.add(71);
    Comparator<Integer> comparator = Collections.reverseOrder();
    System.out.println("Before sorting ArrayList: : " + arrayList);
    Collections.sort(arrayList, comparator);
	System.out.println("\n\nAfter in descending order: " + arrayList);
	Collections.sort(arrayList);
	System.out.println("\n\nAfter in ascending order: " + arrayList);
  }
}