// Chapter 12 Dynamic Data Structures
//

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 sorting ArrayList in descending order : " + arrayList);

	Collections.sort(arrayList);
	System.out.println("\n\nAfter sorting ArrayList in ascending order : " + arrayList);


  }
}