sorting in an ArrayList

 import java.util.ArrayList;

import java.util.Collections;

public class sorting {

    public static void main(String[] args) {

        ArrayList<Integer> list = new ArrayList<>();

        list.add(1);

        list.add(10);

        list.add(18);

        list.add(7);

        list.add(34);

        list.add(5);

        System.out.println("ArrayList before sorting:" + list);

        Collections.sort(list);

        System.out.println("ArrayList after sorting" + list);

        //DESCENDING ORDER

        Collections.sort(list, Collections.reverseOrder());

        System.out.println("Descending order:"+list);

    }

}