How to sort an ArrayList in Java in descending order?

To sort an ArrayList in Java in descending order in following way :-

  • Create an ArrayList
  • To Sort the data of the ArrayList using the Collections.sort() method of the Collections class
  • Now reverse array list using the Collections.reverseOrder() method of the Collections class.
				
					import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;

public class SortReverseAL {
	public static void main(String[] args) {
		List nList = new ArrayList<>();
		nList.add(15);
		nList.add(50);
		nList.add(233);
		nList.add(400);
		nList.add(250);
		Comparator<Integer> cmp = Collections.reverseOrder();
		Collections.sort(nList, cmp);
		System.out.println(nList);
	}
}

Output :-
[400, 250, 233, 50, 15]

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