Java Program To Sort ArrayList In Descending Order

Chapter: Collections Last Updated: 25-06-2016 21:28:03 UTC

Program:

            /* ............... START ............... */
                
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;

public class JavaSortArrayListDescendingOrder {

	public static void main(String[] args) {

		ArrayList arrayList = new ArrayList();

		arrayList.add(1);
		arrayList.add(2);
		arrayList.add(3);
		arrayList.add(4);
		arrayList.add(5);

		Comparator comparator = Collections.reverseOrder();

		System.out.println("Before sorting  : " + arrayList);

		Collections.sort(arrayList, comparator);
		System.out.println("After sorting  : " + arrayList);

	}
}

                /* ............... END ............... */
        

Output

Before sorting  : [1, 2, 3, 4, 5]
After sorting  : [5, 4, 3, 2, 1]

Tags

Collection, Sort ArrayList In descending order, Java

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