In this example, we will take Integer wrapper class and sort it in descending order by using Collections.sort(names,Collections.reverseOrder()) method.
import java.util.ArrayList; import java.util.Collections; import java.util.List; public class SortWrappersExample { public static void main(String[] args) { sortWrapperClassObjectsInDesc(); } private static void sortWrapperClassObjectsInDesc() { List < Integer > names = new ArrayList < > (); names.add(100); names.add(20); names.add(10); names.add(50); System.out.println("Before Sorting : " + names); Collections.sort(names, Collections.reverseOrder()); System.out.println("After Sorting : " + names); } }
Output
Before Sorting : [100, 20, 10, 50]
After Sorting : [100, 50, 20, 10]
Reference
Collection Framework
Collections
Java
Comments
Post a Comment