import java.util.Collections; import java.util.Comparator; import java.util.Vector; public class Main { public static void main(String[] args) { Vector<String> v = new Vector<String>(); v.add("1"); v.add("2"); v.add("3"); v.add("4"); v.add("5"); Comparator comparator = Collections.reverseOrder(); System.out.println(v); Collections.sort(v, comparator); System.out.println(v); } }