Sort an array of strings in reverse order. : Comparator Interface « Collections « Java Tutorial

1. Java Tutorial
2. Collections
3. Comparator Interface

import java.util.Arrays;
import java.util.Comparator;

class MyComparator implements Comparator<String> {

  public int compare(String strA, String strB) {
    return strB.compareTo(strA);
  }
}

public class Main {
  public static void main(String[] argv) throws Exception {
    String strs[] = { "d", "h", "a", "c", "t" };

    MyComparator rsc = new MyComparator();

    Arrays.sort(strs, rsc);

    for (String s : strs)
      System.out.println(s + " ");

    Arrays.sort(strs);

    System.out.print("Sorted in natural order: ");
    for (String s : strs)
      System.out.println(s + " ");
  }
}
/*
t 
h 
d 
c 
a 
Sorted in natural order: a 
c 
d 
h 
t 
*/