MyComparator.java Source code

Introduction

Here is the source code for MyComparator.java

Source

/**
 *Output: 
 F E D C B A 
  */

import java.util.Comparator;
import java.util.TreeSet;

class MyComparator implements Comparator<String> {
    public int compare(String a, String b) {
        String aStr, bStr;

        aStr = a;
        bStr = b;

        return bStr.compareTo(aStr);
    }
    // No need to override equals.
}

public class MainClass {
    public static void main(String args[]) {
        TreeSet<String> ts = new TreeSet<String>(new MyComparator());

        ts.add("C");
        ts.add("A");
        ts.add("B");
        ts.add("E");
        ts.add("F");
        ts.add("D");

        for (String element : ts)
            System.out.print(element + " ");

        System.out.println();
    }
}