Collections: comparator() : Collections « java.util « Java by API

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Java by API » java.util » Collections

Collections: comparator()


  



/*

 Output:



[S, P, G, E]

java.util.Collections$ReverseComparator@192d342





 * */



import java.util.Collections;

import java.util.Set;

import java.util.TreeSet;



public class MainClass {

  public static void main(String args[]) throws Exception {

    String elements[] = { "S", "P", "E","G", "P" };

    Set set = new TreeSet(Collections.reverseOrder());

    for (int i = 0, n = elements.length; i < n; i++) {

      set.add(elements[i]);

    }

    System.out.println(set);

    System.out.println(((TreeSet) set).comparator());

  }

}

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