Also available as TreeSetPlay.java

/**
 * Title: TreeSetPlay
 * Description: Simple example of using TreeSet (sorted set)
 * @author hollingd@cs.rpi.edu
 */
import java.util.*;

class TreeSetPlay {

        public static void main(String [] args ) {

                // Create an ArrayList object
                TreeSet x = new TreeSet();

                // Populate with 10 random Integer objects
                Random r = new Random();

                for (int i=0;i<20;i++) {
                        if (! x.add( new Integer(r.nextInt(100)))) {
                                System.out.println("Duplicate!");
                        }
                                
                }
                System.out.println("Set: " + x);
        }




}