遍历TreeSet的元素

/*
n o w j a   v  a . c o m - 时  代  Java 提供
*/


import java.util.TreeSet;

import java.util.Iterator;

 

public class Main {

 

  public static void main(String[] args) {

    TreeSet tSet = new TreeSet();

   

    tSet.add(new Integer("1"));

    tSet.add(new Integer("2"));

    tSet.add(new Integer("3"));

   

    Iterator itr = tSet.iterator();

   

    System.out.println("TreeSet contains : ");