Java stack test

package com.kunpengku;import java.util.Iterator;import java.util.Stack;public class Welcome {    public static Stack<Integer> abc = new Stack();    public static void main(String[] args) throws Exception    {        for (int i=0;i<10;i++){            abc.push(i);        }        for (Iterator i=abc.iterator()  ;i.hasNext();){            System.out.println(i.next());        }       }}