package com.hithomelabs.clients.module4; import com.hithomelabs.princeton1.module4.ArrayStack; import com.hithomelabs.princeton1.module4.Stack; public class ArrayStackClient { public static void main(String[] args) { Stack stack = new ArrayStack(); for(int i = 0; i < 21; i++){ stack.push(i); } // Using object s, as stack is generic but every java Object has implementation of toString() for (Object s : stack) System.out.println(s); while(!stack.isEmpty()){ System.out.println(stack.pop()); } } }