package com.smarttechguides; import java.io.IOException; import java.util.Iterator; import java.util.Stack; public class Account { public static void main(String[] args) throws IOException { Stack<String> CustomerName = new Stack<String>(); CustomerName.add("venkat"); CustomerName.add("Imran"); CustomerName.add("Joy"); CustomerName.add("Joy"); CustomerName.push("avish"); System.out.println("top of the stack item is :" + CustomerName.peek()); Iterator<String> iterator = CustomerName.iterator(); while (iterator.hasNext()) { System.out.println(iterator.next()); } } }