Reverse Stack

package com;

import java.util.Stack;

public class StackReverse {

    public static void reverse(Stack<Integer> stack) {

        Stack<Integer> temporaryStack = new Stack<>();

        //copy all the elements from given stack to temporary stack
        while(stack.size()>0){
            temporaryStack.push(stack.pop());
        }

        while(temporaryStack.size()>0){
            int x = temporaryStack.pop();
            System.out.print(x + " ");
            stack.push(x);
        }
    }

    public static void main(String[] args) {
        Stack<Integer> stack = new Stack<>();
        stack.push(10);
        stack.push(20);
        stack.push(30);
        stack.push(40);


        reverse(stack);

    }
}