Method main

13_Stacks/StackAL.java:30–41

(String args[])

        }
    }
    public static void main(String args[]) {
        Stack stack = new Stack();
        stack.push(1);
        stack.push(2);
        stack.push(3);
        stack.push(4);

        while(!stack.isEmpty()) {
            System.out.println(stack.peek());
            stack.pop();
        }
    }
}