package lab13;

public class StackTest1 {

    public static void main(String[] args) {
        Stack stack = new Stack();

        for (int i = 0; i < 5; i++) {
            stack.push(i);     // Autoboxing: same as s0.push (new Integer(i);
        }
        int sum = 0;
        while (!stack.isEmpty()) {
            System.out.println (stack.peek());
            sum += (Integer) stack.pop();
        }
        System.out.println ();
        System.out.println ("sum = " + sum);
    }
}