DemoStack2 - Java - main

public class DemoStack2 {

    public static void main(String[] args) {
        System.out.println("Demo de Stack");

        Stack<Character> miPila = new Stack<Character>();

        miPila.push('a');
        miPila.push('b');
        miPila.push('c');

        System.out.println(miPila.pop());
        System.out.println(miPila.pop());
        System.out.println(miPila.pop());

        try {
            System.out.println(miPila.peek());
        } catch (Exception e){
            System.out.println(e.getMessage());
        }

    }

}