pilas

import java.util.*;

public class main{

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

        pila.push(50);
        pila.push("String");
        pila.push("palabra");
        pila.push(17);
        System.out.println("El ultimo elemento de la pila es "+pila.peek());

        while(pila.empty() == false){
            System.out.println("Elimando  a : "+pila.pop());
        }
    }

}