package collections_questions;

import java.util.*;

public class q17 {

public static void main(String[] args) {

/* ArrayList<Integer> al=new ArrayList<>();

al.add(10);

al.add(20);

al.add(30);

al.add(40);

al.add(50);

for(int i: al) {

System.out.println(i+" ");

}*/

Stack<Integer> s1=new Stack();

s1.push(10);

s1.push(20);

s1.push(30);

s1.push(40);

s1.push(50);

for(int i: s1) {

System.out.println(i+" ");

}

System.out.println(s1.pop());

System.out.println(s1.peek());

}

}