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import java.util.Stack;

public class ExampleOne {

public static void main(String[] args) {

Stack<Integer> list = new Stack<>();

//push operation

list.push(10);

list.push(20);

list.push(30);

list.push(40);

list.push(50);

System.out.println(list);

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

//pop operation

list.pop();

System.out.println("After Pop operations " + list);

boolean isEmpty = list.isEmpty();

if(isEmpty){

System.out.println("Yes stack is Empty ");

}else{

System.out.println("No , Stack is not Empty ");

}