Untitled

import java.util.Stack;
public class StackMethodsDemo {
public static void main(String[] args) {
//creating an instance of Stack class
Stack<Integer> stk= new Stack<>();
// checking stack is empty or not
boolean result = stk.empty();
System.out.println("Is the stack empty? " + result); //1
// pushing elements into stack
stk.push(153); //2
stk.push(370);
stk.push(371);
stk.push(407);
//prints elements of the stack
System.out.println("Elements in Stack: " + stk);
stk.pop(); //3
System.out.println("After POP Elements in Stack: " + stk);
int top = stk.peek(); //4
System.out.println("Top element in stack Is " + top);
int index=stk.search(370); //5
System.out.println("index of 370 is :"+index);
}
}