package Collection1;

import java.util.ArrayList;

class MyStack<T extends Number, E> {

T data;

ArrayList<T> stackList = new ArrayList<>();

public void push(T data) {

this.data = data;

stackList.add(this.data);

}

public void pop() {

System.out.println("Pop is " + stackList.remove(stackList.size() - 1));

}

@Override

public String toString() {

return "MyStack [ stackList=" + stackList + "]";

}

}

public class TemplateExample {

public static void main(String[] args) {

MyStack<Integer, String> myStack = new MyStack<>();

myStack.push(10);

myStack.push(20);

System.out.println("Now the Stack is " + myStack);

myStack.pop();

System.out.println("After Pop " + myStack);

MyStack<Double, String> myStack2 = new MyStack<>();

}

}