this is part A about the Questionbut i want help with part B please

part A :

part B ( the one i need help with :) )

1) Write class Stack that Extend class LinkedList such that it have the following structure: class Stack extened LinkedList public Stack //creates empty stack public Stack (int d) //creates stack with a node contain d //add a node contain d in the top of the stack public void push (int d) public int pop0 //remove the top node and return the int data public isEmpty0 //check if the stack is empty