Create a Node class and all required methods to represent the nodes of a stack has been declared.

public class Node { private int data; private Node link; // Constructor and all required methods should be completed. }

Create a class called "StackQuiz" which keeps the top node.

public class StackQuiz { private Node top; }

Define a constructor for StackQuiz class and write a method called

public int pushFactorial (int number)

that finds the factorial of given parameter, and add it to the end of the stack. Return the added number.