HELP

this is the code I have:

But the professor said this:

"Yours is wrong since you are traversing the Stack. You only have access to the top of the Stack. Remember that you need to only use peek and pop methods."

How do I write the display method with peek and pop methods?

Suppose that the ADT stack included the void method display, which displays the entries in a stack. Implement this method for each of the following classes: a) LinkedStack, as outlined in Listing 6-1. Submission files: Driver.java LinkedStack.java StackInterface.java //displays the entries in a stack public void display() Node node = this.topNode; while(node != null)\{ System. out.println(node.getData() + " "); node = node.getNextNode(); \}