MCV - Buttons Not Working?

I am learning out design patterns and doing a little fun project on Model Control View (MCV). I got the concept down, it is pretty simple for the most part. However my buttons are not working.

Here is the code:

public class Controller
{
private Model model;
private View view;
 Controller(Model model, View view) {
this.model = model;
this.view = view;

[code]....

It runs but nothing. My other questions is how can I make a box that will print the results.