Java Programming help please?

I need to create a JApplet containing a JLabel and a Jbutton. a JButton should automatically change font typeface, style and size when clicked. I have this coding so far :

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class JChangeFont extends JFrame implements ActionListener
{
JLabel name = new JLabel ("Your Name");
Font bigfont = new Font ("Arial",Font.ITALIC, 16);
JButton press = new JButton ("Press");
final int WIDTH = 450;
final int HEIGHT = 200;

and I am stuck here, I don't know what to write forward, can you please show me the coding for changing jbutton font?

Thanks for your help