CardLayout in Applet not showing

Question

I'm trying to write an applet that switches between cards using CardLayout, but the app is not showing anything at all and I can't figure out what's wrong. A little help would be much appreciated :)

import javax.swing.*;
import java.awt.*;

public class TEST extends JApplet{


    @Override
    public void init(){

    }

    @Override
    public void start(){

        JPanel cards = new JPanel(new CardLayout());

        JPanel main = new JPanel();
        main.setLayout(new GridLayout(3, 1, 2, 2));

        JTextField jtfEmail = new JTextField("E-mail", 10);
        main.add(jtfEmail);

        JTextField jtfPassword = new JPasswordField("Password", 10);                
        main.add(jtfPassword);

        JPanel buttons = new JPanel();

        JButton jbtLogin = new JButton("Login");        
        buttons.add(jbtLogin);

        JButton jbtRegister = new JButton("Register");
        buttons.add(jbtRegister);        
        main.add(buttons);

        cards.add(main, "Main");

        CardLayout cardLayout = (CardLayout) cards.getLayout();

        cardLayout.show(cards, "Main");
    }
}

Answer 1

Problem: You're not adding anything to the applet's contentPane anywhere.

Solution: Do that -- add something to the applet's contentPane so that you can see it.

Also, you will want to look for an applet tutorial on Google and have a look at it.