如何定义jpanels到他们自己的类之间切换？

Question

Currently making a program that is to access a sql database where the data is viewed on a Jtable with textfields and buttons on the side to alter add and delete data from the database (this is all working). What I'm troubled with is, I've started making my other jpanels, (currently using one class for all this) and I've found that the amount of lines of code is getting large..

I would like to ask, is it possible define each jpanels content and buttons in their own separate class, and how I would go about doing so. With that, how would I switch between each jpanel?

Currently using a cardlayout with different japanels. Heres how my UI looks, (not the main jpanel).

The 5 buttons at the very top of the GUI is supposed to navigate between the jpanels, and the rest of the buttons, textfields and jtables differ depending on the jpanel thats navigated to.

Some of the code within the main class, which has my jpanels:

    JPanel main_panel = new JPanel();
    contentPane.add(main_panel, "name_21784032966449");
    main_panel.setLayout(null);

    JButton btnHome = new JButton("Home");
    btnHome.setBounds(10, 11, 97, 38);
    main_panel.add(btnHome);

    JButton btnHandOver = new JButton("Hand Over");
    btnHandOver.setBounds(117, 11, 97, 38);
    main_panel.add(btnHandOver);

    JButton btnMachineLogs = new JButton("Machine Logs");
    btnMachineLogs.setBounds(224, 11, 97, 38);
    main_panel.add(btnMachineLogs);

    JButton btnParts = new JButton("Parts");
    btnParts.setBounds(10, 60, 97, 38);
    main_panel.add(btnParts);

    JButton btnRunup = new JButton("Run Up");
    btnRunup.setBounds(117, 60, 97, 38);
    main_panel.add(btnRunup);

    JPanel parts_panel = new JPanel();
    contentPane.add(parts_panel, "name_22617526869296");
    parts_panel.setLayout(null);

I have no idea how to instead define each jpanel to their own classes, and less for how to make it possible to switch between panels.

Answer 1

Thanks to hovercraft full of eels, with the link to a previous question and answer:

CardLayout changing panel from another class