Adding JPanels to JScrollPane

Question

I\'m trying to show multiple smaller JPanel on a JScrollPane. To achieve this I currently add them to another JPanel and set this pane

Answer 1

Thanks to the help I was able to get it working. I'll just add my solution including changes for reference and further comments:

public class SingleClientPanel extends JPanel
{
    private JTextField ipTextfield;
    private JTextField uuidTextField;
    public SingleClientPanel()
    {
        this("127.000.000.001",UUID.randomUUID().toString(),true);
    }
    public SingleClientPanel(String ip, String uuid,boolean isLocal) 
    {
        /*
        removed: 
        setSize(new Dimension(440, 35));
        setPreferredSize(new Dimension(440, 35));
        setMaximumSize(new Dimension(440, 35));
        setMinimumSize(new Dimension(440, 35));*/
        setBorder(new LineBorder(new Color(0, 0, 0), 1, true));
        setLayout(new BoxLayout(this, BoxLayout.X_AXIS));       // added this

        ipTextfield = new JTextField();
        ipTextfield.setHorizontalAlignment(SwingConstants.CENTER);
        ipTextfield.setAlignmentX(Component.LEFT_ALIGNMENT);
        ipTextfield.setFocusable(false);
        ipTextfield.setEditable(false);
        add(ipTextfield);
        ipTextfield.setColumns(15);
        ipTextfield.setText(ip);

        uuidTextField = new JTextField();
        uuidTextField.setHorizontalAlignment(SwingConstants.CENTER);
        uuidTextField.setEditable(false);
        uuidTextField.setFocusable(false);
        add(uuidTextField);
        uuidTextField.setColumns(30);
        uuidTextField.setText(uuid);

        JButton button = new JButton(">");
        button.setEnabled(!isLocal);
        add(button);
        this.revalidate();
    }
}

public class ClientOverviewPanel extends JPanel
{
    public ClientOverviewPanel()
    {
        setLayout(new BorderLayout(0, 0));

        JButton btnOk = new JButton("Ok");
        btnOk.addActionListener(new ActionListener()
        {
            public void actionPerformed(ActionEvent arg0)
            {
                 Window x = SwingUtilities.getWindowAncestor(ClientOverviewPanel.this);
                 if(x != null) x.dispose();
            }
        });
        add(btnOk, BorderLayout.SOUTH);

        JScrollPane scrollPane = new JScrollPane();
        /*
        removed: 
        scrollPane.setPreferredSize(new Dimension(480, 480));
        scrollPane.setSize(new Dimension(480, 480));
        scrollPane.setMinimumSize(new Dimension(480, 40));*/
        scrollPane.setViewportBorder(null);
        scrollPane.setVerticalScrollBarPolicy(ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS);

        Box box = new Box(BoxLayout.PAGE_AXIS);  //added

        for (int i=0; i<5;i++)
        {
            SingleClientPanel cpan = new SingleClientPanel();
            //cpan.setLocation(0, 45 *i);  removed  
            box.add(cpan);      //changed
        }

        scrollPane.setViewportView(box);    //changed
        add(scrollPane, BorderLayout.CENTER);
        this.revalidate();
    }
}