CODEWITHSUNDEEP
javaswinguser-interfaceinvisible
Jon Perron
Jon Perron

Reputation: 75

Java Swing GUI Invisible

basically I have a very simple GUI, but for some reason when I run the code the JButtons only appear when I mouse over them, and the JTextField only appear if I click on them. How do I fix this so that they are visible when the program runs? Thanks.

Here is my code:

    //JFrame + settings
    JFrame frmFormSubmission = new JFrame();

    frmFormSubmission.setSize(new Dimension(350, 165));
    frmFormSubmission.setTitle("Form Submission - Client");
    frmFormSubmission.setLocationRelativeTo(null);
    frmFormSubmission.setVisible(true);
    frmFormSubmission.setResizable(false);
    frmFormSubmission.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    //JPanel
    JPanel panel = new JPanel();
    frmFormSubmission.getContentPane().add(panel, BorderLayout.CENTER);
    panel.setLayout(null);

    //JLabels
    //Name
    JLabel lblName = new JLabel("Name:");
    lblName.setFont(new Font("Tahoma", Font.PLAIN, 14));
    lblName.setBounds(46, 12, 40, 14);
    panel.add(lblName);

    //Address
    JLabel lblAddress = new JLabel("Address:");
    lblAddress.setFont(new Font("Tahoma", Font.PLAIN, 14));
    lblAddress.setBounds(33, 37, 53, 14);
    panel.add(lblAddress);

    //Phone
    JLabel lblPhone = new JLabel("Phone #:");
    lblPhone.setFont(new Font("Tahoma", Font.PLAIN, 14));
    lblPhone.setBounds(28, 62, 58, 14);
    panel.add(lblPhone);

    //Email
    JLabel lblEmail = new JLabel("Email:");
    lblEmail.setFont(new Font("Tahoma", Font.PLAIN, 14));
    lblEmail.setBounds(46, 87, 36, 14);
    panel.add(lblEmail);

    //JTextFields
    //Name
    nameField = new JTextField();
    nameField.setBounds(93, 11, 137, 20);
    panel.add(nameField);
    nameField.setColumns(10);

    //Address
    addressField = new JTextField();
    addressField.setColumns(10);
    addressField.setBounds(93, 36, 137, 20);
    panel.add(addressField);

    //Phone
    phoneField = new JTextField();
    phoneField.setColumns(10);
    phoneField.setBounds(93, 61, 137, 20);
    panel.add(phoneField);

    //Email
    emailField = new JTextField();
    emailField.setColumns(10);
    emailField.setBounds(93, 86, 137, 20);
    panel.add(emailField);

    //JButtons
    //Submit
    JButton btnSubmit = new JButton("Submit");
    btnSubmit.setBounds(240, 10, 89, 23);
    panel.add(btnSubmit);

    //Cancel
    JButton btnCancel = new JButton("Cancel");
    btnCancel.setBounds(240, 44, 89, 23);
    panel.add(btnCancel);

    //Flush
    JButton btnFlush = new JButton("Flush");
    btnFlush.setBounds(240, 76, 89, 23);
    panel.add(btnFlush);

    //Checkbox
    JCheckBox chckbxPromotions = new JCheckBox("Email me with new and promotions!");
    chckbxPromotions.setBounds(25, 108, 205, 23);
    panel.add(chckbxPromotions);

Any help is very much appreciated!

Upvotes: 1

Views: 1519

Answers (2)

ipinyol
ipinyol

Reputation: 336

Also, try 

frmFormSubmission.invalidate();
frmFormSubmission.validate();
frmFormSubmission.repaint();

If this still does not work, you can try this:

SwingUtilities.updateComponentTreeUI(frmFormSubmission);

Upvotes: 0

NESPowerGlove
NESPowerGlove

Reputation: 5496

Call frmFormSubmission.setVisible(true); as the last thing you do. setVisible will layout your components so they can be properly drawn. If you add components without laying them out, then you'll have graphical issues.

For more information on what that means, check out the documentation on the validate method.

Upvotes: 1

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