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Setting text background color?

How can I set text background color in JOptionPane?

Image:

enter image description here

UIManager UI = new UIManager();
UI.put("OptionPane.background", Color.white);
UIManager.put("Button.background", Color.white);
UI.put("Panel.background", Color.white);
UI.put("OptionPane.foreground", Color.white);
UI.put("OptionPane.messagebackground", Color.white);
UI.put("OptionPane.textbackground", Color.white);
UI.put("OptionPane.warningDialog.titlePane.shadow", Color.white);
UI.put("OptionPane.warningDialog.border.background", Color.white);
UI.put("OptionPane.warningDialog.titlePane.background", Color.white);
UI.put("OptionPane.warningDialog.titlePane.foreground", Color.white);
UI.put("OptionPane.questionDialog.border.background", Color.white);
UI.put("OptionPane.questionDialog.titlePane.background", Color.white);
UI.put("OptionPane.questionDialog.titlePane.foreground", Color.white);
UI.put("OptionPane.questionDialog.titlePane.shadow", Color.white);
UI.put("OptionPane.messageForeground", Color.white);
UI.put("OptionPane.foreground", Color.white);
UI.put("OptionPane.errorDialog.border.background", Color.white);
UI.put("OptionPane.errorDialog.titlePane.background", Color.white);
UI.put("OptionPane.errorDialog.titlePane.foreground", Color.white);
UI.put("OptionPane.errorDialog.titlePane.shadow", Color.white);

JOptionPane.showMessageDialog(null, "Hello world", "HELLO WORLD", JOptionPane.INFORMATION_MESSAGE);
Solution

  • Why not you simply add a custom JPanel at this place as shown below :

    JOptionPane.showMessageDialog(frame, getLabelPanel(), "Hello World!",
                                        JOptionPane.INFORMATION_MESSAGE);

    You can get the JPanel from a method, like :

    private JPanel getLabelPanel() {
    JPanel panel = new JPanel();
    panel.setOpaque(true);
    panel.setBackground(Color.BLUE);
    JLabel helloLabel = new JLabel("Hello World!", JLabel.CENTER);
    helloLabel.setForeground(Color.WHITE);
    panel.add(helloLabel);

    return panel;
}

    OUTPUT :

    PANEIMAGE

    UPDATE 1 :

    Else you can try this to change everything, 

    uimanager.put("OptionPane.background", Color.BLUE);
uimanager.put("OptionPane.messagebackground", Color.BLUE);
uimanager.put("Panel.background", Color.BLUE);

    UPDATED OUTPUT :

    OPTIONPANEIMAGE