<Swing Dev> Adding a label on top of a button

[Pavel Porvatov]

Hi Sanjaya,
> Hi all,
>   I want to add a label(D3) on right top corner of a button as 
> below,Can anyone help please?
>
>
> Inline image 1
>
There are many ways to do that. For example you can override the 
JButton#paintComponent method. Or you can use JLayer, see below:

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

public class JLayerSample {
    public static void main(String[] args) {
        SwingUtilities.invokeLater(new Runnable() {
            @Override
            public void run() {
                JFrame frame = new JFrame();

                JButton button = new JButton("Some button");

                JLayer<JButton> layer = new JLayer<>(button);

                JPanel glassPane = new JPanel(new GridBagLayout());

                glassPane.add(new JLabel("D3"), new 
GridBagConstraints(0, 0, 1, 1, 1, 1,
                        GridBagConstraints.NORTHEAST, 
GridBagConstraints.NONE, new Insets(0, 0, 0, 0),
                        0, 0));

                layer.setGlassPane(glassPane);
                glassPane.setOpaque(false);
                glassPane.setVisible(true);

                frame.add(layer);

                frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
                frame.setSize(600, 400);
                frame.setVisible(true);

            }
        });
    }
}

See more about JLayer here: 
http://docs.oracle.com/javase/tutorial/uiswing/misc/jlayer.html

Regards, Pavel
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