如何在Java中正确向JButton添加图标？

Question

I am trying to add this icon to a button in my minesweeper application. However, instead of having the icon, I get an empty square. Here's the code I'm using: (The code was used just to test if I can actually can add the icon to a button)

SwingUtilities.invokeLater(() -> {
                JFrame frame = new JFrame("Test");
                frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
                JButton button = new JButton("\uD83D\uDEA9");
                Font font = new Font("Code2000", Font.PLAIN, 12);
                button.setFont(font);
                frame.add(button);
                frame.pack();
                frame.setVisible(true);           
            });

Thanks in advance.

Answer 1

Try adding an ImageIcon to the Button

JButton button = new JButton();
ImageIcon image = new ImageIcon(Directory);
button.setIcon(image);

A very simple solution!