将鼠标悬停在它上面时，如何更改JButton的文本？

Question

I have a music player application that has a repeat button. I want to make it so when the user hovers over the repeat button with their cursor, the text will change to display the current state of the repeat option (off, one, or list). How can I program my button to do this?

Answer 1

Use a MouseListener and the methodes mouseEntered() and mouseExited() .

final JButton btn = new JButton("repeat");
btn.addMouseListener(new MouseAdapter() {
    @Override
    public void mouseEntered(MouseEvent e) {
        btn.setText("hover");
    }
    @Override
    public void mouseExited(MouseEvent e) {
        btn.setText("repeat");
    }
});