I want a MouseListener for a JPanel inside a JTabbedPane in a JFrame...
I want it to print something, whenever the mouse is clicked/pressed.
I've tried looking around but when I try and implement it I got an error on this line:
public class GUI implements ActionListener, MouseListener
And this is the error:
GUI
is not abstract and does not override abstract methodmouseExited(java.awt.event.MouseEvent)
injava.awt.event.MouseListener
What does that mean?
PS (the JPanel/tab bit I want it in is called: displayMainPanel)
Thanks a lot.
Well, you have to override mouseExit
:
In your GUI
class:
@Override
public void mouseExit(MouseEvent e) { /* Do nothing */ }
When all errors are gone. Don't forget to yourPanel.addMouseListener(theMouseListener)
:
yourPanel.addMouseListener(theObjectOfTheClassWhichImplementsTheListener);
And then set the focus an the panel, to be sure events will be caught.
yourPanel.requestFocus();
JPanel jPanel = new JPanel();
jPanel.addMouseListener(new java.awt.event.MouseAdapter() {
public void mouseClicked(java.awt.event.MouseEvent evt) {
System.out.println("mouseClicked");
}
public void mouseEntered(java.awt.event.MouseEvent evt) {
System.out.println("mouseEntered");
}
public void mouseExited(java.awt.event.MouseEvent evt) {
System.out.println("mouseExited");
}
public void mousePressed(java.awt.event.MouseEvent evt) {
System.out.println("mousePressed");
}
public void mouseReleased(java.awt.event.MouseEvent evt) {
System.out.println("mouseReleased");
}
});
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