Thread: implements MouseListener doesn't work why

The problem is in RED

the code that is in red is not compiled ... why .. What I missed in my code

package promouseevent;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
 
public class ProMouseEvent1 extends JFrame
{
   public ProMouseEvent1(String title)
   {
 
   }
 
   [COLOR="Red"]private class MouseWatcher implements MouseListener[/COLOR]
   {
 
   }
 
}

this is the output error:

init:
deps-jar:
Compiling 1 source file to C:\NBGuide\ProMouseEvent\build\classes
C:\NBGuide\ProMouseEvent\src\promouseevent\ProMouseEvent1.java:39: promouseevent.ProMouseEvent1.MouseWatcher is not abstract and does not override abstract method mouseExited(java.awt.event.MouseEvent) in java.awt.event.MouseListener
   private class MouseWatcher implements MouseListener
1 error
BUILD FAILED (total time: 0 seconds)

I solved it myself ..

When to implement an abstract interface, I should provide the code for all the abstract methods to get my code to compile and work... if I don't want the method to does any action just write the method with empty braces.

package promouseevent;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
 
public class ProMouseEvent1 extends JFrame
{
   public ProMouseEvent1(String title)
   {
 
   }
 
   private class MouseWatcher implements MouseListener
   {
      public void mouseClicked(MouseEvent e)
      {
 
      }
 
      public void mouseEntered(MouseEvent e)
      {
 
      }
 
      public void mouseReleased(MouseEvent e)
      {
 
      }
 
      public void mousePressed(MouseEvent e)
      {
 
      }
 
      public void mouseExited(MouseEvent e)
      {
 
      }
   }
 
}

Well done for solving your thread

I have moved it to the Swing forum and marked it as solved!