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Thread: implements MouseListener doesn't work why

  1. #1
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    Default 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)
    Last edited by voltaire; May 1st, 2010 at 03:17 PM.


  2. #2
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    Default Re: implements MouseListener doesn't work why

    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)
          {
     
          }
       }
     
    }
    Last edited by voltaire; May 1st, 2010 at 04:36 PM.

  3. #3
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    Default Re: implements MouseListener doesn't work why

    Well done for solving your thread

    I have moved it to the Swing forum and marked it as solved!
    Please use [highlight=Java] code [/highlight] tags when posting your code.
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