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Thread: please help me with windowlistener

  1. #1
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    Unhappy please help me with windowlistener

    hi all ,
    I am new to java , i wrote a simple applet , it did not work , i tried windowlistener , it gave an error when i tried to add the listener , whats wrong . But when i add mouse or key listener i dont get this error

    my code :
    import java.awt.*;
    import java.awt.event.*;
    import java.applet.*;
    public class maximizerepaint extends Applet implements WindowListener

    {
    public void init(){addWindowListener(this);}
    public void start(){}
    public void windowActivated(WindowEvent we){}
    public void windowClosed(WindowEvent we){}
    public void windowClosing(WindowEvent we){}
    public void windowDeactivated(WindowEvent we){}
    public void windowDeiconified(WindowEvent we){}
    public void windowIconified(WindowEvent we){}
    public void windowOpened(WindowEvent we){}
    public void paint(Graphics g){update(g);}
    public void update(Graphics g){g.drawRect(0,0,10,10);}
    }

    error:cannot find symbol addWindowListener(maximizerepaint)


  2. #2
    Super Moderator curmudgeon's Avatar
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    Default Re: please help me with windowlistener

    Hello and welcome to the javaprogrammingforums.com!

    Your problem is that you're trying to add a WindowListener to an Applet, a class that has no addWindowListener(...) method, and so the compiler is justifiably complaining. I suggest that you not even use Applets but rather use a more modern GUI library, the Swing library. There are great tutorials on how to use Swing which you can find here: Using Swing Components.

  3. #3
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    Default Re: please help me with windowlistener

    Thanks a lot !!! That gives me a start

    --- Update ---

    i searched the forum for books on java swing , found one , can you please suggest me some books or is the online source good enough for a beginner like me , i apologize if i am posting the wrong question for the forum

  4. #4
    Super Moderator curmudgeon's Avatar
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    Default Re: please help me with windowlistener

    I've already given you the best source that I know of in a link in my answer above.

  5. #5
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    Default Re: please help me with windowlistener

    thanks a lot