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Groups > comp.lang.java.gui > #3849

Re: Is there a limit to t

From "Jack Marsh" <jack.marsh@THRWHITE.remove-dii-this>
Subject Re: Is there a limit to t
Message-ID <oY6dnXp2HfREMBLVnZ2dnUVZ_vKdnZ2d@comcast.com> (permalink)
Newsgroups comp.lang.java.gui
References <42635c54-bd04-4871-bbc5-c621bc1fead0@8g2000hse.googlegroups.com>
Date 2011-04-27 15:47 +0000
Organization TDS.net

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  To: comp.lang.java.gui
Style issues aside, I found your problem:

> 
> public void init()
>{
>
>resetactuallftorealextent();
>
>	GraphicsDataList graphicsList = new GraphicsDataList();
> 
> 

should be
public void init()
{

    resetactuallftorealextent();
    graphicsList = new GraphicsDataList();
   ...

You have declared a new local variable with the same name as your class 
instance variable.  When the init() method terminates so does this local 
version.  The problem you experienced but failed to describe was an 
endless series of NullPointerException stack traces being thrown and 
discarded behind the scenes.

And please refactor the code to use camelCase names.  Just scanning 
through it gave me and anyone who looked at it headaches.

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Thread

Re: Is there a limit to t Paul.Lee.1971@gmail.com.remove-dii-this - 2011-04-27 15:47 +0000
  Re: Is there a limit to t "Jack Marsh" <jack.marsh@THRWHITE.remove-dii-this> - 2011-04-27 15:47 +0000
    Re: Is there a limit to t "Daniele Futtorovic" <daniele.futtorovic@THRWHITE.remove-dii-this> - 2011-04-27 15:47 +0000
    Re: Is there a limit to t "RedGrittyBrick" <redgrittybrick@THRWHITE.remove-dii-this> - 2011-04-27 15:47 +0000
      Re: Is there a limit to t "Lew" <lew@THRWHITE.remove-dii-this> - 2011-04-27 15:47 +0000

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