Applet Changes in 1.5

Applet Changes in 1.5_03 SDK?

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Jammin Jay - 30 May 2005 20:12 GMT

Hello Everyone,

I recently installed NetBeans 4.1 and the latest JDK (build 1.5.0_03-b07).
I have been working out of a text book from SNHU programming an applet that is a calculator. My problem is when the applet executes, both in the browser and applet viewer, the paint method goes into a viscous loop that never ends..
Has something changed with this latest JVM? Am I missing something?

The code :

public void paint(Graphics g) {
resize(row1.getWidth(), 8*d1.getHeight());
validate();
}

row1 is a Panel and d1 is a Button object.

I have attached the complete code for the interface to this post. Any help would be greatly appreciated.

Jason

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Noem - 30 May 2005 23:17 GMT

Applets... the final frontier! I haven't even touched applets in months, so
here goes...

I have no idea why it would do that. But it's got something to do with
refreshing the screen obviously. After commenting out all the instructions
in the paint() method and running the applet with a specified width of 150
pixels in the HTML file it seems to work fine.

<APPLET CODE="CalculatorApplet.class" WIDTH=150 HEIGHT=250></APPLET>

Regards

--
Ewald Horn
Business Manager
NoFuss Solutions
South Africa / Suid Afrika
Tel : +27 (0)83 305 3556
Web : http://www.nofusspos.com
Email / E-pos : ewald@nofusspos.com

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Jammin Jay - 31 May 2005 02:13 GMT

Thanks Noem,

The Author of this book was trying to introduce layout managers and event
handling. I even used his code and got the same results. After some
snooping I found a slightly different workaround.. I just overrode the
start() method and called setSize() method with the parameters used in the
resize method... I also junked the validate call.
I should have guessed that there would be more problems with the book.. I
was very disappointed with the class that I took, it wasn't challenging at
all. I come from a C/C++ background and I expected the course to cover GUI
based OO application development, but I couldn't have been more wrong... The
entire course just used console apps to rehash every simple concept I have
ever had in other languages..
Picking out the authors errors and figuring out what needs to be done to fix
them is more satisfying.

J

> Applets... the final frontier! I haven't even touched applets in months,
> so
[quoted text clipped - 17 lines]
> Web : http://www.nofusspos.com
> Email / E-pos : ewald@nofusspos.com

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Applet Changes in 1.5_03 SDK?

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