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Groups > comp.lang.java.programmer > #32556

Re: JPanel and paintComponent different results between Windows/Linux

From Jeff Higgins <jeff@invalid.invalid>
Newsgroups comp.lang.java.programmer
Subject Re: JPanel and paintComponent different results between Windows/Linux
Date 2015-09-07 21:21 -0400
Organization A noiseless patient Spider
Message-ID <msld73$969$1@dont-email.me> (permalink)
References <64b2edb0-379c-4e60-b985-891d9c0a320c@googlegroups.com>

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On 09/07/2015 08:27 PM, Dark Mornings wrote:
> Hello. I have a small program that displays a bar graph of 5 bars of varying lengths. The bars display in Windows but not in Linux. I used NetBeans 8/JDK 1.8 to compile the code in Windows and OpenJDK in Ubuntu 14.04. I know paintComponent() is called because I inserted a println() statement into the body of the do-while loop and saw the output. It seems paintComponent() is called 3 times.
>
> Why does the my program work in Windows but not in Linux?
>

You have code that needs to run on the AWT event thread;

public static void main(String args[]) {
     SwingUtilities.invokeLater(new Runnable() {
       public void run() {
         new BarGraph(); // or however you want to arrange it.
       }
     });

You should handle your InputDialog cancel option.

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Thread

JPanel and paintComponent different results between Windows/Linux Dark Mornings <pwong18@gmail.com> - 2015-09-07 17:27 -0700
  Re: JPanel and paintComponent different results between Windows/Linux Jeff Higgins <jeff@invalid.invalid> - 2015-09-07 21:21 -0400
    Re: JPanel and paintComponent different results between Windows/Linux Jeff Higgins <jeff@invalid.invalid> - 2015-09-07 22:41 -0400
    Re: JPanel and paintComponent different results between Windows/Linux Nigel Wade <nmw@ion.le.ac.uk> - 2015-09-08 14:37 +0100
      Re: JPanel and paintComponent different results between Windows/Linux Jeff Higgins <jeff@invalid.invalid> - 2015-09-08 23:04 -0400

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