Re: [ccp4bb] How to run Java program?

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CCP4bb <-- 2007 <-- April 2007 <-- 03 April 2007

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Subject: Question about cryoprotectant
From: yang li robertcatrukie {- at -} GMAIL {- dot -} COM
Date: 2007-04-03

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Subject: Re: How to run Java program?
From: Justin Schmitz Justin {- dot -} Schmitz {- at -} UNI-DUESSELDORF {- dot -} DE
Date: 2007-04-03

Subject: Re: How to run Java program?
From: Kevin Cowtan cowtan {- at -} YSBL {- dot -} YORK {- dot -} AC {- dot -} UK
Date: 2007-04-03

The file you need to run should end .class or .jar. If you don't have
such a file, you'll need to compile it first. You probably need a java
sdk rather than jre, although gcj might do the trick.

Then:
javac Switch.java
should make the .class file. (You may need to include the path to your
java compiler).

Finally:
java Switch.class
should run it.

Of course Switch may not be a runnable class, in which case you'll get
an error.

Kevin

yang li wrote:
> Hi,
> I have a java program named Switch.java, I want to run it under
> fedora5 core, I donnot know any compiler
> I need to install? I installed a package named
> jre-1_5_0_11-linux-i586-rpm.bin, when I use command
> java Switch.java
> wrong information came out:
> Exception in thread "main" java.lang.NoClassDefFoundError: SwitchI
> at gnu.java.lang.MainThread.run(libgcj.so.7)
> Caused by: java.lang.ClassNotFoundException: SwitchI not found in
> gnu.gcj.runtime.SystemClassLoader{urls=[file:./],
> parent=gnu.gcj.runtime.ExtensionClassLoader{urls=[], parent=null}}
> at java.net.URLClassLoader.findClass(libgcj.so.7)
> at java.lang.ClassLoader.loadClass(libgcj.so.7 )
> at java.lang.ClassLoader.loadClass(libgcj.so.7)
> at java.lang.Class.forName(libgcj.so.7)
> at gnu.java.lang.MainThread.run(libgcj.so.7)
>
> Then I used command yum install libgcj.so.7 , but it was not helpful.
> I am a java newhand, any help will be appreciated, thanks!

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CCP4bb <-- 2007 <-- April 2007 <-- 03 April 2007

Previous message:
Subject: Question about cryoprotectant
From: yang li robertcatrukie {- at -} GMAIL {- dot -} COM
Date: 2007-04-03

Next message:
Subject: Re: How to run Java program?
From: Justin Schmitz Justin {- dot -} Schmitz {- at -} UNI-DUESSELDORF {- dot -} DE
Date: 2007-04-03