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java CLASSPATH problem?
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Axion
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Joined: 13 Jan 2003
Posts: 8

PostPosted: Thu Oct 27, 2005 10:11 am    Post subject: java CLASSPATH problem? Reply with quote

Hi, I'm not a new Java programmer...but I'm new to it on Linux. My .class file works on Windows, but it doesn't work on Gentoo with blackdown-jre and blackdown-jdk. I have compiled it with blackdown javac. All the other threads relating to the error below tell me to check my CLASSPATH, but AFAIK it is right.

blackdown java version:
Code:

[axion|java>sudo equery l blackdown
[ Searching for package 'blackdown' in all categories among: ]
 * installed packages
[I--] [  ] dev-java/blackdown-jdk-1.4.2.02 (1.4.2)
[I--] [  ] dev-java/blackdown-jre-1.4.2.02 (1.4.2)


Directory contents:
Code:

[axion|java>ls
BangPopApp.class  BangPopApp.java


CLASSPATH value:
Code:

[axion|java>echo $CLASSPATH
.


Try 1:
Code:

[axion|java>java BangPopApp.class
Exception in thread "main" java.lang.NoClassDefFoundError: BangPopApp/class


Try 2:
Code:

[axion|java>java -classpath "." BangPopApp.class
Exception in thread "main" java.lang.NoClassDefFoundError: BangPopApp/class


Try 3:
Code:

[axion|java>java -classpath `pwd` BangPopApp.class
Exception in thread "main" java.lang.NoClassDefFoundError: BangPopApp/class


What do I need to do? Thanks
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Genone
Retired Dev
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Joined: 14 Mar 2003
Posts: 9011
Location: beyond the rim

PostPosted: Thu Oct 27, 2005 10:15 am    Post subject: Reply with quote

Simply omit the .class extension (you have to specify the classname, not the filename).
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Axion
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Joined: 13 Jan 2003
Posts: 8

PostPosted: Thu Oct 27, 2005 10:23 am    Post subject: Reply with quote

Thank you...with sun java I didn't have this problem. I figured it was something stupid :D
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