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Old March 20th, 2007, 01:46 PM
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Default JDK 5 (help please)

hi! this is my problem (i'm new on this) :)

i've JDK 5.11 installed already on my PC

and i did this to config. ->

1. i've went to My Computer>Prop..>advance opt..>Enviroment. var.>
and set the PATH in "C:\Develop\Java\jdk1.5.0_02\bin;%path%" that's where JDK has been installed
2. in System Variables.. CLASSPATH "C:\Develop\Java\jdk1.5.0_02\lib\tools.jar"

that's alright?

i use JCreator and works fine

my problem is when i try to use command line, where i can compiling but not execute

i mean
C:\javac MyProgram.java -> "works properly.."

C:\java MyProgram -> doesn't work says

Exception in thread "main" java.lang.NoClassDefFoundError: first

what kind of error is that and what can i do?


chicos ayuda por favor

Old March 26th, 2007, 11:14 PM
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Check whether you've any package structure for your class, if Yes the check whether the class file is in class path, you've to use javac -d option to compile and place the class file in correct directory.

Old January 5th, 2008, 04:46 AM
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otherwise add '.;' to CLASSPATH
ie. CLASSPATH ".;C:\Develop\Java\jdk1.5.0_02\lib\tools.jar"


Once you start a working on something,
dont be afraid of failure and dont abandon it.
People who work sincerely are the happiest.

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