Windows xp and Java SDK

Hey
I just got a new computer with Windows XP on it and I installed Java SDK on it. I can compile my programs but I can't run them i get this:
Exception in thread "main" java.lang.NoClassDefFoundError: hate
even though there is a .class file. I was wondering if anybody have the same problem?
Thanks

Do a "echo %CLASSPATH%" at the DOS prompt...You should see the directory in which you installed Java...
Example:
CLASSPATH=c:\j2sdk1.4.1;.; where (".") = the current directory.
Your JVM cannot find the class file because you have not set the CLASSPATH enviroment variable. Your PATH enviroment variable sounds like it is ok because your OS(Windows, etc) is able to find the java, javac, jar, etc commmands.
Hope this helps.

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at java.lang.Class.newInstance(Unknown Source)
at sun.applet.AppletPanel.createApplet(Unknown Source)
at sun.plugin.AppletViewer.createApplet(Unknown Source)
at sun.applet.AppletPanel.runLoader(Unknown Source)
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