Exception in thread "main" !!!

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Thread: Exception in thread "main" !!!

  1. #1
    Join Date
    Jan 2006

    Exception in thread "main" !!!

    Hi guys, i am very new to Java aswell as to this forum this is my first post.

    I hope someone can help me here.

    when trying to run a simple HelloWorld program i get an error

    exception in thread "main" java.lang.NoClassDefFoundError: HelloWorld

    javac HelloWorld.java works fine, it compiles
    but java HelloWorld doesnt run what can i do to fix this?

    I've put HelloWorld.java and HelloWorld.class in C:\Tests, and i run it from that directory using Notepad++

    any help would be welcome.

    oh and i forgot this problem started after i installed Quicktime.

  2. #2
    Join Date
    Nov 2004
    I can't see how quicktime can be the culprit here (having messed up the path to the java/javac ?) cause the error message is from the Java VM. You should post your code here (I am betting on a typo or package error... ).
    eschew obfuscation

  3. #3
    Join Date
    Dec 2005
    The most reasonable solution is to set classpath correctly.
    You can also use IDE,for example jcreator LE(free) to execute.

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