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Allen Bandela
Ranch Hand

Joined: Feb 16, 2006
Posts: 128

Why do I get this error?
Is it due to the JDK version?
I used JDK1.5. Is'nt Java backward compatible? It executed fine on my machine, but gave me the above error on a different machine. By the way, the exception occured while initializing an applet.
Ernest Friedman-Hill
author and iconoclast

Joined: Jul 08, 2003
Posts: 24199

If you compile with JDK 1.5, by default, the class files will not work with older JDKs. Older class files will work with JDK 1.5. You can use the -target switch to generate code for older JVMs, but then you can't use any nw language features.

Moving to Java in General (Beginner).

[Jess in Action][AskingGoodQuestions]
I agree. Here's the link:
subject: UnsupportedClassVersionError
jQuery in Action, 3rd edition