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5.0

argv[0] in Java (again)

Asked by bcladd in Java Programming Language, New to Java Programming

Tags: java, reflection

Okay, in main (which is a static function) I would like to know the class used when java was run:

% java SomeMightyClass more and interesting parameters

The args array contains the more and interesting parameters but I don't have access to the string "SomeMightyClass".

Reason: I want to write a silly library that provides its own main function that instantiates an object of the given class (without requiring the client to write their own main). Started out as a simple exercise and now I am beating my head against this.

I know Class's getName method would work if I had an object of the approriate type...chicken needs an egg.
I can KNOW the class containing main (I am writing it). I can also get it from a stack trace...no additional information from the stack trace that I can find.
Reflection permits questions about an OBJECT's type to be asked and answered...chicken still needs an egg.

Okay, that summarizes what I know.

Thanks in advance for any assistance you can provide.
-bcl

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20091111-EE-VQP-92

argv[0] in Java (again)

Asked by bcladd in Java Programming Language, New to Java Programming

Tags: java, reflection

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