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Invoke a Method with primitive arguments through Reflection

 
Greenhorn
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How can I invoke a method on a given Object which accepts primitive value arguments through Reflection.
 
Ranch Hand
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Here's a simple example which, assuming I've made no silly typos, demostrates calling a method with a primitive arg and return value:

 
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Here is a little reflection toy called Interpreter. The Argument class has some examples of wrapping primitives with real classes. See how Interpreter gets a method and invokes it.
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