java - How to call MethodInvoke - reflection

Question

If i have a method which takes a int[] as a parameter and i wish to call method.invoke on this then do i need to do the following

Object[] anArray = {100, 200, 300, 400, 500, 600, 700, 800, 900, 1000};
method.invoke(obj, anArray);

Is it as simple as that as i seem to be getting errors?

Regards

Answer 1

Method.invoke takes two arguments. The first is the target, obj, which is correct. The second is an array representing zero or more arguments for the actual method you are trying to invoke (many methods have more than one parameter). Your code should change to:

method.invoke(obj, new Object[] { anArray });

This way, you're saying "invoke this method with one argument, and that argument is an array. This is different from saying, "invoke this method with 10 arguments" (one for each element in your array).