Iterating over arrays by reflection

Question

I am doing some reflection work and go to a little problem.

I am trying to print objects to some GUI tree and have problem detecting arrays in a generic way.

Answer 1

First of all, @Bozho's answer is perfectly correct.

If you want to make this to be easier useable, I've just created a method in our little OSS utility molindo-utils that turns an array of unknown type into an Iterable: ArrayUtils.toIterable(Object)

This way, you can do:

// any array, e.g. int[], Object[], String[], ...
Object array = ...;
for (Object element : ArrayUtils.toIterable(array)) {
    // element of type Integer for int[]
    System.out.println(element);
}

See README of molindo-utils on how to get molindo-utils or feel free to copy the code if you like, just as you see fit.