Question

Take this example:

public class foo
{
    public int[] func()
    {
        int arr[] = new int[3];
        // here initialised the array

        return arr;
    }
}

I’m not experienced with Java, but I know a little of C/C++.

Answer 1

Yes, it’s completely OK, because garbage collection is done when there is no further reference to the object. You can also find the array size by using length inside (arr.length) or outside (e.g. aFoo.func().length) the method.