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where such questions come from to avoid copyright problems.
What was the answer given? 2?
You are getting confused about the difference between a reference and an object. I can see two objects, each being an array. Each of the two references you wrote points to one object, each an array.
The code shown doesn't enter any objects into the String[], so its solitary element is a reference pointing to
null. So there is no String object to delete. The solitary element in the
int[] is 0 as a default, but that isn't an object.