null is nothing but internal Pointer with value zero. So it is comparing two references having value zero. In fact object. ReferenceEquals(null, null) is always true because of this fact so you do not need the second check.
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println(“(Object)string == number: ” + ((Object)string == number)); To conclude this post and answer the titular question Does null equal null in Java? the answer is a simple yes .31 Eki 2018
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