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equals() instanceof check? Check. null check also?

 
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I've started OCP...

Sarbox..no, wait...Sybex wrote:equals() should return false when the object it passed in is not equal to the current object.  This includes null and incorrect types.


Got it.  Makes sense.  

What I don't understand is:

Sybex wrote:An equals() method should have a null check and an instanceof check.


Suspenders and a belt?  

Since null instanceof Class already returns false, isn't the null check already satisfied or is there some circumstance I'm missing?
 
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You are correct. Null checks are redundant.
 
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