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K&B page398

 
Cathy Song
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Result: 1101
Can someone please explain how line 9,10 are true?
Thanks.
 
Cathy Song
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I found the answer in the API

The equals method for class Object implements the most discriminating possible equivalence relation on objects; that is, for any non-null reference values x and y, this method returns true if and only if x and y refer to the same object (x == y has the value true).

Thanks
 
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