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Possible Duplicate:
Difference Between Equals and ==
in which cases equals() works exactly like == operator?
It seems that they both act similar for primitive data types. Are there any other cases in which both of them act equal?
==compares the bits of reference forObjecttype so if you have reference to same Object it would be the caseFor example
Integerfor value -128 and 127 (inclusive) it caches (while autoboxing) the instance so it would be the case here for the mentioned range of value ofInteger