java - in which cases equals() is similar to ==? -

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possible duplicate:
difference between equals , ==

in cases equals() works == operator?

it seems both act similar primitive data types. there other cases in both of them act equal?

== compares bits of reference object type if have reference same object case

for example

integer value -128 , 127 (inclusive) caches (while autoboxing) instance case here mentioned range of value of integer


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