equals() method and == operator

[Nesan Krish]

Head first EJB book page 292 question 6: According to basic Java rules if two objects are equals(), they are similar, identical but may not be the same. If two objects are == then they are same. Am I correct? Then the answer for this question should be A. Am I missing something? Please help! Thank you very much.
[ March 07, 2004: Message edited by: Nesan Krish ]

[Janne Karhu]

If object1 == object2 returns true, they reference to the same object. But if object1 == object2 returns false, the objects may still refer to the same entity (i.e. the primary key objects contain the same data which implies that equals-method returns true).
Thus, only B is correct.

[Nesan Krish]

Does this mean that two seperate primary keys can point one entity?

[Maulin Vasavada]

Hi Nesan,

Does this mean that two seperate primary keys can point one entity?

No. It means there are two objects holding same PK hence pointing to the same entity.
Regards
Maulin

[Maulin Vasavada]

also, can you post the question if its not big? I dont have the book.