Answer Posted / abhijeet

Hi,
I am giving you a collective answer. Yes you can use any
object as key in hashmap. But if you r sure that u will be
using diferent objects as key then u dont ve to overide
anything. But if you are going to use same object as key
then you need to override hashcode and equals method. Be
sure that your equals method returns false if you need to
use the object as key.

But this is tricky 1 and in live enviroment its not needed :-)
only for interview to impress interviewwer :-)

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