Override hashCode method

[MaheshS Kumbhar]

If we dont override the hashCode method then how the objects are stored inside HashSet and will all the objects inside HashSet have the same hashCode?

[Henry Wong]

MaheshS Kumbhar wrote:If we dont override the hashCode method then how the objects are stored inside HashSet and will all the objects inside HashSet have the same hashCode?

If you don't override the hashcode, the hashcode method from the Object class will be used, which returns the identity hashcode -- and if you overridden equals() (but not hashcode), then depending on what you did, you can corrupt the HashSet.

Henry