Test of equality (equals and hash code method)

Question

As per the below link

Hashcode and equals

So it is assumed that if 2 objects are equal (that is, equals() returns true), then their hashCodes() must retu

Answer 1

You should never implement hashCode using random numbers! It should always be computed using the same fields as equals uses. Otherwise, your objects will be unusable as keys in HashMap, HashSet, etc.