Are two Java objects with same hashcodes not necessarily equal?

Question

I understand why providing same hashcode for two equal (through equals) objects is important. But is the vice versa true as well, if two objects have same hash

Answer 1

As a matter of fact

public int hashCode(){
    return 1;
}

Is a valid hashcode implementation...but a terrible one. Will make all your hashtables slow. But yes, you can have two different objects with the same hashcode. But that should not be the general case, a real implementation should give different hashcodes for different values most of the time.