Calling super.equals and super.hashCode in child class?
equals, hashcode, java
Solution
No, that's not necessary, and would probably be wrong. Indeed, part of the reason why you're overriding `equal` is because `super.equals` doesn't give the correct behaviour (right?).
Or put another way, if `super.equals` gives the correct behaviour, you probably don't need to go to the trouble of overriding it.
But if you are overriding `equals`, then yes, you need to override `hashCode`, too.
Problem
If I implement `equals()` and `hashCode()` in both the parent and child classes, is it necessary to call `super.equals()` in `equals()` in the child class, e.g. ``` public boolean equals(Object obj) { if (obj.getClass() != ChildClass.class) { return false; } return super.equals() && this.var == ((ChildClass) obj).var; } ``` I am assuming that the parent class is not Object and is giving the correct definition of equals and hashCode.