equals() without hashCode()

Question

Can I only implement equals() but not hashCode() if I only need to compare objects and not yet plan to put the objects into any hash based containers?

Seems all Jav

Answer 1

Oracle's tutorial answers this

The hashCode() Method

By definition, if two objects are equal, their hash code must also be equal. If you override the equals() method, you change the way two objects are equated and Object's implementation of hashCode() is no longer valid. Therefore, if you override the equals() method, you must also override the hashCode() method as well.