129
Say I have my own class
public class MyObj { /* ... */ }
It has some attributes and methods. It DOES NOT implement equals, DOES NOT implement hashCode.
Once we call equals and hashCode, what are the default implementations? From Object class? And what are they? How the default equals will work? How the default hashCode will work and what will return? == will just check if they reference to the same object, so it's easy, but what about equals() and hashCode() methods?