Question : Java small object size

Could some one give a rough estimation how big size could be for small object.

Person{
    int name;
    int age;
}

Female extends Person{
    boolean: isMarried
}

Male extends Person {

   SomebusinessMethod{
      Some objects creation. execution

   }
}


1) How rough size of a Person?
2) If females and male is created, since male has many business logic, does male object would be larger than female
3) I want to know a) how is overhead size of an object?
                             b) is some object has more business logic, instance creation, takes more memory than a simple object?

Answer : Java small object size

1) ~ 10-20 bytes
2) no, methods are part of the class not the instances
3a) ~ 10 bytes I think
3b) see 2.