Overloading: When a single Object has multiple behaviors. Then it is called as Overloading. Overloading is that in which a Single Object has a same name and Provides Many Functions. In Overloading followings things denotes Overloading:-

Early Binding:Early Binding Always Occur in the Polymorphism, when we pass the Reference of a sub Class into .the Pointer Object of Base Class, then the Member Functions Are never to be Override. When we execute the Program then Compiler knows this thing. This is called as Early Binding. And the Compiler will Execute the Member Functions of Base Class and this will never overrides the Body of the Sub Class Member Function. This is known as the early binding.

Access Modifiers :- These are also Called as Access Visibility Controls  means they defined where a method and Data Member of class will be used either inside a  class ,outside a class ,in inherited class or in main Method They Tells us the Scope of Methods where they would be used Various types of Access Modifiers  are as follows:-

In the Hierarchical Inheritance, when we use The Same Data Member in the Sub Class Then the Data Member will Contains the Many values So that here Data Member will be Ambiguous Because a Single Data Member have two or more values.

Friend classes are used when two or more classes are designed to work together and need access to each other's implementation in ways that the rest of the world shouldn't be allowed to have. In other words, they help keep private things private. For instance, it may be desirable for class DatabaseCursor to have more privilege to the internals of class Database than main() has.