Can you have a class in a class?

It is a user-defined data type, which holds its own data members and member functions, which can be accessed and used by creating an instance of that class . A C++ class is like a blueprint for an object. For Example: Consider the Class of Cars.

A nested class is declared within the scope of another class . The name of a nested class is local to its enclosing class.

In Java, it is possible to define a class within another class , such classes are known as nested classes. They enable you to logically group classes that are only used in one place, thus this increases the use of encapsulation, and creates more readable and maintainable code.