A class can be declared within the scope of another class. Such a class is called a "nested class." Nested classes are considered to be within the scope of the enclosing class and are available for use within that scope.

How do you declare a class in another class?

They are accessed using the enclosing class name. To instantiate an inner class, you must first instantiate the outer class. Then, create the inner object within the outer object with this syntax: OuterClass.

Can a class be defined inside another class in C++?

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