Classes in C++

Classes in C++

In C++, classes are created using class keyword. It declares and define a new type which is a combination of code and data.

The declaration of a class is similar to that of declaration of a structure.

A class not inheriting from any other class is declared as:

class class_name {                                                           

private data members and member functions

access specifier:

data and functions

access specifier:

data and functions

.

.

.

} object_list;

The object_list is optional. We can create objects of class in the main() function also.

Example:

class A

      {     int n;

        public:

            void get();

           void show();

       };

void A::get()           //accepting value of n

{     cout<<”Enter value of n:”;

       cin>>n;

}

void A::show()      // displaying value of n

{ cout<<”Value of n is:”<<n;

}

int main()

{      A a;             //Object of class A is created

       a.get();

     a.show();

}

OUTPUT:

Enter value of n:6

Value of n is:6