class derived_class _name :visibility _mode base_class _name
{
// members of derivedclass
};

class derived_class_name :visibility _mode base_
class name
{
// members of derived class
};

(i) Single Inheritance
(ii) Multiple Inheritance
(iii) Multilevel Inheritance
(iv) Hierarchical Inheritance
(v) Hybrid Inheritance

The derived class is a power packed class, as it can add additional attributes and methods and thus enhance its functionality.

A class that is used as the basis for inheritance is called a superclass or base class.

Inheritance is one of the most important features of Object Oriented Programming. In object- oriented programming, inheritance enables new class and its objects to take on the properties of the existing classes.

(i) Private inheritance should be used when you want the features of the base class to be available to the derived class but not to the classes that are derived from the derived class.
(ii) Protected inheritance should be used when features of base class to be available only to the derived class members but not to the outside world.
(iii) Public inheritance can be used when features of base class to be available the derived class members and also to the outside world.

(i) Inheritance is an important feature of object oriented programming used for code reusability. It is a process of creating new classes called derived classes, from the existing or base classes.
(ii) Inheritance allows us to inherit all the code (except declared as private) of one class to another class. The class to be inherited is called base class or parent class and the class which inherits the other class is called derived class or child class.
(iii) The derived class is a power packed class, as it can add additional attributes and methods and thus enhan e its functionality.

When a derived class member function has the same name as that of its base class member function, the derived class member function shadows/hides the base class's inherited function. This situation is called function overriding.

The following points should be observed for defining the derived class:
(i) The keyword class has to be used.
(ii) The name of the derived class is to be given after the keyword class.
(iii) A single colon.
(iv) The type of derivation (the visibility mode), namely private, public or protected. If no visibility mode is specified, then by default the visibility mode is considered as private.
(v) The names of all base classes (parent classes) separated by comma.

I am class A
I am class B
x = 30
y = 20
Bye
Bye
Bye

Multiple Inheritance

Types of Inheritance
There are different types of inheritance viz., Single inheritance, Multiple inheritance, Multilevel inheritance, hybrid inheritance and hierarchical inheritance.
1. Single Inheritance: When a derived class inherits only from one base class, it is known as single inheritance.
2. Multiple Inheritance: When a derived class inherits from multiple base classes it is known as multiple inheritance.
3. Hierarchical inheritance: When more than one derived classes are created from a single base class, it is known as Hierarchical inheritance.
4. Multilevel Inheritance: The transitive nature of inheritance is itself reflected by this form of inheritance. When a class is derived from a class which is a derived class - then it is referred to as multilevel inheritance.
5. Hybrid inheritance: When there is a combination of more than one type of inheritance, it is known as hybrid inheritance. Hence, it may be a combination of Multilevel and Multiple inheritance or Hierarchical and Multilevel inheritance or Hierarchical, Multilevel and Multiple inheritance.