In C++, inheritance is a process in which one object acquires all the properties and behaviors of its parent object automatically. In such way, you can reuse, extend or modify the attributes and behaviors which are defined in other class.
In C++, the class which inherits the members of another class is called derived class and the class whose members are inherited is called base class. The derived class is the specialized class for the base class.

Code reusability:-Now you can reuse the members of your parent class. So, there is no need to define the member again. So less code is required in the class.

• Single inheritance
• Multiple inheritance
• Hierarchical inheritance
• Multilevel inheritance
• Hybrid inheritance

class derived_class_name :: visibility-mode base_class_name
{
// body of the derived class.
}

Single inheritance is defined as the inheritance in which a derived class is inherited from the only one base class.

Multilevel inheritance is a process of deriving a class from another derived class.

Multiple inheritance is the process of deriving a new class that inherits the attributes from two or more classes.

Hybrid inheritance is a combination of more than one type of inheritance.

Hierarchical inheritance is defined as the process of deriving more than one class from a base class.