CBSE Class 12 Computer Science Inheritance Concepts

INHERITANCE

• Inheritance is the process by which new classes called derived classes are created from existing classes called base classes.

• The derived classes have all the features of the base class and the programmer can choose to add new features specific to the newly created derived class.

• The idea of inheritance implements the is a relationship. For example, mammal IS-A animal, dog IS-A mammal hence dog IS-A animal as well and so on.

Features or Advantages of Inheritance:

• Reusability of Code

• Saves Time and Effort

• Faster development, easier maintenance and easy to extend

• Capable of expressing the inheritance relationship and its transitive nature which ensures closeness with real world problems .

Base & Derived Classes:

A class can be derived from more than one classes, which means it can inherit data and functions from multiple base classes. A class derivation list names one or more base classes and has the form:

class derived-class: access-specifier base-class

Where access is one of public, protected, or private.

For example, if the base class is MyClass and the derived class is sample it is specified as:

class sample: public MyClass

The above makes sample have access to both public and protected variables of base class MyClass.

INHERITANCE

· Inheritance is the process by which new classes called derived classes are created from existing classes called base classes.

· The derived classes have all the features of the base class and the programmer can choose to add new features specific to the newly created derived class.

· The idea of inheritance implements the is a relationship. For example, mammal IS-A animal, dog IS-A mammal hence dog IS-A animal as well and so on.

Features or Advantages of Inheritance:

• Reusability of Code

• Saves Time and Effort

• Faster development, easier maintenance and easy to extend

• Capable of expressing the inheritance relationship and its transitive nature which ensures closeness with real world problems .

Base & Derived Classes:

A class can be derived from more than one classes, which means it can inherit data and functions from multiple base classes. A class derivation list names one or more base classes and has the form:

class derived-class: access-specifier base-class

Where access is one of public, protected, or private.

For example, if the base class is MyClass and the derived class is sample it is specified as:

class sample: public MyClass

The above makes sample have access to both public and protected variables of base class MyClass.

Please refer to attached file for CBSE Class 12 Computer Science Inheritance Concepts