c# : Inheritance Polymorphism : Part 7

Inheritance

• It is generally used when the codes in the class are mostly common.
• Same code in two class should be removed and formed as third class.
• The uncommon code will remain as it is in previous two class and these two class will be inherited from the third class
• Thus all the functions and the properties in third class will be available in first two class.

Polymorphism

• Single object has many forms, one name many forms

e.g.

• Teachers behaves with student
• Teachers behaves with senior
• Teacher, here has different attitude

Static / Compile time polymorphism

• If a class has two method with same name with different types of passed parameters, than the method to be invoke depends on compile time.
• Method overloading can be an example of static polymorphism

Dynamic / runtime polymorphism

• Over riding the method of a base class in the derived class which is done at run time is called dynamic polymorphism.
• Method overriding can be an example of dynamic polymorphism.