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C# - Difference b/w Compile Time Polymorphism and Runtime Polymorphism with Example

Sep 18, 2013

Here I will explain difference between compile time polymorphism and runtime polymorphism in with example or compile time vs. runtime polymorphism with example. 



Polymorphism means many forms (ability to take more than one form). In Polymorphism poly means “multiple” and morph means “forms” so polymorphism means many forms.

In polymorphism we will declare methods with same name and different parameters in same class or methods with same name and same parameters in different classes. Polymorphism has ability to provide different implementation of methods that are implemented with same name.

In Polymorphism we have 2 different types those are

     -  Compile Time Polymorphism (Called as Early Binding or Overloading or static binding)

     -  Run Time Polymorphism (Called as Late Binding or Overriding or dynamic binding)

Compile Time Polymorphism

Compile time polymorphism means we will declare methods with same name but different signatures because of this we will perform different tasks with same method name. This compile time polymorphism also called as early binding or method overloading.

Method Overloading or compile time polymorphism means same method names with different signatures (different parameters)

For more details check this link polymorphism in c#

Run Time Polymorphism

Run time polymorphism also called as late binding or method overriding or dynamic polymorphism. Run time polymorphism or method overriding means same method names with same signatures.

In this run time polymorphism or method overriding we can override a method in base class by creating similar function in derived class this can be achieved by using inheritance principle and using “virtual & override” keywords.

For more details check this link polymorphism in c#

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Anonymous said...

What is Strongly Type and What is Loosely Type ? said...

Yes, please, explain about the Strongly and Loosely type or please provide a useful source. Thanks!

Anonymous said...

Bit helpful

Unknown said...

Thank you ..It helped a lot 👍

Anonymous said...

wow very nice

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