C # similarities and differences between abstract classes and Virtual Methods of polymorphism ~,

C # similarities and differences between abstract classes and Virtual Methods of polymorphism ~,

The similarities and differences between abstract classes of polymorphism and Virtual Methods:

Differences

1. Different method keywords

The keyword of the virtual method is virtual.

Abstract class method keywords: abstract

2. Does the base class method have a method body/implementation?

Virtual method: declare and implement the method.

Abstract class method: it is declared only and has no method body or implementation.

Commonalities

1. Subclass/derived class override the parent class method: keyword overcode

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