This video will give you Information on Abstract Class and Methods in Oops Inheritance For Complete C# Online Training Please visit:
Abstract Classes and Methods
1. An abstract method is a method in which declaration is provided but implementation is not.
2. A class with one or more methods declared as abstract must be declared as abstract and such a class cannot
be instantiated because its behavior is incomplete.
3. A class that inherits the abstract class must override all the abstract members of the parent class, if not it
should also be declared as abstract. Abstract = Pure Virtual
4. A class can be declared as abstract even without an abstract member and such a class cannot be instantiated.
5. A class which is not abstract is called as Concrete Class. (concrete is not a keyword)
6. An abstract class can have all types of members which a concrete class can have including constructor,
destructor, static members etc…(additionally it can have abstract members which a concrete class cannot
have)
7. A sealed class cannot have abstract methods.
Create a New Console Application and add the following code to the various files added to that project
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