C# inheritance | inheritance in c# | inheritance c# - c# - c# tutorial - c# net



What is inheritance in C# ?

  • In C#, inheritance is a process in which one object acquires all the properties and behaviors of its parent object automatically.
  • In such way, you can reuse, extend or modify the attributes and behaviors which is defined in other class.
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  • In C#, the class which inherits the members of another class is called derived class and the class whose members are inherited is called base class.
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  • The derived class is the specialized class for the base class.
inheritance

Inheritance

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Advantage of C# Inheritance

Code reusability:

  • Now you can reuse the members of your parent class. So, there is no need to define the member again. So less code is required in the class.

C# Single Level Inheritance Example: Inheriting Fields

  • When one class inherits another class, it is known as single level inheritance.
  • Let's see the example of single level inheritance which inherits the fields only.
 using System;  

   public class Employee  

   {  

       public float salary = 40000;  
   }  

   public class Programmer: Employee  

   {  

      public float bonus = 10000;
  
   }  

   class TestInheritance{ 
 
       public static void Main(string[] args)  

        {  

           Programmer p1 = new Programmer();  
  
           Console.WriteLine("Salary: " + p1.salary);  
            
Console.WriteLine("Bonus: " + p1.bonus);  
  
        }  
    }  
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C# examples - Output :

Salary: 40000
Bonus: 10000
  • In the above example, Employee is the base class and Programmer is the derived class.

C# Single Level Inheritance Example: Inheriting Methods

  • Let's see another example of inheritance in C# which inherits methods only.
 using System;  

   public class Animal  

{  

       public void eat() { Console.WriteLine("Eating..."); }  

   }  

   public class Dog: Animal 
 
   {  

       public void bark() { Console.WriteLine("Barking..."); }  

   }  

   class TestInheritance2{  

       public static void Main(string[] args)  

        {  

            Dog d1 = new Dog();  

            d1.eat();  

            d1.bark();  

        }  
    }  
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C# examples - Output :

Eating...
Barking...

C# Multi Level Inheritance Example

  • When one class inherits another class which is further inherited by another class, it is known as multi level inheritance in C#.
  • Inheritance is transitive so the last derived class acquires all the members of all its base classes.
  • Let's see the example of multi level inheritance in C#.
c# inheritance

c# Inheritance

using System;  

   public class Animal  

    {  

       public void eat() { Console.WriteLine("Eating..."); }  

   }  

   public class Dog: Animal  

   {  

       public void bark() { Console.WriteLine("Barking..."); }  

   }  

   public class BabyDog : Dog  

   {  

       public void weep() { Console.WriteLine("Weeping..."); }  
   }  

   class TestInheritance2{  

       public static void Main(string[] args)  

        {  

            BabyDog d1 = new BabyDog();  

            d1.eat();  

            d1.bark();  

            d1.weep();  
        }  
    }  
click below button to copy the code. By - c# tutorial - team

C# examples - Output :

Eating...
Barking...
Weeping...

c# public protected private access specifiers :

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