inheritance

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Please mujy c# me inheritance or polymorphism bata de

Sudarshan Hajare · Answer

Inheritance — "borrowing from a parent" Inheritance means one class can reuse the properties and methods of another class, instead of writing everything from scratch. Think of it like this: a Car and a Bike are both Vehicle s. They both have a speed, both can start, both can stop. Instead of writing that logic twice, you write it once in a Vehicle class, and let Car and Bike "inherit" it. public class Employee { public string Name { get; set; } public decimal BaseSalary { get; set; } public void ShowDetails() { Console.WriteLine($"{Name} earns {BaseSalary}"); } } public class Manager : Employee // Manager inherits from Employee { public decimal TeamBonus { get; set; } } Now Manager automatically gets Name , BaseSalary , and ShowDetails() — you didn't write them again. You just added the extra thing a Manager has ( TeamBonus ). Polymorphism — "same call, different behavior" Polymorphism means you can call the same method name on different objects, and each one behaves in its own way — the calling code doesn't need to know which exact type it's dealing with. public class Employee { public virtual void ShowDetails() { Console.WriteLine("I am an employee"); } } public class Manager : Employee { public override void ShowDetails() { Console.WriteLine("I am a manager, I lead a team"); } } public class Developer : Employee { public override void ShowDetails() { Console.WriteLine("I am a developer, I write code"); } } Now watch this: List staff = new List { new Manager(), new Developer() }; foreach (var person in staff) { person.ShowDetails(); // same method call... } Output: I am a manager, I lead a team I am a developer, I write code Same line of code — person.ShowDetails() — but it behaves differently depending on whether the actual object is a Manager or a Developer . That's polymorphism — "many forms" of the same action. The simplest way to remember the difference Concept In one line Inheritance "I get what my parent has, plus my own stuff." Polymorphism "Same instruction, different result, depending on who's doing it."

Cynthia Sathuragiri · Answer

Inheritance Inheritance allows one class to inherit properties and methods from another class. It helps with: Code reuse Cleaner structure Reducing duplication class Parent { public void Show() { Console.WriteLine("Parent class method"); } } class Child : Parent { public void Display() { Console.WriteLine("Child class method"); } } Child obj = new Child(); obj.Show(); // Inherited from Parent obj.Display(); // Child’s own method Child : Parent ? Child inherits Parent. Child automatically gets access to Parent’s public methods. Polymorphism Polymorphism means "many forms." A method can behave differently depending on how it is used. In C#, there are two main types: Compile-time Polymorphism (Method Overloading) Run-time Polymorphism (Method Overriding) Method Overloading (Compile-Time) Same method name, but different parameters. class Calculator { public int Add(int a, int b) { return a + b; } public int Add(int a, int b, int c) { return a + b + c; } } The method name is the same ( Add ) Parameters are different The compiler decides which one to call Method Overriding (Run-Time) A child class changes the behavior of a parent class method. class Animal { public virtual void Sound() { Console.WriteLine("Animal makes sound"); } } class Dog : Animal { public override void Sound() { Console.WriteLine("Dog barks"); } } Animal obj = new Dog(); obj.Sound(); Output: Dog barks virtual ? Allows the method to be overridden override ? Replaces the base method The decision happens at runtime

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