Showing posts from July, 2023
A class is a LOGICAL UNIT or BLUEPRINT. It contains fields, methods and properties. Object - An object is an INSTANCE of a class. In object-oriented programming (OOP), classes and objects are fundamental concepts that allow you to model real-world…
Classes are the building blocks of object-oriented programming (OOP). They are used to define objects and their behaviors. There are several types of classes in C#: Regular Classes: Regular classes are the most common type of classes in C#. They can h…
Object-Oriented Programming is a programming paradigm based on the concept of "objects", which can contain data and code. The data is in the form of fields, and the code is in the form of procedures. A common feature of objects is that pro…
Yes, it is possible to prevent object creation of a class in C# by using private constructors or static classes. Private Constructors: By declaring a private constructor in a class, you prevent other classes from creating instances of that class using…
Property is a specialized function only. Specialized means properties are used only to get and set field values. Properties and functions are both fundamental components of object-oriented programming (OOP), but they serve different purposes and have …
Namespaces are a fundamental concept in C# (and many other programming languages) that provide a way to organize and group related code elements such as classes, structs, interfaces, enums, and delegates. Namespaces help prevent naming conflicts and…
Inheritance is creating a PARENT-CHILD relationship between two classes, where child class will automatically get the properties and methods of the parent. Inheritance is good for: REUSABILITY and ABSTRACTION of code Inheritance is a fundamental conce…
In C#, you can implement inheritance using the : (colon) symbol to denote the inheritance relationship between classes. Here are the different types of inheritance that you can use in C#: Single Inheritance: C# supports single inheritance, where a …
No, C# does not support multiple inheritance in the traditional sense, where a class can directly inherit from multiple base classes. This means a C# class can only have a single direct base class. C# support inheritance by using multiple Interfaces. …
Abstraction means showing only required things and hide the BACKGROUND details.Encapsulation means WRAPPING of data and methods into a single unit. Abstraction and Encapsulation are two important concepts in object-oriented programming (OOP), and th…
Polymorphism is the ability of a variable, object, or function to take on MULTIPLE FORMS . Polymorphism, is the ability of a variable, object, or function to take on multiple forms. It allows different entities (variables, objects, or functions) to …
Method overloading is a type of polymorphism in which we can create multiple methods of the same name in the same class, and all methods work in different ways. Overloading happens when you have two methods with the same name but different signatures …
Method overloading is a powerful technique in object-oriented programming that allows you to provide multiple methods with the same name but different parameters in a class. It can be beneficial and useful in various real-world application scenarios. …
Overloading and overriding are two essential concepts in object-oriented programming. Let's understand the difference between them with examples: Method Overloading (Compile-time Polymorphism): Method overloading allows a class to have multiple…
Overriding is used to modify and provide a new implementation of the method inherited from a base class. Method overriding is a crucial concept in object-oriented programming that allows a derived class to provide a specific implementation for a metho…
NO. Overriding virtual method is optional. If a method is marked as virtual , it is not mandatory to override it in the child class. Marking a method as virtual simply means that the method can be overridden in derived classes, but it is not a requir…
In Method Hiding, you can completely hide the implementation of the methods of a base class from the derived class using the new keyword. Method Overriding and Method Hiding are two different concepts related to polymorphism in object-oriented program…
To summarize, abstract classes allow for a combination of abstract and non-abstract methods, support single inheritance, can have constructors, and can define access modifiers for members. On the other hand, interfaces only have abstract methods…
Abstract class is a good choice when you are sure some methods are concrete/defined and must be implemented in the SAME WAY in all derived classes. Normally we prefer Interface because it gives us the flexibility to modify the behavior at later stage.…
Benefits of Interfaces: Help in defining the contract of the system. Unit testing is easy in application having interfaces. Used for implementing dependency injection. Abstraction and Loose Coupling: Interfaces allow you to abstract the behavior of c…
Yes, you can define the body of an interface method in C# 8.0. This is known as a default interface method . Default interface methods allow you to provide a default implementation for a method in an interface, so that classes that implement the inter…
