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C# Programming
Learn C# fundamentals, OOP, LINQ, collections, asynchronous programming and advanced concepts.
C# fundamentals
Delegates, Events and Lambda Expressions
A lambda expression is a short way to write an anonymous function. These concepts are widely used in callbacks, UI applications, notifications and asynchronous programming.
C# fundamentals
LINQ in C# – Filtering, Sorting and Querying Data
LINQ stands for Language Integrated Query. It helps us search, filter, sort and transform data directly in C# code. Instead of writing lengthy loops, we can use readable methods like Where(), OrderBy() and Select(). LINQ is commonly used with lists, arrays, databases and application data.
C# fundamentals
Generics in C# – Writing Reusable Code
Generics allow us to write reusable code that works with different data types. Instead of creating separate classes or methods for integers, strings and other types, we can use one generic implementation. Generics provide type safety, reduce duplicate code and avoid unnecessary type conversions. They are widely used in collections, repositories, APIs and enterprise applications.
C# fundamentals
Collections in C# – List, Dictionary, HashSet and Queue
Collections store and manage groups of objects. Unlike arrays, many collections can grow or shrink dynamically. C# provides different collection types for different requirements. We will explore List, Dictionary, HashSet and Queue. These are commonly used in APIs, shopping applications, banking systems and enterprise software.
C# fundamentals
Interfaces and Abstract Classes in C#
Both help us define common behaviour for different classes. An interface defines a contract that a class must follow. An abstract class can provide both common code and methods that child classes must implement. These concepts are widely used in enterprise applications, payment systems, dependency injection and API development.
C# fundamentals
Encapsulation and Abstraction Explained
Abstraction hides internal complexity and exposes only what users need. We use these principles in banking, payment applications, APIs and enterprise systems.
C# fundamentals
Inheritance and Polymorphism in C#
Inheritance allows one class to reuse another class's properties and methods. Polymorphism means one method can behave differently depending on the object. These concepts help us build reusable and flexible applications. We use them in payment systems, banking applications, APIs and enterprise software.
C# fundamentals
Constructors, Properties and Access Modifiers
Access modifiers define where classes and their members can be accessed. These concepts help us build secure, reusable and well-organised applications. They are widely used in enterprise applications, Web APIs and object-oriented programming.
C# fundamentals
Classes and Objects in C#
Individual employees become objects. This concept is part of Object-Oriented Programming (OOP), a programming approach that organises applications around objects. We use it to build reusable and maintainable applications.