Kishan Kumar
Stop Using NULLs: Why It Is The Billion Dollar Mistake (And How To Fix It)
Learn why Tony Hoare called NULL the billion dollar mistake. Discover how to write cleaner code using the Null Object Pattern, Optional types, and Fail Fast principles.
13 min read
Null Object PatternClean CodeSoftware Architecture
Kishan Kumar
What Is a Delegate in C#? A Beginner's Guide With Real Examples
Learn C# delegates from scratch: what they are, how to declare and invoke them, multicast chaining, and when to use Func vs Action. With real examples.
9 min read
C# delegatesCallback FunctionsFunc vs Action
Kishan Kumar
Static Classes in C#: A Complete Beginner-to-Pro Guide
Learn static classes in C# with real-world examples. Understand when to use them, common pitfalls, DI issues, and best practices for clean code.
12 min read
static class in c#c# interview questionsstatic constructor c#
Kishan Kumar
Understanding Events in C#: From Basics to Real-World Usage
Learn C# events step by step with real-world examples. Understand how events work, why they matter, and how to use them cleanly in real applications.
11 min read
c# eventsevent-driven programmingeventhandler in c#