.NET

Methods and Functions

Organize your code with reusable blocks

Methods (also called functions) are reusable blocks of code. They help organize your program and avoid repetition. 🛠️ Defining a Method 1 2 3 4 void SayHello() { Console.WriteLine("Hello!"); ...

Posted by Rodrigo Castro on November 1, 2024

Using break, continue, and return

Controlling loops and methods

Sometimes you want to exit a loop early or skip certain steps. C# gives you keywords for this. ⏹️ break Ends the loop immediately. 1 2 3 4 5 6 for (int i = 1; i <= 10; i++) { if (i == 5) ...

Posted by Rodrigo Castro on October 27, 2024

Loops and Iteration: for, while, and foreach

Repeating actions in C#

Loops let your program do something over and over: great for processing lists or repeating tasks. 🔁 for Loop Count a known number of times: 1 2 3 4 for (int i = 1; i <= 5; i++) { Console....

Posted by Rodrigo Castro on October 26, 2024

Conditional Statements: if, else, and switch

Controlling program flow with decisions

Conditional statements let your program react to different situations. ✅ The if Statement 1 2 3 4 5 int score = 75; if (score >= 60) { Console.WriteLine("You passed!"); } 🛤️ The else Blo...

Posted by Rodrigo Castro on October 25, 2024

Control Flow Structures

Making your program smart with decisions and repetition

Control flow lets your program decide what to do next, or repeat actions. 🤔 Conditional Statements If/Else: 1 2 3 4 5 if (score >= 60) { Console.WriteLine("Passed!"); } else { Console....

Posted by Rodrigo Castro on October 20, 2024

Type Conversion and Manipulation

Changing and working with data types in C#

Often, you’ll need to change one type into another. C# gives you ways to do this safely. 🔄 Implicit and Explicit Conversion Implicit: C# does it automatically (no risk of data loss): 1 2 int a = ...

Posted by Rodrigo Castro on October 19, 2024

Arithmetic, Relational, and Logical Operators

Doing math and making decisions

Operators let you work with numbers, compare values, and combine conditions. C# provides a rich set of operators to perform different operations on variables and values. Operators are grouped by th...

Posted by Rodrigo Castro on October 18, 2024

Strong Typing and Type Inference

How C# helps you avoid mistakes

C# is a strongly typed language. This means the compiler checks that you’re using the right types in your code, making it safer and easier to debug. 🔒 What is Strong Typing? Variables must hav...

Posted by Rodrigo Castro on October 13, 2024

Variables, Data Types, and Operators

The building blocks of every C# program

Variables store data your program uses. Each variable has a type that tells C# what kind of data it holds. 📦 Declaring Variables 1 2 3 4 5 int age = 25; // Integer double price = ...

Posted by Rodrigo Castro on October 12, 2024

Differences Between Console and Web Applications

Choosing the right type of app for your project

As a beginner, you’ll often start with console apps. But C# is also used for web applications. What’s the difference? 🖥️ Console Applications Run in the terminal/command prompt. Input and ou...

Posted by Rodrigo Castro on October 11, 2024