C# Mastery

A collection of C# learning projects demonstrating fundamental programming concepts and practical applications.

📚 Resources

For a comprehensive guide and detailed explanations, check out the Complete Guide to C# Mastery.

📋 Projects Overview

1. SyntaxAndDataTypes

Concepts Covered:

• Variable declaration and naming conventions
• C# data types (value types and reference types)
• Scope and lifetime of variables
• Using statements and namespaces
• Interfaces (IUser)
• User-defined types
• Operators

Key Files:

• Program.cs - Main demonstrations of syntax and data types
• User.cs - Custom user class
• IUser.cs - User interface abstraction
• Operators.cs - Operator demonstrations

2. ConditionalsAndControlFlow

Concepts Covered:

• If-else statements
• Nested conditionals
• Multi-condition logic
• Control flow patterns
• Boolean logic

Key Files:

• Program.cs - Conditional statements and control flow examples
• Activities01.cs - Practice activities

Examples:

• Age verification
• Grade calculation system
• Driver license validation

3. SimpleCalculator

Description: A console-based calculator that performs basic arithmetic operations.

Features:

• Addition, subtraction, multiplication, and division
• Input validation using TryParse
• User-friendly console interface

4. LeapYearChecker

Description: A program that determines if a given year is a leap year.

Logic:

• Divisible by 4 and 100, OR
• Not divisible by 400

Features:

• Input validation
• Clear user feedback
• Handles invalid input gracefully

5. NumberGuessingGame

Description: An interactive number guessing game where the player tries to guess a randomly generated number.

Features:

• Random number generation (1-100)
• User hints (too high/too low)
• Attempt counter
• Input validation
• Loop control (while loop)

🛠️ Technologies

• Language: C# 10.0
• Framework: .NET 10.0
• IDE: Visual Studio Code (recommended)

🚀 Getting Started

Prerequisites

• .NET SDK 10.0 or higher

Running a Project

1. Navigate to a specific project directory:

cd SyntaxAndDataTypes

2. Run the project:

dotnet run

Building the Solution

To build all projects:

dotnet build CsharpMastery.sln

📂 Project Structure

CsharpMastery/
├── CsharpMastery.sln              # Solution file
├── SyntaxAndDataTypes/            # Basic C# syntax and data types
├── ConditionalsAndControlFlow/    # Conditionals and control structures
├── SimpleCalculator/              # Calculator application
├── LeapYearChecker/              # Leap year validation
└── NumberGuessingGame/           # Interactive guessing game

🎯 Learning Objectives

This repository demonstrates:

• Fundamentals: Variables, data types, and operators
• Control Flow: Conditionals, loops, and logical operators
• Input/Output: Console interaction and user input handling
• Validation: Error handling and input validation patterns
• OOP: Classes, interfaces, and abstractions
• Problem Solving: Practical applications of programming concepts

📝 Notes

• Each project is self-contained and can be run independently
• Projects follow C# naming conventions and best practices
• Code includes comments for clarity and learning purposes

🤝 Contributing

Feel free to fork this repository and add your own learning projects or improvements.

📄 License

This is a learning project. Feel free to use it for educational purposes.

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Happy Coding! 🚀