README.md

LINQ PRACTICES AND GOOD-BAD CODE EXAMPLES

This repository contains a C# console application showcasing good and bad coding practices, emphasizing SOLID principles. The project is divided into two parts:

LINQ Practice Code:

Overview

Explore LINQ queries applied to a collection of books. The examples cover different scenarios, showcasing the power and flexibility of LINQ in querying and manipulating data.

Running LINQ Practice Code

1. Navigate to the LINQPractice folder.
2. Open Program.cs in your preferred C# development environment (e.g., Visual Studio).
3. Build and run the application.

HowToNotCode Project:

Project Overview

The HowToNotCode Project is designed to demonstrate both good and bad coding practices within a book management system. The components include:

• BookRepository.cs: Implements the book repository.
• BookService.cs: Implements the book service with good and bad coding examples.
• ExceptionHandler.cs: Provides a centralized approach to exception handling.
• Book.cs: Defines the Book class.

Features

1. Dependency Inversion Principle (DIP):

   • BookService utilizes the DIP by injecting an interface (IBookRepository) for the bookRepository dependency.

2. Single Responsibility Principle (SRP):

   • Methods in BookService adhere to SRP, handling specific tasks such as adding, updating, deleting books, and viewing books and authors.

3. Clean Error Handling:

   • The code demonstrates clean error handling practices, providing informative messages for invalid input.

HowToNotCode Examples

The BookService class includes both good and bad examples, allowing developers to compare and understand the impact of applying SOLID principles.

Running HowToNotCode Project

1. Navigate to the HowToNotCode folder.
2. Open Program.cs in your preferred C# development environment.
3. Build and run the HowToNotCode project.