Book Image

Hands-On Object-Oriented Programming with C#

By : Raihan Taher
Book Image

Hands-On Object-Oriented Programming with C#

By: Raihan Taher

Overview of this book

Object-oriented programming (OOP) is a programming paradigm organized around objects rather than actions, and data rather than logic. With the latest release of C#, you can look forward to new additions that improve object-oriented programming. This book will get you up to speed with OOP in C# in an engaging and interactive way. The book starts off by introducing you to C# language essentials and explaining OOP concepts through simple programs. You will then go on to learn how to use classes, interfacesm and properties to write pure OOP code in your applications. You will broaden your understanding of OOP further as you delve into some of the advanced features of the language, such as using events, delegates, and generics. Next, you will learn the secrets of writing good code by following design patterns and design principles. You'll also understand problem statements with their solutions and learn how to work with databases with the help of ADO.NET. Further on, you'll discover a chapter dedicated to the Git version control system. As you approach the conclusion, you'll be able to work through OOP-specific interview questions and understand how to tackle them. By the end of this book, you will have a good understanding of OOP with C# and be able to take your skills to the next level.
Table of Contents (16 chapters)

Basics of exception handling

Exception handling in C# is mainly achieved by four keywords: try, catch, throw, and finally. Later, we will talk about these keywords in detail. However, just to give you a basic idea of what is meant by those keywords, let's briefly discuss them:

  • try: When you are not sure of the expected behavior of a piece of code or if there is a possibility of an exception, you should put that code in a try block. The try block will throw an exception if any exception happens inside the code for that block. If no exception occurs, the try block will act like a normal code block. The try block is actually designed to throw exceptions, which is its main task.
  • catch: The catch block is executed when an exception is caught. Exceptions thrown by the try block will be handled by the following catch block. There could be multiple catch blocks for a try block....