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Hands-On Object-Oriented Programming with C#

By : Abhishek Sur, Taher

3.5 (4)

Hands-On Object-Oriented Programming with C#

3.5 (4)

By: Abhishek Sur, 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.

Preface

Preface

Who this book is for

What this book covers

To get the most out of this book

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Free Chapter

Overview of C# as a Language

Overview of C# as a Language

Evolution of C#

Architecture of .NET

Fundamentals and syntax of C# language

Writing your first C# program in a console application

Visual Studio as an editor

Writing your first program in Visual Studio

Summary

Hello OOP - Classes and Objects

Hello OOP - Classes and Objects

Classes in OOP

Objects in OOP

Variables in C#

Methods in a class

Characteristics of OOP

Summary

Implementation of OOP in C#

Implementation of OOP in C#

Interfaces

The abstract class

The partial class

The sealed class

Tuples

Properties

Access specifiers for classes

Summary

Object Collaboration

Object Collaboration

Examples of object collaboration

Different types of object collaboration in C#

Summary

Exception Handling

Exception Handling

Why we need exception handling in programming

Basics of exception handling

Try and catch

What happens if you don't handle exceptions?

Multiple catch blocks

Using the throw keyword

What does the finally block do?

Exception class

User-defined exceptions

The exception filter

Exception handling best practices

Summary

Events and Delegates

Events and Delegates

What is a delegate?

Method group conversion

Multicasting

Covariance and contravariance

Events

Summary

Generics in C#

Generics in C#

What are generics?

Why do we need generics?

Different constraints of generics

Generic methods

Covariance and contravariance in generics

Summary

Modeling and Designing Software

Modeling and Designing Software

The importance of design diagrams

Class diagrams

Use case diagrams

A sequence diagram

Summary

Visual Studio and Associated Tools

Visual Studio and Associated Tools

Visual Studio project types and templates

Visual Studio Editor and different windows

Debugging windows

Breakpoints, Call Stack Trace, and Watch

Git in Visual Studio

Refactoring and code-optimization techniques

Summary

Exploring ADO.NET with Examples

Exploring ADO.NET with Examples

The fundamentals of ADO.NET

Connecting to various databases

Working with DataReaders and DataAdapters

Working with stored procedures

Working with the Entity Framework

Transactions in SQL

Summary

New Features in C# 8

New Features in C# 8

Environment Setup

Nullable reference types

Async streams

Ranges and indices

Default implementation of interface members

Switch expressions

Target-typed new expressions

Summary

Understanding Design Patterns and Principles

Understanding Design Patterns and Principles

Design principles

Creational design patterns

Structural design patterns

Behavioral design patterns

The MVC pattern

Summary

Git - The Version Control System

Git - The Version Control System

What is version control?

How Git works

Installing Git on Windows

The basics of Git

Branching in Git

Summary

Prepare Yourself - Interviews and the Future

Prepare Yourself - Interviews and the Future

Interview questions

Interview and career tips

Things to learn next

Building the habit of reading

Summary

Other Books You May Enjoy

Other Books You May Enjoy

Leave a review - let other readers know what you think

Summary

Data is a very important part of a software application. To maintain data, we need some kind of database that will store the data in a structured way, so that it can be easily retrieved, saved, updated, and deleted. It's essential that our software is able to communicate with a data source to use the data. The ADO.NET framework provides this facility to .NET developers. Learning and understanding ADO.NET is one of the basic requirements of any .NET developer. In this chapter, we covered the fundamentals of ADO.NET elements, such as DataProviders, Connection, Command, DataReader, and DataAdapter. We also learned how to connect with the SQL Server database and the Oracle Database using ADO.NET. We discussed stored procedures and explained what the Entity Framework is and how to use it.

In the next chapter, we will be talking about a very interesting topic: Reflection...

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