Book Image

Learn C# in 7 days

By : Gaurav Aroraa
1 (1)
Book Image

Learn C# in 7 days

1 (1)
By: Gaurav Aroraa

Overview of this book

This book takes a unique approach to teach C# to absolute beginners. You’ll learn the basics of the language in seven days. It takes a practical approach to explain the important concepts that build the foundation of the C# programming language. The book begins by teaching you the basic fundamentals using real-world practical examples and gets you acquainted with C# programming. We cover some important features and nuances of the language in a hands-on way, helping you grasp the concepts in a fluid manner. Later, you’ll explore the concepts of Object-Oriented Programming (OOP) through a real-world example. Then we dive into advanced-level concepts such as generics and collections, and you’ll get acquainted with objects and LINQ. Towards the end, you’ll build an application that covers all the concepts explained in the book. By the end of this book, you will have next-level skills and a good knowledge of the fundamentals of C#.

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Table of Contents (15 chapters)
Title Page
Title Page
Credits
Credits
About the Author
About the Author
About the Reviewer
About the Reviewer
www.PacktPub.com
www.PacktPub.com
Customer Feedback
Customer Feedback
Preface
Preface
Free Chapter
1
Day 01 - Overview of the .NET Framework
Day 01 - Overview of the .NET Framework
What is programming?
What is .NET?
What is .NET Core?
Hands - on exercises
Revisiting Day 01
2
Day 02 - Getting Started with C#
Day 02 - Getting Started with C#
Introduction to C#
Understanding a typical C# program
An overview of C# reserved keywords, types, and operators
An overview of type conversion
Understanding statements
Arrays and string manipulations
Structure versus class
Hands-on exercise
Revisiting day 2
3
Day 03 - What's New in C#
Day 03 - What's New in C#
Tuples and deconstruction
Pattern matching
Local functions
Literal improvements
Async Main
Default expressions
Infer tuple names
Other features supposed to release
Hands-on exercises
Revisiting Day 03
4
Day 04 - Discussing C# Class Members
Day 04 - Discussing C# Class Members
Modifiers
Methods
Properties
Indexers
File I/O
Exception handling
Discussing a regular expression and its importance
Hands-on exercise
Revisiting Day 04
5
Day 05 - Overview of Reflection and Collections
Day 05 - Overview of Reflection and Collections
What is reflection?
Overview of delegates and events
Collections and non-generics
Hands - on exercise
Revisiting Day 05
6
Day 06 - Deep Dive with Advanced Concepts
Day 06 - Deep Dive with Advanced Concepts
Playing with collections and generics
Beautifying code using attributes
Leveraging preprocessor directives
Getting started with LINQ
Writing unsafe code
Writing asynchronous code
Hands-on exercises
Revisiting Day 6
7
Day 07 - Understanding Object-Oriented Programming with C#
Day 07 - Understanding Object-Oriented Programming with C#
Introduction to OOP
Discussing Object relations
Inheritance
Abstraction
Encapsulation
Polymorphism
Hands on Exercise
Revisiting Day 7
What next?
8
Day 08 - Test Your Skills – Build a Real-World Application
Day 08 - Test Your Skills – Build a Real-World Application
Why are we developing this application?
Getting started with application development
Discussing the basic architecture
Revisiting day 08

Hands-on exercises

  1. Define generic classes by creating generic code of StringCalculator: https://github.com/garora/TDD-Katas/tree/develop/Src/cs/StringCalculator
  2. Create a generic and non-generic collection and test which one is better as per performance.
  3. We have discussed code snippets in the section-Why one should use Generics? that tells about run-time compilation exceptions. In this regard, why should we not use the same code in the following way?
internal class Program 
{ 
      private static void Main(string[] args) 
{ 
    //No exception at compile-time or run-time 
    ArrayList authorEditorArrayList = new ArrayList {
    "Gaurav Arora", 43, "Vikas Tiwari", 25 }; 
    foreach (var authorEditor in authorEditorArrayList) 
    { 
        WriteLine($"{authorEditor}"); 
    } 
}     
}
  1. What is the use of the default keyword in generic code, elaborate with the help of a real-world example.
  2. Write simple code by using all 3-types of predefined attributes.
  3. What is the default restriction type for...
Previous Section
End of Section 8
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