Book Image

The C# Workshop

By : Jason Hales, Almantas Karpavicius, Mateus Viegas
4 (2)
Book Image

The C# Workshop

4 (2)
By: Jason Hales, Almantas Karpavicius, Mateus Viegas

Overview of this book

C# is a powerful, versatile language that can unlock a variety of career paths. But, as with any programming language, learning C# can be a challenging process. With a wide range of different resources available, it’s difficult to know where to start. That's where The C# Workshop comes in. Written and reviewed by industry experts, it provides a fast-paced, supportive learning experience that will quickly get you writing C# code and building applications. Unlike other software development books that focus on dry, technical explanations of the underlying theory, this Workshop cuts through the noise and uses engaging examples to help you understand how each concept is applied in the real world. As you work through the book, you'll tackle realistic exercises that simulate the type of problems that software developers work on every day. These mini-projects include building a random-number guessing game, using the publisher-subscriber model to design a web file downloader, creating a to-do list using Razor Pages, generating images from the Fibonacci sequence using async/await tasks, and developing a temperature unit conversion app which you will then deploy to a production server. By the end of this book, you'll have the knowledge, skills, and confidence to advance your career and tackle your own ambitious projects with C#.
Table of Contents (10 chapters)

Data Types

In this section, you will talk about the main data types within C# and their functionalities.

Strings

C# uses the string keyword to identify data that stores text as a sequence of characters. You can declare a string in several ways, as shown in the following snippet. However, when assigning some value to a string variable, you must place the content between a pair of double quotes, as you can see in the last two examples:

// Declare without initializing.
string message1;
// Initialize to null.
string message2 = null;
// Initialize as an empty string
string message3 = System.String.Empty;
// Will have the same content as the above one
string message4 = "";
// With implicit declaration
var message4 = "A random message"     ;

One simple but effective technique (that you used in the preceding Exercise 1.02) is one called string interpolation. With this technique, it is very simple to mix plain text values with variable values, so that the...