C# Basics Course (How To)

C# is the most popular programming language in the Microsoft ecosystem of products. C# code is designed to run fast and to be easily maintainable. In C# Basics, we'll learn how to work with C# to write simple programs.

What you'll learn

• C# syntax
• Types
• Strings
• Numbers
• If statements

C# Syntax

Before we can write C# programs, we need to understand variables and types. This stage will get you started.

Chevron 14 steps

• Your First C# Program

  3:33

• Course Overview

  2:37

• instruction

  Treehouse Features

• The .NET Framework

  2:34

• Compile Errors

  5:25

• Comments

  1:06

• Hello, World!

  6 questions

• Variables

  7:09

• Types

  7:58

• instruction

  Code Challenges

• Hello, World!

  1 objective

• Namespaces

  4:58

• Variables

  5 questions

• Types and Namespaces

  7 questions

Methods

This stage will teach you how to do work by calling methods, and how to define your own!

Chevron 13 steps

• Methods

  6:24

• Defining methods

  4:14

• Methods

  7 questions

• Variable Scope

  3:17

• Defining a Method

  1 objective

• Method Arguments

  4:30

• Method Return Values

  6:30

• The Difference Between Printing and Returning

  1:42

• Variable Scope and Method Arguments

  5 questions

• Returning a Value from the Ask Method

  3:30

• Method Parameters

  1 objective

• Return Values

  5 questions

• Return Values

  1 objective

Strings

Whether it's written in C# or another language, almost all software needs to work with text. Programming languages represent text in the form of strings.

Chevron 7 steps

• Strings

  0:46

• String Concatenation

  4:59

• String Interpolation

  3:18

• Combining Strings

  1 objective

• Escape Sequences

  2:58

• Strings

  5 questions

• Escape Sequences

  1 objective

Numbers

Programming languages use strings a lot, but they use numbers even more often. Almost any language will let you do addition, subtraction, multiplication, division, and many other math operations. And C# is no exception.

Chevron 6 steps

• Math Operations

  9:14

• Numeric Types and Casting

  4:39

• Numeric Types and Casting

  1 objective

• Operator Precedence

  1:55

• Converting Strings to Numbers

  4:14

• Math Operations and Converting Types

  5 questions

If Statements

Our last requirement is to provide a discount for large orders of cans. But how do we determine which discount to apply?

Chevron 7 steps

• Comparison Operators

  8:13

• "if" Statements

  7:29

• "if" Statements

  4 questions

• "else if" and "else"

  6:29

• "if" Statements

  1 objective

• Course Summary

  1:21

• "else if" and "else" Statements

  1 objective