C# Basics

C# Basics

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1. Getting Started

In this section we will get an introduction to C#. Moreover, we will also learn some basic elements of the C# language.

Displaying Output

Challenge: Outputting a Triangle

Challenge: Comments

Identifiers

Challenge: Variable Declaration

Basic Operators & Expressions

Challenge: Operators

2. Dealing with Data Types

In any programming language we have to deal with different types of data. In this section we will learn about that.

Integer Data Types

Declaring Explicitly Typed Variables

Floating-Point and Double

Strings Challenge

Basic String Formatting

String Formatting Practice

Declaring Constants

Basic Type Casting

Type Casting Practice

Basic Type Conversion

Basic Coding Practice

3. Control Structures

In this section we will learn about features of C# that help us control the flow of the program such as executing pieces of code based on conditions.

Comparison Operators

Logical Operators

Operators Challenge

Order of Operations

if-condition Challenge

else Keyword Practice

Task (if, else-if, else)

switch Statement

Practicing Switch

4. Loops

In this section we will learn about how to deal with repetitive tasks in programming.

Practicing For Loop

Practicing Do-While Loop

break statement

continue statement

Practicing break and continue

5. Arrays

Arrays are an important part of any programming language as they let us group together and manipulate a large amount of similar data. In this section we will learn about Arrays and how to use them for practical applications.

What are Arrays?

Practicing Array Declaration

Indexing Practice

Multi-Dimensional Arrays

Practicing Multi-Dimensional Arrays

Looping through Arrays

Array Loops Challenge

6. Methods

In this section we will learn about one of of the most widely used and essential features of C# called Methods. We will also explore its uses through creative practice tasks.

What are Methods?

Creating and Calling Methods

Methods Creation Practice

Method Parameters

Practicing Method with Parameters

Method Return Values

Practicing Return Values

Local & Global Scopes

Practicing Scopes

Зміст курсу

C# Basics

C# Basics

1. Getting Started

Why C#?C# Syntax Displaying Output Challenge: Outputting a Triangle Comments Challenge: Comments Variables Identifiers Challenge: Variable Declaration Basic Operators & Expressions Challenge: Operators

2. Dealing with Data Types

Integer Data Types Declaring Explicitly Typed Variables Floating-Point and Double Booleans Character String Strings Challenge Basic String Formatting String Formatting Practice Declaring Constants Basic Type Casting Type Casting Practice Basic Type Conversion Basic Coding Practice

3. Control Structures

Comparison Operators Logical Operators Operators Challenge Order of Operations if statement if-condition Challenge else Keyword else Keyword Practice if-else Chain Task (if, else-if, else)switch Statement Practicing Switch

4. Loops

For Loop Practicing For Loop While Loop Do-While Loop Practicing Do-While Loop break statement continue statement Practicing break and continue

5. Arrays

What are Arrays?Practicing Array Declaration Indexing Indexing Practice Multi-Dimensional Arrays Practicing Multi-Dimensional Arrays Looping through Arrays Array Loops Challenge

6. Methods

What are Methods?Creating and Calling Methods Methods Creation Practice Method Parameters Practicing Method with Parameters Method Return Values Practicing Return Values Local & Global Scopes Practicing Scopes What's Next?

Identifiers

In C#, all variables must have unique names. These unique names are called identifiers as they identify the different variables.

There are certain rules for naming variables. Following are the rules that one must keep in mind when naming a variable:

Variable names can contain lowercase letters (a-z), uppercase letters (A-Z), numbers (0-9) and the underscore symbol (_). Any other character is invalid;
Variable names cannot begin with a number. They can begin with a letter or an underscore; Variable names cannot contain whitespace (space);
A variable name cannot be the same as a reserved word. Reserved words are predefined keywords that have a specific meaning or function in a programming language. Some examples of reserved words are: var, namespace, class, internal, etc;
Variable names are case sensitive, therefore the name myVar does not conflict with MyVar.

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