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

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

Challenge: Declaring Explicitly Typed Variables

Floating-Point and Double

Strings Challenge

Basic String Formatting

Challenge: String Formatting

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

Challenge: Operators

Order of Operations

Challenge: `if` Condition

Challenge: `else` Keyword

`if-else` Chain

Challenge: `if`, `else-if`, `else`

`switch` Statement

Challenge: Switch

4. Loops

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

Challenge: `for` Loop

`while` Loop

`do-while` Loop

Challenge: `do-while` Loop

`break` Statement

`continue` Statement

Challenge: `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?

Challenge: Array Declaration

Challenge: Indexing

Multi-Dimensional Arrays

Challenge: Multi-Dimensional Arrays

Looping through Arrays

Challenge: Array Loops

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

Challenge: Methods Creation

Method Parameters

Challenge: Method with Parameters

Method Return Values

Challenge: Return Values

Local & Global Scopes

Challenge: Scopes

Course Content

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

3. Control Structures

Comparison Operators Logical Operators Challenge: Operators Order of Operations `if` Statement Challenge: `if` Condition `else` Keyword Challenge: `else` Keyword `if-else` Chain Challenge: `if`, `else-if`, `else``switch` Statement Challenge: Switch

4. Loops

`for` Loop Challenge: `for` Loop `while` Loop `do-while` Loop Challenge: `do-while` Loop `break` Statement `continue` Statement Challenge: `break` and `continue`

5. Arrays

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

6. Methods

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

`while` Loop

A while loop is similar to a for loop, however, it is used when we need to execute a block of code repeatedly based on a condition. The syntax of a while loop is simpler than that of a for loop:

Let's consider the practical example:

main


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using System;

namespace ConsoleApp
{
    internal class Program
    {
        static void Main(string[] args)
        {
			int i = 0;
			while(i < 5) {
    			Console.WriteLine(i);
    			i++;
			}
        }
    }
}

Although the while loop may seem very similar to the for loop at first, In more advanced levels of programming the difference becomes apparent. We might explore the usage of different kinds of loops in the Arrays section.

Note

We can write true as the condition of a while-loop to create an infinite loop. But it's not recommended to use.

main


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while(true) {
    Console.WriteLine("Hello World");
}

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Section 4. Chapter 3

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