Kursusindhold

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?

Comments

In programming, comments are parts of code that are meant for leaving messages, notes or perhaps comments, in the code, for yourself or for other people who might read it. A comment does not affect the functionality of the program.

A single-line comment can be added using the double forward slash (//) operator:

main.cs


              1234567891011
            
namespace TestConsoleApp
{
    internal class Program
    {
        static void Main(string[] args)
        {   
            // This is a comment
            System.Console.WriteLine("Hello World");
        }
    }
}

A multi-line comment can be added by enclosing the text inside /* and */ operators.

main.cs


              1234567891011121314151617
            
namespace TestConsoleApp
{
    internal class Program
    {
        static void Main(string[] args)
        {   
            /*
                This
                is
                a
                multi-line
                comment
            */
            System.Console.WriteLine("Hello World");
        }
    }
}

Multi-line comments can also be used to comment out parts of a single line:

main.cs


              1234567891011
            
namespace ConsoleApp
{
    internal class Program
    {
        static void Main(string[] args)
        {
            System.Console.WriteLine(/*" This text will not be shown." */ "This text will be shown. ");
            /* System.Console.WriteLine("The whole statement is commented out"); */
        }
    }
}

It is also a common practice to comment-out a piece of code which we temporarily want to exclude from the program:

main.cs


              12345678910111213
            
namespace TestConsoleApp
{
    internal class Program
    {
        static void Main(string[] args)
        {   
            System.Console.WriteLine("Line 1");
            System.Console.WriteLine("Line 2");
            // System.Console.WriteLine("Line 3");
            System.Console.WriteLine("Line 4");
        }
    }
}

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Sektion 1. Kapitel 5

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Kursusindhold

C# Basics

1. Getting Started

2. Dealing with Data Types

3. Control Structures

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

Comments

A single-line comment can be added using the double forward slash (//) operator:

main.cs


              1234567891011
            
namespace TestConsoleApp
{
    internal class Program
    {
        static void Main(string[] args)
        {   
            // This is a comment
            System.Console.WriteLine("Hello World");
        }
    }
}

A multi-line comment can be added by enclosing the text inside /* and */ operators.

main.cs


              1234567891011121314151617
            
namespace TestConsoleApp
{
    internal class Program
    {
        static void Main(string[] args)
        {   
            /*
                This
                is
                a
                multi-line
                comment
            */
            System.Console.WriteLine("Hello World");
        }
    }
}

Multi-line comments can also be used to comment out parts of a single line:

main.cs


              1234567891011
            
namespace ConsoleApp
{
    internal class Program
    {
        static void Main(string[] args)
        {
            System.Console.WriteLine(/*" This text will not be shown." */ "This text will be shown. ");
            /* System.Console.WriteLine("The whole statement is commented out"); */
        }
    }
}

It is also a common practice to comment-out a piece of code which we temporarily want to exclude from the program:

main.cs


              12345678910111213
            
namespace TestConsoleApp
{
    internal class Program
    {
        static void Main(string[] args)
        {   
            System.Console.WriteLine("Line 1");
            System.Console.WriteLine("Line 2");
            // System.Console.WriteLine("Line 3");
            System.Console.WriteLine("Line 4");
        }
    }
}

Var alt klart?

Tak for dine kommentarer!

Sektion 1. Kapitel 5