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C# Grundlæggende

bookIf-sætning

An if statement, also known as conditional statement, is a method of executing a block of code based on a condition. The syntax of an if statement is the following:

if(condition) {
    // code to execute
}

It takes an expression and executes the code block if the expression is true.

For example:

main.cs

main.cs

copy

              
12345678910111213141516

            
using System;

namespace ConsoleApp
{
    internal class Program
    {
        static void Main(string[] args)
        {
			Console.WriteLine("Before Conditional");
			if(10 > 9) {
    			Console.WriteLine("10 is greater than 9");
			}
			Console.WriteLine("After Conditional");
        }
    }
}

In case the condition is false the code block is ignored:

main.cs

main.cs

copy

              
12345678910111213141516

            
using System;

namespace ConsoleApp
{
    internal class Program
    {
        static void Main(string[] args)
        {
			Console.WriteLine("Before Conditional");
			if(10 > 10) {
    			Console.WriteLine("10 is greater than 9");
			}
			Console.WriteLine("After Conditional");
        }
    }
}
question mark

What is the output of the following code:

Select the correct answer

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Sektion 3. Kapitel 5

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Suggested prompts:

Can you explain how to use else statements with if statements?

What are some common mistakes to avoid when writing if statements in C#?

Can you give more examples of conditions I can use in if statements?

bookIf-sætning

Stryg for at vise menuen

An if statement, also known as conditional statement, is a method of executing a block of code based on a condition. The syntax of an if statement is the following:

if(condition) {
    // code to execute
}

It takes an expression and executes the code block if the expression is true.

For example:

main.cs

main.cs

copy

              
12345678910111213141516

            
using System;

namespace ConsoleApp
{
    internal class Program
    {
        static void Main(string[] args)
        {
			Console.WriteLine("Before Conditional");
			if(10 > 9) {
    			Console.WriteLine("10 is greater than 9");
			}
			Console.WriteLine("After Conditional");
        }
    }
}

In case the condition is false the code block is ignored:

main.cs

main.cs

copy

              
12345678910111213141516

            
using System;

namespace ConsoleApp
{
    internal class Program
    {
        static void Main(string[] args)
        {
			Console.WriteLine("Before Conditional");
			if(10 > 10) {
    			Console.WriteLine("10 is greater than 9");
			}
			Console.WriteLine("After Conditional");
        }
    }
}
question mark

What is the output of the following code:

Select the correct answer

Var alt klart?

Hvordan kan vi forbedre det?

Tak for dine kommentarer!

Sektion 3. Kapitel 5
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