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C# Beyond Basics

bookClass Methods

Just like structs, classes can also have methods. The syntax for creating and calling methods is also very similar:

For example, we can create a class called Rectangle with width and height attributes and a method called area, which calculates the area of the rectangle object based on the width and height values:

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class className {
    // ... other class code

    public returnType methodName(datatype param1, datatype param2, ...) {
        // code
    }
}
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using System;

public class ConsoleApp
{
    class Rectangle {
        public double width;
        public double height;
        
        public double area() {
            return width * height;
        }
    }
    
    public static void Main(string[] args)
    {
        Rectangle r1 = new Rectangle();
        r1.width = 10;
        r1.height = 20;
        
        Rectangle r2 = new Rectangle();
        r2.width = 14.7;
        r2.height= 17.9;
        
        Console.WriteLine($"Area of R1 is {r1.area()}");
        Console.WriteLine($"Area of R2 is {r2.area()}");
    }
}
question mark

Which of the following is a valid method?

Select the correct answer

Was alles duidelijk?

Hoe kunnen we het verbeteren?

Bedankt voor je feedback!

Sectie 3. Hoofdstuk 7

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bookClass Methods

Veeg om het menu te tonen

Just like structs, classes can also have methods. The syntax for creating and calling methods is also very similar:

For example, we can create a class called Rectangle with width and height attributes and a method called area, which calculates the area of the rectangle object based on the width and height values:

index.cs

index.cs

copy

              
1234567

            
class className {
    // ... other class code

    public returnType methodName(datatype param1, datatype param2, ...) {
        // code
    }
}
index.cs

index.cs

copy

              
123456789101112131415161718192021222324252627

            
using System;

public class ConsoleApp
{
    class Rectangle {
        public double width;
        public double height;
        
        public double area() {
            return width * height;
        }
    }
    
    public static void Main(string[] args)
    {
        Rectangle r1 = new Rectangle();
        r1.width = 10;
        r1.height = 20;
        
        Rectangle r2 = new Rectangle();
        r2.width = 14.7;
        r2.height= 17.9;
        
        Console.WriteLine($"Area of R1 is {r1.area()}");
        Console.WriteLine($"Area of R2 is {r2.area()}");
    }
}
question mark

Which of the following is a valid method?

Select the correct answer

Was alles duidelijk?

Hoe kunnen we het verbeteren?

Bedankt voor je feedback!

Sectie 3. Hoofdstuk 7
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