C# Structs

by Online Tutorials Library July 14, 2022

C# Structs

In C#, classes and structs are blueprints that are used to create instance of a class. Structs are used for lightweight objects such as Color, Rectangle, Point etc.

Unlike class, structs in C# are value type than reference type. It is useful if you have data that is not intended to be modified after creation of struct.

C# Struct Example

Let’s see a simple example of struct Rectangle which has two data members width and height.

 using System; public struct Rectangle {     public int width, height;   } public class TestStructs {     public static void Main()     {         Rectangle r = new Rectangle();         r.width = 4;         r.height = 5;         Console.WriteLine(“Area of Rectangle is: ” + (r.width * r.height));     } } 

Output:

Area of Rectangle is: 20

C# Struct Example: Using Constructor and Method

Let’s see another example of struct where we are using constructor to initialize data and method to calculate area of rectangle.

 using System; public struct Rectangle {     public int width, height;      public Rectangle(int w, int h)     {         width = w;         height = h;     }     public void areaOfRectangle() {       Console.WriteLine(“Area of Rectangle is: “+(width*height)); }     } public class TestStructs {     public static void Main()     {         Rectangle r = new Rectangle(5, 6);         r.areaOfRectangle();     } } 

Output:

Area of Rectangle is: 30

Note: Struct doesn’t support inheritance. But it can implement interfaces.

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C# Struct Example

C# Struct Example: Using Constructor and Method

Note: Struct doesn’t support inheritance. But it can implement interfaces.

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