why structure is used in c# code example

Example 1: structure in c sharp with example

Book 1 title : C Programming
Book 1 author : Nuha Ali
Book 1 subject : C Programming Tutorial
Book 1 book_id : 6495407
Book 2 title : Telecom Billing
Book 2 author : Zara Ali
Book 2 subject : Telecom Billing Tutorial
Book 2 book_id : 6495700

Example 2: structure in c sharp with example

class Program
{
    static void Main(string[] args)
    {

        Coordinate point = new Coordinate();
        
        point.CoordinatesChanged += StructEventHandler;
        point.x = 10;
        point.y = 20;
    }

    static void StructEventHandler(int point)
    {
        Console.WriteLine("Coordinate changed to {0}", point);
    }
}