Structures in C Sharp

                       Structures are like classes, where as we can create objects that behave like the built –in types. They resemble most like classes even though it’s found lot of differences between them.

Primitive difference between them is

•  Structures are value based where as classes are reference types
• Structures do not possess Deconstruct  characteristics
•  Inheritance is strictly not supported in structures where as in classes we do.
•   Structures do not support OOPS concept

Example 1:

// file: demo_42.cs

//Author: SURESH BABU

//Purpose: Structure definition

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

namespace demo_42

{

    // Structure definition

    struct Fraction

    {

        public int numerator;

        public int denominator;

        public void print()

        {

            Console.WriteLine("  {0} / {1}", numerator, denominator);

        }

    }

    class Program

    {

        static void Main(string[] args)

        {

            Fraction f;

            f.numerator = 5;

            f.denominator = 10;

            f.print();

            Fraction f2 = f;

            f2.print();

            //modify struct instance f2

            f2.numerator = 1;

            f.print();

            f2.print();

        }

    }

}

Example 2:

//File: demo_43

//Author: SURESH BABU

//Reference: Defining a structure to as reference class

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

namespace demo_43

{

    struct Rectangle

    {

        private int m_width;

        public int width

        {

            get { return m_width; }

            set { m_width = value; }

        }

        private int m_height;

            public int height

            {

                get{return m_height;}

                set {m_height=value;}

            }

    }

    class Program

    {

        static void Main(string[] args)

        {

            int Area;

            Area = 0;

            Rectangle rect1 = new Rectangle();

            Console.WriteLine("Enter the value of widht and height of the Rectangle");

            rect1.width = int.Parse(Console.ReadLine());

            rect1.height = int.Parse(Console.ReadLine());

            Console.WriteLine("Dimensions of Width & Height");

            Console.WriteLine("____________________");

            Area = rect1.height * rect1.width;

            Console.WriteLine("Width:         {0}"+"cms"+"\nHeight:        {1}"+"cms", rect1.width, rect1.height);

            Console.WriteLine("\nArea of the Rectangle is {0}"+" sq.cms", Area);

        }

    }

}