An Introduction to interface with proper example By:Tanuj Kumar

An Introduction to interface.

Problem 3:-->

Windowform3:

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Windows.Forms;

using mutilevelinheritancebyinterface;

namespace WindowsFormsApplication4

{

    public partial class Form1 : Form

    {

        public Form1()

        {

            InitializeComponent();

        }

        simple obj = new simple();

        private void button3_Click(object sender, EventArgs e)

        {

            int x = int.Parse(textBox1.Text);

            int y = int.Parse(textBox2.Text);

            MessageBox.Show(obj.add(x,y).ToString());

        }

        private void button4_Click(object sender, EventArgs e)

        {

            int x = int.Parse(textBox1.Text);

            int y = int.Parse(textBox2.Text);

            MessageBox.Show((obj.sub(x,y)).ToString());

        }

        private void button5_Click(object sender, EventArgs e)

        {

            Imyint1 my;

            my = obj;

            MessageBox.Show(my.add (2,6).ToString ());

        }

        private void button1_Click(object sender, EventArgs e)

        {

            Imyint1 my;

           //my = obj;

            //my.display();

            ((obj)my).display();

        }

        private void button2_Click(object sender, EventArgs e)

        {

            Imyint2 my;

            my = obj;

            my.display();

        }

        private void button6_Click(object sender, EventArgs e)

        {

            Imyint2 my;

            my = obj;

            MessageBox.Show(my.sub(3, 2).ToString());

        }

    }

}

mutilevelinheritancebyinterface

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Windows.Forms;

namespace mutilevelinheritancebyinterface

{

    public interface Imyint1

    {

        void display();

      int add(int a,int b);

    }

    public interface Imyint2

    {

        void display();

       int sub(int a,int b);

    }

    public class simple:Imyint1,Imyint2

    {

        void Imyint1.display()

        {

            MessageBox.Show("i am the display of Imyint1");

        }

      public int add(int a, int b)

        {

            return (a + b);

       

       

        }

  public int sub(int a, int b) {

            return (a - b);

        }

        void Imyint2.display()

        {

            MessageBox.Show("i am in my int 2");

        }

       int Imyint1.add(int a, int b)

        {

            return (a +b);

        }

        int Imyint2.sub(int a, int b)

        {

            return (a - b);

        }

    }

}

Posted By:Tanuj Kumar 

On:Shareyourconscience