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An Introduction to interface with proper example By:Tanuj Kumar


An Introduction to interface.

An Introduction to interface.

Problem 3:-->
Windowform3:
An Introduction to interface

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





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