C#

 C# and .Net Framework Lab

SNJPSNMS Degree College, Nidasoshi 1

Program 1: Write c# program to show the machine details like machine name, 

operating system, version, physical memory and calculate the time since last 

boot up.

 using System;

 class Program

 {

 static void Main(string[] args)

 {

 Console.WriteLine("machine name is:"+Environment.MachineName);

 Console.WriteLine("\ncurrent operating systeem is:"+Environment.OSVersion);

 Console.WriteLine("\nexecuting version of visual studio .net is"+Environment.Version);

 Console.WriteLine("\ncurrent directory is:"+Environment.CurrentDirectory);

Console.WriteLine("\nyou have{0} byes of RAM in your system", + 

Environment.WorkingSet);

Console.WriteLine("\nthe system time since last bootup is:{0} minutes", 

(Environment.TickCount)/1000/60);

 Console.WriteLine("\nlogical drives in the system are :");

 String[] drives=Environment.GetLogicalDrives();

 for (int i = 0; i < drives.Length; i++)

 Console.WriteLine("drives{0}:{1}",i, drives[i]);

 Console.ReadKey();

 }

 }







C# and .Net Framework Lab

SNJPSNMS Degree College, Nidasoshi 1

Program 1: Write c# program to show the machine details like machine name, 

operating system, version, physical memory and calculate the time since last 

boot up.

 using System;

 class Program

 {

 static void Main(string[] args)

 {

 Console.WriteLine("machine name is:"+Environment.MachineName);

 Console.WriteLine("\ncurrent operating systeem is:"+Environment.OSVersion);

 Console.WriteLine("\nexecuting version of visual studio .net is"+Environment.Version);

 Console.WriteLine("\ncurrent directory is:"+Environment.CurrentDirectory);

Console.WriteLine("\nyou have{0} byes of RAM in your system", + 

Environment.WorkingSet);

Console.WriteLine("\nthe system time since last bootup is:{0} minutes", 

(Environment.TickCount)/1000/60);

 Console.WriteLine("\nlogical drives in the system are :");

 String[] drives=Environment.GetLogicalDrives();

 for (int i = 0; i < drives.Length; i++)

 Console.WriteLine("drives{0}:{1}",i, drives[i]);

 Console.ReadKey();

 }

 }






C# and .Net Framework Lab

SNJPSNMS Degree College, Nidasoshi 5

Program 3: Write a program in c# to create a function to calculate the sum of 

the individual digits of a given number.

using System;

 class Program

 {

 static void Main(string[] args)

 {

 int num;

 Console.WriteLine("enter a number");

 num=Convert.ToInt32(Console.ReadLine());

Console.WriteLine("the sum of the digits of the number {0} is:{1}\n", num, 

SumCal(num));

 Console.ReadLine();

 }

 public static int SumCal(int number)

 {

 String n1=Convert.ToString(number);

 int sum=0;

 for(int i=0;i<n1.Length;i++)

 sum+=Convert.ToInt32(n1.Substring(i,1));

 return sum;

 Console.ReadLine();

 }

 }






C# and .Net Framework Lab

SNJPSNMS Degree College, Nidasoshi 7

Program 4: Draw a square with side 100fixels in length. Then inscribe (draw) 

a circle of radius 50 inside the square. Position the square and inscribed circle 

in the middle of the screen.

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;

namespace progr4

{

 public partial class Form1 : Form

 {

 public Form1()

 {

 InitializeComponent();

 }

 private void pictureBox1_Paint(object sender, PaintEventArgs e)

 {

 Pen Redpen = new Pen(Color.Red, 6);

 Pen Bluepen = new Pen(Color.Blue, 4);

 Pen Blackpen = new Pen(Color.Black, 2);

 Rectangle rect = new Rectangle(80, 80, 50, 50);

 //draw ellipses

 e.Graphics.DrawEllipse(Blackpen, 100.0F, 100.0F, 10.0F, 10.0F);

 e.Graphics.DrawRectangle(Redpen, rect);

 e.Graphics.DrawEllipse(Bluepen,60,60,90,90);

 e.Graphics.DrawRectangle(Blackpen,40.0F,40.0F,130.0F,130.0F);

 //dispose of objects

 Redpen.Dispose();

 Blackpen.Dispose();

 Bluepen.Dispose();

 }

 }

}








C# and .Net Framework Lab

SNJPSNMS Degree College, Nidasoshi 9

Program 5: Write a program to implement multi-level inheritance.

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

namespace program5

{

 class son : Father

 {

 public void DisplayTwo()

 {

 Console.WriteLine("son..");

 }

 static void main(String[] args)

 {

 son s = new son();

 s.Display();

 s.DisplayOne();

 s.DisplayTwo();

 Console.Read();

 }

 }

 class Grandfather

 {

 public void Display()

 {

 Console.WriteLine("grandfather...");

 }

 }

 class Father : Grandfather

 {

 public void DisplayOne()

 {

 Console.WriteLine("Father...");

 }

 }

}





C# and .Net Framework Lab

SNJPSNMS Degree College, Nidasoshi 11

Program 6: Write a c# program to demonstrate system exception.

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

namespace pro6

{

 class Program

 {

 static void Main(string[] args)

 {

 try

 {

 int[] arr = new int[5];

 arr[10] = 25;

 }

 catch (SystemException e)

 {

 Console.WriteLine(e);

 }

 Console.ReadKey();

 }

 }

}








C# and .Net Framework Lab

SNJPSNMS Degree College, Nidasoshi 12

Program 7: Write an Object- oriented program to demonstrate bank transaction include

methods for amount deposit, withdraw, display.

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

namespace program7

{

 class bank

 {

 public int bal = 500;

 public void deposit()

 {

 int depositamt;

 Console.WriteLine("enter the amount to be deposit:");

 depositamt = int.Parse(Console.ReadLine());

 bal = bal + depositamt;

 Console.WriteLine("your current balance is:" + bal);

 }

 public void withdraw()

 {

 int withdrawamt;

 Console.WriteLine("enter the amount to be withdraw:");

 withdrawamt = int.Parse(Console.ReadLine());

 if (withdrawamt > bal)

 {

 Console.WriteLine("in sufficient amount");

 }

 else

 bal = bal - withdrawamt;

 Console.WriteLine("your current balance is:" + bal);

 }

 }

class program

 {

 static void Main(String[] args)

 {

 bank b = new bank();

 b.deposit();

 b.withdraw();

 Console.ReadLine();

 }

 }

 }





C# and .Net Framework Lab

SNJPSNMS Degree College, Nidasoshi 14

Program 8: Demonstrate operator overloading using two complex numbers.

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

namespace program8

{

 class Program

 {

 static void Main(string[] args)

 {

 Complex c1 = new Complex(3, 7);

 c1.Display();

 Complex c2 = new Complex(5, 2);

 c2.Display();

 Complex c3 = c1 + c2;

 c3.Display();

 Console.ReadKey();

 }

 }

public class Complex

{

 private int real;

 private int img;

 public Complex(int r=0,int i=0)

 {

 real =r;

 img =i;

 }

 public static Complex operator +(Complex c1, Complex c2)

 {

 Complex temp = new Complex();

 temp.real = c1.real + c2 .real;

 temp.img = c1.img + c2. img;

 return temp;

 }

public void Display()

 {

Console.WriteLine("{0} + i{1}",real,img);

 }

}

}






C# and .Net Framework Lab

SNJPSNMS Degree College, Nidasoshi 16

Program 9: Demonstrate DialogBoxes (Modal and Modeless)

Form1.cs [Design]

Form1.cs

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;

namespace WindowsFormsApplication9

{

 public partial class Form1 : Form

 {

 public static Control form1;

 public Form1()

 {

 InitializeComponent();

 }

C# and .Net Framework Lab

SNJPSNMS Degree College, Nidasoshi 17

 private void button1_Click(object sender, EventArgs e)

 {

 Form2 f2 = new Form2();

 form1 = this;

 f2.Show();

 f2.textBox1.Text = this.textBox1.Text;

 }

 }

}

Form2.cs [Design]

Form2.cs

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;

C# and .Net Framework Lab

SNJPSNMS Degree College, Nidasoshi 18

namespace WindowsFormsApplication9

{

 public partial class Form2 : Form

 {

 public Form2()

 {

 InitializeComponent();

 }

 private void button1_Click(object sender, EventArgs e)

 {

 for (int i = 0; i < Form1.form1.Controls.Count; i++)

 {

if ((Form1.form1.Controls[i] is TextBox) && (Form1.form1.Controls[i].Name == "textBox1"))

 {

 Form1.form1.Controls[i].Text = this.textBox1.Text;

 break;

 }

 }

 }

 private void button2_Click(object sender, EventArgs e)

 {

 this.Close();

 }

 }

}






C# and .Net Framework Lab

SNJPSNMS Degree College, Nidasoshi 20

Program 10: Write a program in c# to create menu and menuitems.

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;

namespace program10

{

 public partial class Form1 : Form

 {

 private MainMenu mainMenu;

 public Form1()

 {

 InitializeComponent();

 mainMenu =new MainMenu ();

 MenuItem File = mainMenu.MenuItems.Add("&File");

 File.MenuItems.Add(new MenuItem("&new"));

 File.MenuItems.Add(new MenuItem("&open"));

 File.MenuItems.Add(new MenuItem("&exit"));

 this.Menu =mainMenu;

 MenuItem about=mainMenu.MenuItems.Add("&about");

 about.MenuItems.Add(new MenuItem("&about"));

 this.Menu =mainMenu;

 mainMenu.GetForm().BackColor =Color.Indigo;

 }

 private void Form1_Load(object sender, EventArgs e)

 {

 }

 }

}

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