/ * Fahreneit to celcius * /
using System;
namespace ConsoleApplication1
{
class fts
{
static void Main(string[] args)
{
double f, c;
int counter=0;
for (f = 0.0; f < 5.0; f++)
{
c = 5.0 / 9.0 * (f - 32.0);
Console.WriteLine(f + " degrees Fahrenheit is " +
c + " degrees Celsius.");
counter++;
}
Console.ReadLine();
}
}
}
OUTPUT:-
PROGRAM TO DISPLAY DATE AND TIME USING CLASS IN C#
using System;
using System.Timers;
class myApp
{
public static void Main()
{
Timer myTimer = new Timer();
myTimer.Elapsed += new ElapsedEventHandler( DisplayTimeEvent );
myTimer.Interval = 1000;
myTimer.Start();
while ( Console.Read() != 'q' )
{
}
}
public static void DisplayTimeEvent( object source, ElapsedEventArgs e )
{
Console.Write("\r{0}", DateTime.Now);
}
}
OUTPUT:-
/ * PROGRAM WHICH USES INHERITANCE IN C# * /
using System;
namespace ConsoleApplication6
{
class Room
{
public int length;
public int breadth;
public Room(int x,int y)
{
length=x;
breadth=y;
}
public int Area()
{
return(length*breadth);
}
}
class BedRoom:Room
{
int height;
public BedRoom(int x,int y, int z):base(x,y)
{
height=z;
}
public int Volume()
{
return(length*breadth*height);
}
}
class Inhertest
{
public static void Main(string[] args)
{
BedRoom room1=new BedRoom(14,12,10);
int area1=room1.Area();
int volume1=room1.Volume();
Console.WriteLine("Area1="+area1);
Console.WriteLine("Volume1="+volume1);
Console.Read();
}
}
}
OUTPUT:-
PROGRAM TO DEMONSTRATE EXCEPTION HANDLING IN C#
using System;
namespace ConsoleApplication1
{
class Execp
{
public static void Main()
{
int a=10;
int b=5;
int c=5;
int x,y;
try
{
x=a/(b-c);
}
catch(Exception e)
{
Console.WriteLine("Division by zero");
}
y=a/(b+c);
Console.WriteLine("y="+y);
Console.Read();
}
}
}
OUTPUT:-
/ * PROGRAM USING ABSTRACT CLASS IN C# * /
using System;
namespace ConsoleApplication1
{
public abstract class Shape
{
protected string color;
public Shape(string color)
{
this.color = color;
}
public string getColor()
{
return color;
}
public abstract double getArea();
}
public class Circle : Shape
{
private double radius;
public Circle(string color, double radius) : base(color)
{
this.radius = radius;
}
public override double getArea()
{
return System.Math.PI * radius * radius;
}
}
public class Square : Shape
{
private double sideLen;
public Square(string color, double sideLen) : base(color)
{
this.sideLen = sideLen;
}
public override double getArea()
{
return sideLen * sideLen;
}
}
public class Example3
{
static void Main()
{
Shape myCircle = new Circle("orange", 3);
Shape mySquare = new Square("green", 4);
System.Console.WriteLine("This circle is " + myCircle.getColor()
+ " and its area is " + myCircle.getArea() + ".");
System.Console.WriteLine("This square is " + mySquare.getColor()
+ " and its area is " + mySquare.getArea() + ".");
Console.Read();
}
}
}
OUTPUT:-
PROGRAM USING CONSTRUCTOR AND DESTRUCTOR
using System;
namespace ConsoleApplication2
{
class rectangle
{
public int length,width;
public rectangle(int x,int y)
{
length=x;
width=y;
}
public int area()
{
return(length*width);
}
~rectangle()
{
Console.WriteLine("length "+length+"width"+width);
}
}
class rectanglearea
{
static void Main(string[] args)
{
rectangle rect1=new rectangle(15,10);
int area1=rect1.area();
Console.WriteLine("Area="+area1);
Console.Read();
}
}
}
OUTPUT:-
/ * PROGRAM USING INTERFACE * /
using System;
namespace ConsoleApplication2
{
interface addition
{
int add();
}
interface multiplication
{
int mul();
}
class computation:addition,multiplication
{
int x,y;
public computation(int x,int y)
{
this.x=x;
this.y=y;
}
public int add()
{
return(x+y);
}
public int mul()
{
return(x*y);
}
}
class interfacetest1
{
public static void Main()
{
computation com=new computation(10,20);
addition ad=(addition) com;
Console.WriteLine("sum="+ad.add());
multiplication mu=(multiplication)com;
Console.WriteLine("product="+mu.mul());
Console.Read();
}
}
}
OUTPUT:-
/ * TO DISPLAY SIMPLE FORM USING WINDOWS APLLICATION * /
using System.Windows.Forms;
public class Form1 : System.Windows.Forms.Form
{
private System.Windows.Forms.Label label1;
private System.Windows.Forms.Button button1;
public Form1()
{
InitializeComponent();
}
#region Windows Form Designer generated code
private void InitializeComponent()
{
this.label1 = new System.Windows.Forms.Label();
this.button1 = new System.Windows.Forms.Button();
this.SuspendLayout();
this.label1.Font = new System.Drawing.Font("Microsoft Sans Serif", 14.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
this.label1.Location = new System.Drawing.Point(120, 80);
this.label1.Name = "label1";
this.label1.Size = new System.Drawing.Size(120, 23);
this.label1.TabIndex = 0;
this.label1.Text = "WELCOME";
this.button1.Location = new System.Drawing.Point(136, 160);
this.button1.Name = "button1";
this.button1.TabIndex = 1;
this.button1.Text = "Exit";
this.button1.Click += new System.EventHandler(this.button1_Click);
this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
this.ClientSize = new System.Drawing.Size(400, 326);
this.Controls.Add(this.button1);
this.Controls.Add(this.label1);
this.Name = "Form1";
this.Text = "Form1";
this.Load += new System.EventHandler(this.Form1_Load);
this.ResumeLayout(false);
}
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