Lab Exercise :- 1

Ques. Develop an exe with Visual Studio.

using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace proj3 { class Program { static void Main(string[] args) { Console.WriteLine("This is the simple executable File "); Console.ReadKey(); } } }

Lab Exercise :- 2

Ques. Develop a private dll with Visual Studio.

using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; namespace MyLib1 { public class MyClass { public static void display(String s) { Console.WriteLine("Hello .."+s+"This is the Display Function of MyClass of MyLib1.dll"); } } }

Use the created dll classes in our file

using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace console { class Program { static void Main(string[] args) { MyLib1.MyClass.display("KuKu"); Console.WriteLine("Main Exited"); } }}

Lab Exercise :- 3

Ques. Develop shared dll using Visual Studio.

using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Reflection; [assembly: AssemblyKeyFile("D:\\programs\\Dot Net\\key1.snk")] namespace MyLib1 { public class MyClass { public static void display(String s) { Console.WriteLine("Hello .."+s+"This is the Display Function of MyClass of MyLib1.dll"); } } }

Key is created for strong name of MyLib1.dll

Lab Exercise :- 4

Ques. Write a program in notepad and compile it using CSC compiler.

using System;

namespace Outer

{

public class MyClass

{

static void Main()

{Console.WriteLine("Main Method of My Class");}

}

}

LAB EXERCISE-5

Ques. Create an abstract class shape with length, width, height and radius as fields and Area() as

abstract function and inherited it for Circle, Square and Rectangle class.

[Develop this program in ASP.NET with good look and feel. Use Images wherever required].

Area:

Area:

Area:

using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

using System.Web.UI;

using System.Web.UI.WebControls;

namespace WebApplication1

{

public abstract class Shape

{

protected float length;

protected float width;

protected float height;

protected float radius;

abstract public float area();

}

class Circle : Shape

{

public Circle(float r)

{

radius = r;

}

public override float area()

{

return (3.14f * radius * radius);

}

}

class Square : Shape

{

public Square(float h)

{

height = h;

}

public override float area()

{

return (height * height);

}

}

class Rectangle : Shape

{

public Rectangle(float l, float w)

{

length = l;

width = w;

}

public override float area()

{

return (length * width);

}

}

public partial class _Default : System.Web.UI.Page

{

protected void BtnSubmit_Click(object sender, EventArgs e)

{

if ((TxtRadius.Text) != "")

{

float r = (float)Convert.ToDecimal(TxtRadius.Text);

Circle cobj = new Circle(r);

area1.Text = Convert.ToString(cobj.area());

}

if ((TxtSize.Text) != "")

{

float s = (float)Convert.ToDecimal(TxtSize.Text);

Square sobj = new Square(s);

area2.Text = Convert.ToString(sobj.area());

}

if ((TxtLength.Text) != "" && (TxtRadius.Text) != "")

{

float l = (float)Convert.ToDecimal(TxtLength.Text);

float b = (float)Convert.ToDecimal(TxtWidth.Text);

Rectangle robj = new Rectangle(l, b);

area3.Text = Convert.ToString(robj.area());

} } } }

Ques. Demonstrate the Explicit Interface Implementation by creating two or more interfaces that

have same signatures.

using System;

interface Italk1

{

void Read();

}

interface Italk2

{

void Read();

}

class Derived1:Italk1,Italk2

{

void Italk1.Read()

{

Console.WriteLine("Reading from First Interface");

}

void Italk2.Read()

{

Console.WriteLine("Reading from Second Interface");

}

public static void Main(string[] args)

{

Derived dobj=new Derived();

Italk1 o1=(Italk1)dobj;

Italk2 o2=(Italk2)dobj;

o1.Read();

o2.Read();

Console.ReadKey();

}

}

Ques. Demonstrate the Explicit Interface Implementation by creating two or more interface that

have same signatures with Operator AS.

using System;

interface Italk1

{

void Read();

}

interface Italk2

{

void Read();

}

class Derived:Italk1,Italk2

{

void Italk1.Read()

{

Console.WriteLine("Reading from First interface");

}

void Italk2.Read()

{

Console.WriteLine("Reading from Second Interface");

}

public static void Main(string[] args)

{

Derived1 dobj=new Derived1();

Italk1 o1=dobj as Italk1;

Italk2 o2=dobj as Italk2;

o1.Read();

o2.Read();

Console.ReadKey();

}

}