net lab manual.doc

7/29/2019 NET Lab Manual.doc

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1. Write a Program in C# to Check whether a number is Palindrome or not.//Program file name is: Palindrome.cs

using System;

namespace LabProgram1{

classPalindrome{

publicstaticvoid Main(string[] args){

//Declaring the variablesint num;int intial_num;int digit;int reverse_num = 0;

//Prompt the user for an input

Console.WriteLine("***************************************");Console.WriteLine("Enter the number");Console.WriteLine("***************************************");Console.WriteLine("\r\n");

//Read the user inputintial_num = int.Parse(Console.ReadLine());num = intial_num;do{

//set digit to the users number mod 10digit = intial_num % 10;// reverse the number by multiplying it by 10 & then add

digit value to it

reverse_num = reverse_num * 10 + digit;intial_num = intial_num / 10;

}while (intial_num != 0);// Display the reversed numberConsole.WriteLine("***************************************");Console.WriteLine(" The reverse of the number is: {0}",

reverse_num);Console.WriteLine("***************************************");Console.WriteLine("\r\n");

//Check whether the number is palindrome or notif(num == reverse_num)

{Console.WriteLine("***************************************");Console.WriteLine(" The number is palindrome");Console.WriteLine("***************************************");Console.WriteLine("\r\n");Console.ReadLine();}else{Console.WriteLine("***************************************");


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Console.WriteLine(" The number is not a palindrome");Console.WriteLine("***************************************");Console.ReadLine();}

}}

}

*************************************** Enter the number*************************************** 12121

*************************************** The reverse of the number is: 12121***************************************

*************************************** The number is Palindrome***************************************

*************************************** Enter the number*************************************** 1234

*************************************** The reverse of the number is: 4321

***************************************

*************************************** The number is not a Palindrome***************************************

2. Write a Program in C# to demonstrate Command line arguments Processing.//Program file name is CommandLineArgs.cs

using System;


classCommandLineArgs{


//Declare variablesdouble argsValue = 0.0;double sqrtValue = 0.0;//Check the length of Command Line Argument


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if (args.Length == 0){

Console.WriteLine("*********************************************");Console.WriteLine("There is no Command Line Argument

defined");

Console.WriteLine("*********************************************");Console.ReadLine();return;

}//Finding squareroot of a number using Math objectargsValue = double.Parse(args[0].ToString()); sqrtValue = Math.Sqrt(argsValue);//Display the squareroot value at the command prompt

Console.WriteLine("*********************************************");Console.WriteLine("The Squareroot of command line argument is:

{0}",sqrtValue);

Console.WriteLine("*********************************************");Console.ReadLine();

}}

}

Open the Visual Studio 2008 Command Prompt

. Click the Start button & Navigate to All Programs.

. Navigate to Microsoft Visual Studio 2008.

. Navigate to Visual Studio Tools.

.Navigate to Visual Studio 2008 Command Prompt.

. Navigate to the folder u have created for storing C#.NET files.(Example folder: cd: MyExamples )

You will get Visual Studio 2008 Command Prompt.

Setting Environment for Microsoft Visual Studio 2008 x86 tools.

C:\Program Files\ Microsoft Visual Studio 9.0\VC>

.

C:\Program Files\ Microsoft Visual Studio 9.0\VC>cd MyExamples

C:\Program Files\ Microsoft Visual Studio 9.0\VC\MyExamples>

C:\Program Files\ Microsoft Visual Studio 9.0\VC\MyExamples>csc CommandLineArgs.cs

Microsoft Visual C# 2008 Compiler version 3.5.31022.8For Microsoft .Net Framework version 3.5

Copyright Microsoft Corporation . All rights reserved.

C:\Program Files\ Microsoft Visual Studio 9.0\VC\MyExamples> CommandLineArgs


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*************************************** There is no Command Line Arguments defined***************************************

C:\Program Files\ Microsoft Visual Studio 9.0\VC\MyExamples> CommandLineArgs 85

*************************************** The Squareroot of Command Line Argument is: 9.21954445729289 ***************************************

3. Write a Program in C# to find the roots of Quadratic Equation.using System;


classQuadraticEquation{


int A, B, C;double disc, denom, X1, X2;Console.WriteLine("Enter the value of A,B, & C");A = int.Parse(Console.ReadLine());B = int.Parse(Console.ReadLine());C = int.Parse(Console.ReadLine());disc = (B * B) - (4 * A * C); denom = (2 * A);if (disc > 0){

Console.WriteLine("The Roots are Real roots...");

X1 = (-B / denom) + (Math.Sqrt(disc) / denom);X2 = (-B / denom) - (Math.Sqrt(disc) / denom);Console.WriteLine("The Roots are ......:{0} and{1}", X1, X2);Console.ReadLine();

}else{

if (disc == 0){

Console.WriteLine("The Roots are Repeated roots...");X1 = -B / denom;Console.WriteLine("The Root is.....:{0}", X1);Console.ReadLine();

}else{

Console.WriteLine("The Roots are Imaginary roots...\n");X1 = -B / denom;X2 = ((Math.Sqrt((4 * A * C) - (B * B))) / denom); Console.WriteLine("The Root one.......: {0} +i{1}", X1,

X2);


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Console.WriteLine("The Roots are.......: {0} -i{1}", X1,X2);

Console.ReadLine();

}}

}}

}

C:\Program Files\Microsoft Visual Studio 9.0\VC>

Enter the value of A,B, & C

4

10

2

The Roots are Real roots...

The Roots are ......:-0.219223593595585 and-2.28077640640442

Enter the value of A,B, & C10

4

6

The Roots are Imaginary roots...

The Root one.......: -0.2 +i0.748331477354788

The Roots are.......: -0.2 -i0.748331477354788

Enter the value of A,B, & C

2

8

8

The Roots are Repeated roots...The Root is.....:-2

4. Write a Program in C# to demonstrate boxing and unBoxing.using System;using System.Collections.Generic; using System.Linq;using System.Text;


classBoxUnbox{


int num;Console.WriteLine("Enter the number");num = int.Parse(Console.ReadLine());Object obj = num;Console.WriteLine("Value in num is: {0}",num);Console.WriteLine("Value in Object is: {0}",obj);


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int n;n = (int)obj;Console.WriteLine("Value in n is: {0}", +n);Console.ReadLine();

}}

}

Enter the number

5

Value in num is: 5

Value in Object is: 5

Value in n is: 5

Enter the number

10

Value in num is: 10

Value in Object is: 10Value in n is: 10

5. Write a Program in C# to implement Stack operations. using System;


classStackOperation{

publicstaticvoid Main(string[] args)

{int top = -1, num, choice, max, rpt = 1; int [] stack = newint[20];Console.WriteLine("Enter the Maximum Limit");max = int.Parse(Console.ReadLine());while (rpt != 0){

Console.WriteLine("Stack Operation:");Console.WriteLine("1: PUSH");Console.WriteLine("2: POP");Console.WriteLine("3: DISPLAY");Console.WriteLine("0: EXIT");choice = int.Parse(Console.ReadLine());switch (choice){

case 1:if (top == (max - 1)){

Console.WriteLine("Stack is full");}else{


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Console.WriteLine("Enter the element to beinserted");

num = int.Parse(Console.ReadLine());stack[++top] = num;Console.WriteLine("Element is successfully

inserted.");}break;

case 2:if (top == -1){

Console.WriteLine("Stack is empty");}else{

Console.WriteLine("Deleted element is: " +stack[top--]);

}break;

case 3:if (top == -1){

Console.WriteLine("Stack is empty");}else{

Console.WriteLine("Elements in the Stack:");Console.WriteLine("-------------------------------

----------");for (int i = top; i >= 0; i--){

Console.WriteLine(stack[i]);}

}break;

case 0:Environment.Exit(0);break;

default:Console.WriteLine("Wrong entry");break;

}}

Console.ReadLine();}

}}


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6. Write a program to demonstrate Operator overloading.using System;using System.Collections.Generic;


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using System.Linq;using System.Text;


classOpertorOverlaoding{

publicstructComplex{

publicint real;publicint imaginary;public Complex (int real, int imaginary){

this.real = real;this.imaginary = imaginary;

}

//Declare which operator to overload (+) the types that canbe added (two Complex Objects) and the return type

// (Complex c1, Complex c2)

publicstaticComplexoperator +(Complex c1, Complex c2){

returnnewComplex(c1.real + c2.real, c1.imaginary +c2.imaginary);

}

// Override the tostring method to display an complex number insuitable format

publicoverridestring ToString(){

return(string.Format("{0} +{1}",real,imaginary));}

}

publicstaticvoid Main()

{Complex num1 = newComplex(2,3);Complex num2 = newComplex(3,4);

// Add the two complex objects ( num1 and num2) through the overloadedplus operatorComplex sum = num1 + num2;// Print the numbers & the sum using the overridden tostring method.Console.WriteLine("First Complex number is: {0}", num1);Console.WriteLine("Second Complex number is: {0}", num2);

Console.WriteLine("----------------------------------");Console.WriteLine("The sum of the two number is: {0}", sum);Console.ReadLine();

}}

}


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7. Write a Program in C# to find the second largest element in a single dimensional array.

using System;namespace Labprogram7a{

classBiggest{

int[] a = { 1, 2, 3, 4 };publicvoid ReadElement(){

Console.WriteLine("\n Enter the elements");Console.WriteLine("------------------------------");for (int i = 0; i < a.Length; i++) {

a[i] = int.Parse(Console.ReadLine());}Console.WriteLine("------------------------------");

}

publicvoid PrintElement()

{Console.WriteLine("\n The elements are:");Console.WriteLine("------------------------------");for (int i = 0; i < a.Length; i++) {

Console.WriteLine(a[i]);}Console.WriteLine("------------------------------");

}publicvoid BigElement()


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{int big, secbig;big = secbig = 0;for (int i = 0; i < a.Length; i++) {

if (big < a[i]){

secbig = big;big = a[i];

}}

Console.WriteLine("first biggest element is: {0} and secondbiggest element is: {1}", big, secbig);

Console.ReadLine();}

}}

namespace Labprogram7a{

classBig{


Biggest MM = newBiggest();MM.ReadElement();MM.PrintElement();MM.BigElement();

}}

}


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8. Write a Program in C# to multiply to matrices using Rectangular arrays.using System;namespace LabProgram8{

classMatrixMultiplication{

int[,] a;int[,] b;int[,] c;

publicvoid ReadMatrix(){

Console.WriteLine("\n Size of Matrix 1:");Console.Write("\n Enter the number of rows in Matrix 1 :");int m = int.Parse(Console.ReadLine());Console.Write("\n Enter the number of columns in Matrix 1 :");int n = int.Parse(Console.ReadLine());a = newint[m, n];

Console.WriteLine("\n Enter the elements of Matrix 1:");for (int i = 0; i < a.GetLength(0); i++){

for (int j = 0; j < a.GetLength(1); j++){

a[i, j] = int.Parse(Console.ReadLine());}

}

Console.WriteLine("\n Size of Matrix 2 :");Console.Write("\n Enter the number of rows in Matrix 2 :");m = int.Parse(Console.ReadLine());Console.Write("\n Enter the number of columns in Matrix 2 :");

n = int.Parse(Console.ReadLine());b = newint[m, n];Console.WriteLine("\n Enter the elements of Matrix 2:");for (int i = 0; i < b.GetLength(0); i++){

for (int j = 0; j < b.GetLength(1); j++){

b[i, j] = int.Parse(Console.ReadLine());}

}}

publicvoid PrintMatrix(){

Console.WriteLine("\n Matrix 1:");for (int i = 0; i < a.GetLength(0); i++){

for (int j = 0; j < a.GetLength(1); j++){

Console.Write("\t" + a[i, j]);}Console.WriteLine();

}Console.WriteLine("\n Matrix 2:");


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for (int i = 0; i < b.GetLength(0); i++){

for (int j = 0; j < b.GetLength(1); j++){

Console.Write("\t" + b[i, j]);}Console.WriteLine();

}Console.WriteLine("\n Resultant Matrix after multiplying Matrix 1

& Matrix 2:");for (int i = 0; i < c.GetLength(0); i++){

for (int j = 0; j < c.GetLength(1); j++){

Console.Write("\t" + c[i, j]);}Console.WriteLine();

}Console.ReadLine();

}publicvoid MultiplyMatrix(){

if (a.GetLength(1) == b.GetLength(0)){

c = newint[a.GetLength(0), b.GetLength(1)];for (int i = 0; i < c.GetLength(0); i++){

for (int j = 0; j < c.GetLength(1); j++){

c[i, j] = 0;for (int k = 0; k < a.GetLength(1); k++) // OR

k


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MatrixMultiplication MM = newMatrixMultiplication();MM.ReadMatrix();MM.MultiplyMatrix();MM.PrintMatrix();

}}

}


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9.

Find the sum of all the elements present in a jagged array of 3 inner arrays.

using System;namespace LabProgram9{

classJagArray{


int[][] myJagArray = newint[3][];


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

myJagArray[i] = newint[i + 3];}for (int i = 0; i < 3; i++){

Console.WriteLine("Enter {1} elements of row {0}",i,myJagArray[i].Length);

for (int j = 0; j < myJagArray[i].Length; j++){

myJagArray[i][j] = int.Parse(Console.ReadLine());}Console.WriteLine();

}int sum = 0;for (int i = 0; i < 3; i++){

for (int j = 0; j < myJagArray[i].Length; j++){

sum += myJagArray[i][j];

}Console.WriteLine("The sum of jagged array is {0}", sum);Console.ReadLine();

}}

}}


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1. Write a program to reverse a given string using C#.using System;namespace LabProgram10{

classRevStr{

publicstaticstring Reverse(string str){

int len = str.Length;char[] arr = newchar[len];for (int i = 0; i < len; i++){

arr[i] = str[len - 1 - i]; }returnnewstring(arr);

}publicstaticvoid Main(string[] args){

string str;

string revstr;Console.WriteLine("Enter the string to be reversed");str = Console.ReadLine();revstr = Reverse(str);Console.WriteLine("--------------------------------------");Console.WriteLine("The reverse of a string is {0}:",revstr);Console.ReadLine();

}}

}


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2. Using Try, Catch and Finally blocks write a program in C# to demonstrateerror handling.

using System;namespace LabProgram11{

classTryCatch{publicstaticvoid Main(string[] args){

int a, b = 0;Console.WriteLine("My program starts");try{

a = 10 / b;}catch (InvalidCastException e){

Console.WriteLine(e);}

catch (DivideByZeroException e){

Console.WriteLine(e);}finally{

Console.WriteLine("finally");}Console.WriteLine("Remaining program");Console.ReadLine();

}}

}


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1. Design a simple calculator using Switch Statement in C#.using System;using System.Collections.Generic; using System.Linq;using System.Text;


classSimpleCalculator{


double a, b, rpt = 1;int choice;while (rpt != 0){

Console.WriteLine("Select the operation:");Console.WriteLine("1: Addition");Console.WriteLine("2: Subtraction");

Console.WriteLine("3: Multiplication");Console.WriteLine("4: Division");Console.WriteLine("0: Exit");Console.WriteLine("Enter your choice:");Console.WriteLine("--------------------");choice = int.Parse(Console.ReadLine());switch (choice){

case 1:Console.WriteLine("Enter the two numbers:");a = double.Parse(Console.ReadLine());b = double.Parse(Console.ReadLine());Console.WriteLine("The result of addition is:" + (a +

b));

Console.WriteLine();break;

case 2:Console.WriteLine("Enter the two numbers:");a = double.Parse(Console.ReadLine());b = double.Parse(Console.ReadLine());Console.WriteLine("The result of subtraction is:" +

(a - b));break;

case 3:Console.WriteLine("Enter the two numbers:");

a = double.Parse(Console.ReadLine());b = double.Parse(Console.ReadLine());Console.WriteLine("The result of multiplication is:"

+ (a * b));break;

case 4:Console.WriteLine("Enter the two numbers:");a = double.Parse(Console.ReadLine());b = double.Parse(Console.ReadLine());


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if (b == 0){

Console.WriteLine("Division is not possible");}else{

Console.WriteLine("The result of division is:" +(a / b));

}break;

case 0:rpt = 0;break;

default:Console.WriteLine("Invalid selection:");break;

}}

Console.ReadLine();

}}

}


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2.Demonstrate Use of Virtual and override key words in C# with a simple program

using System;using System.Collections.Generic;


publicclassCustomer{

publicvirtualvoid CustomerType()


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{Console.WriteLine("I am a Customer");

}}

publicclassCorporateCustomer : Customer{

publicoverridevoid CustomerType(){

Console.WriteLine("I am a Corporate Customer");}

}

publicclassPersonalComputer : Customer{

publicoverridevoid CustomerType(){

Console.WriteLine("I am a Personal Customer");}

}

classProgram{

staticvoid Main(string[] args){

Customer[] c = newCustomer[3];c[0] = newPersonalComputer();c[1] = newCorporateCustomer();c[2] = newCustomer();foreach (Customer CustomerObject in c){

CustomerObject.CustomerType(); }Console.ReadLine();

}}

}


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3. Implement linked lists in C# using the existing collections name space.using System;using System.Collections.Generic; using System.Linq;using System.Text;


classLinkedlist{


LinkedList obj = newLinkedList();LinkedListNode f = null;obj.AddFirst(10);obj.AddLast(50);Console.WriteLine("The elements in the linked kist are:");foreach(int i in obj)

Console.WriteLine(i);obj.RemoveFirst();Console.WriteLine("The elements in the linked list after

deleting are:");foreach (int i in obj)

Console.WriteLine(i);Console.ReadLine();

}}

}


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4.Write a program to demonstrate abstract class and abstract methods in C#.using System;using System.Collections.Generic; using System.Linq;using System.Text;


abstractclassShape

{abstractpublicvoid show();

}}


classCircle : Shape{

publicoverridevoid show(){

Console.WriteLine("We are in Circle");}

}}


classTriangle : Shape{

publicoverridevoid show(){

Console.WriteLine("We are in Triangle");


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}}

}


classAbstractclassmethod{


Circle c = newCircle();Triangle t = newTriangle();c.show();t.show();Console.ReadLine();

}}

}

5.Write a program in C# to build a class which implements an interface which is already existing.using System;

using System.Collections.Generic; using System.Linq;using System.Text;


interfaceShape{

void Show();}


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}

using System;using System.Collections.Generic; using System.Linq;using System.Text;


classTriangle:Shape{

#region Shape Members

voidShape.Show(){

Console.WriteLine("I am printing from a Triangle");}

#endregion}

}



classCircle:Shape{

#region Shape Members

voidShape.Show(){

Console.WriteLine("I am printing from Circle");}

#endregion}

}

using System;using System.Collections.Generic; using System.Linq;

using System.Text;


classInterfaceExample{


Circle c = newCircle();Triangle t = newTriangle();


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Shape s;s = c;s.Show();s = t;s.Show();Console.ReadLine();

}}

}

6. Write a program to illustrate the use of different properties in C#.using System;using System.Collections.Generic; using System.Linq;using System.Text;


classEmployee

{ privatestring ename, eid;int eage;double esalary;public Employee(string eid){

this.eid = eid;

}publicstring EmployeeName


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{get{

return ename;}set{

ename = value;}

}

publicstring Employeeid{

get{

return eid;}

}

publicint EmployeeAge

{get{

return eage;}set{

eage = value;}

}

publicdouble EmployeeSalary{

get{

return esalary;}set{

esalary = value;}

}}

}


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7. Demonstrate arrays of interface types with a C# program.



interfaceInter{

void info();}

}



classStudent:Inter{privatestring name, usn;public Student(string name, string usn){

this.name = name;this.usn = usn;

}publicvoid info(){


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Console.WriteLine("Name is: {0}\n ID is:{1}", name, usn);}

publicoverridestring ToString(){

return (name + "" + usn);}

}}



classEmp:Inter{

privatestring name, id;

public Emp(string name, string id){

this.name = name;this.id = id;

}

publicvoid info(){

Console.WriteLine("Name is: {0}\n ID is:{1}", name, id);}

}}



classArrayInterfaceExample{


Inter[] obj = { newStudent("Raju", "10MCA01"), newEmp("Rahul",

"e100"), newStudent("Suresh", "10MCA02") };foreach (Inter s in obj)

Console.WriteLine(s);Console.ReadLine();

}}

}


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