While Loop Program Using C# | While Loop Example

This simple program demonstrate the use of while loop in C#. While loop run until condition reaches to false.

Code for While Loop:

using System;
using System.Text;
using System.Data;
namespace Console_App
{
    public class clsWhileLoop
    {
        public static void Main()
        {
            try
            {
                Console.WriteLine("Enter a number:");
                int GivenNumber = Convert.ToInt16(Console.ReadLine());
                while (GivenNumber < 10)
                {
                    Console.WriteLine("Loop Count {0} ", GivenNumber);
                    GivenNumber++;
                }
            }
            catch (Exception ex)
            {
                //handle exception here
            }
            Console.ReadLine();
        }
    }
}

How to use If Else in C# | If Else Example using C#

 

This is program of If Else complex and simple examples. This example shows the exact use of If Else statement in C#.

Source Code of If Else Example:

using System;
using System.Text;
using System.Data;
namespace Console_App
{
    public class clsIfElase
    {
        public static void Main()
        {
            try
            {            
                int iInt;

                Console.Write("Enter a number for IF Else Example: ");            
                iInt = Int32.Parse(Console.ReadLine());
                if (iInt > 0)
                {
                    Console.WriteLine("{0} is greater than zero.", iInt);
                }

               if (iInt < 0)
                    Console.WriteLine("{0} is less than zero.", iInt);

                //simple example
                if (iInt != 0)
                {
                    Console.WriteLine("{0} is not equal to zero.", iInt);
                }
                else
                {
                    Console.WriteLine("{0} is equal to zero.", iInt);
                }
                //complex example
                if (iInt < 0 || iInt == 0)
                {
                    Console.WriteLine("{0} is less than or equal to zero.", iInt);
                }
                else if (iInt > 0 && iInt < 100)
                {
                    Console.WriteLine("{0} is between 1 and 100.", iInt);
                }
                else if (iInt > 101 && iInt < 200)
                {
                    Console.WriteLine("{0} is between 101 and 200.", iInt);
                }
                else if (iInt > 201 && iInt < 300)
                {
                    Console.WriteLine("{0} is between 201 and 300.", iInt);
                }
                else
                {
                    Console.WriteLine("{0} is greater than 300.", iInt);
                }
            }
            catch (Exception ex)
            {
                //handle exception here
            }
            Console.ReadLine();
        }
    }
}

How to use Array in C# | C# Array Examples

 

This is simple example to demonstrate the use of array. Please send us email or comment below if you feel any problem while using arrays.

using System;
using System.Text;
using System.Data;
namespace Console_App
{
    public class clsArray
    {
        public static void Main()
        {
            try
            {
                int[] iInts = { 15, 20, 25 };
                bool[][] bBools = new bool[2][];
                bBools[0] = new bool[2];
                bBools[1] = new bool[1];
                double[,] dDoubles = new double[2, 2];
                string[] sStrings = new string[3];
                Console.WriteLine("Arrya Example");
                Console.WriteLine();

                Console.WriteLine("iInts[0]: {0}, iInts[1]: {1}, iInts[2]: {2}", iInts[0], iInts[1], iInts[2]);

                bBools[0][0] = false;
                bBools[0][1] = false;
                bBools[1][0] = true;
                Console.WriteLine("bBools[0][0]: {0}, bBools[1][0]: {1}", bBools[0][0], bBools[1][0]);

                dDoubles[0, 0] = 2.11;
                dDoubles[0, 1] = 1.830;
                dDoubles[1, 1] =11.111;
                dDoubles[1, 0] = 55.55667788;
                Console.WriteLine("dDoubles[0,0]: {0}, dDoubles[1,0]: {1}", dDoubles[0, 0], dDoubles[1, 0]);

                sStrings[0] = "Csharptalk.com";
                sStrings[1] = "Indihub.com";
                sStrings[2] = "bharatclick.com";
                Console.WriteLine("sStrings[0]: {0}, sStrings[1]: {1}, sStrings[2] {2}", sStrings[0], sStrings[1], sStrings[2]);
            }
            catch (Exception ex)
            {
                //handle exception here
            }
            Console.ReadLine();
        }
    }
}

Demo of Binary Operations in C#

Binary Operations are performed between two operands. here is few C# binary operation and their results.

Code:

using System;
using System.Text;
using System.Data;
namespace Console_App
{
    public class clsBinaryOperations
    {
        public static void Main()
        {
            try
            {
                int value1, value2, result;
                float floatResult;

                Console.WriteLine("Program for Binary Operations in C#");

                value1 = 5;
                value2 = 9;

                Console.WriteLine("Value of value1: {0}", value1);
                Console.WriteLine("Value of value2: {0}", value2);

                result = value1 + value2;
                Console.WriteLine("Result of value1+value2: {0}", result);

                result = value1 - value2;
                Console.WriteLine("Result of value1-value2: {0}", result);

                result = value1 * value2;
                Console.WriteLine("Result of value1*value2: {0}", result);

                result = value1 / value2;
                Console.WriteLine("Result of value1/value2: {0}", result);

                floatResult = (float)value1 / (float)value2;
                Console.WriteLine("Result of (float)value1 / (float)value2: {0}", floatResult);

                result = value1 % value2;
                Console.WriteLine("Result of  value1%value2: {0}", result);

                result += value1;
                Console.WriteLine("Result of  result+=value1: {0}", result);
            }
            catch (Exception ex)
            {
                //handle exception here
            }
            Console.ReadLine();
        }
    }
}

C# Program to Calculate Square Root of a Number

To calculate Square root of a number there is a inbuilt function inside the Math class. So you can directly use this function to find out the Square root of a number.

 

C# Program to Calculate Square Root of a Number

using System;
using System.Text;
using System.Collections;
using System.Data;
namespace Console_App
{
    public class clsFactorial
    {      
        public static void Main()
        {
            try
            {
                Console.WriteLine("Enter a number for Square Root:");
                 int Number =Convert.ToInt16( Console.ReadLine());
                 double SqrtNumber = Math.Sqrt(Number);

                 Console.WriteLine("Square root of Number {0} is: {1}", Number, SqrtNumber);                   
            }
            catch(Exception ex)
            {
                //handle exception here
            }
            Console.ReadLine();           
        }
    }
}