C# Program to Find Odd Number Series

C# Program to Find Odd Number Series

C# program is used to find the odd number series till the required numbers count which provided as user input.

In this C# program, number of odd elements to be computed for the series is the input and computes odd number series based onn the user input 'numOfElements'.

/*
 This C# program to display odd number series.
 Also added single and multiline comments.
 */
using System; // System is a namespace

public class OddNumberSeries
{
    // Main method which starts the program execution.
    public static void Main()
    {
        int num = 0, count = 0, numOfElements;
        Console.Write("Enter number of elements:");
        numOfElements = int.Parse(Console.ReadLine()); 
        Console.WriteLine("Odd Number Series:");
        
        while(count<=numOfElements)
        {
            if(num%2 == 0)
            {
                num++;
            }
            else
            {
                Console.Write(num+"\t");
                num++;
                count++;
            }
        }
        
        Console.ReadKey();
    }
}

                                                            

Output:

C:> csc OddNumberSeries.cs
C:> OddNumberSeries
Enter number of elements:10
Odd Number Series:
1       3       5       7       9       11      13      15      17      19      21

Above C# program is refactered and can written as below also,

using System; // System is a namespace

public class OddNumberSeries
{
    // Main method which starts the program execution.
    public static void Main()
    {
        int num = 0, count = 0, numOfElements;
        Console.Write("Enter number of elements:");
        numOfElements = int.Parse(Console.ReadLine()); 
        Console.WriteLine("Odd Number Series:");
        
        while(count<=numOfElements)
        {
            if(num%2 != 0)
            {
                Console.Write(num+"\t");
                count++;
            }
            num++;
        }
        
        Console.ReadKey();
    }
}

Output:

C:> csc OddNumberSeries.cs
C:> OddNumberSeries
Enter number of elements:10
Odd Number Series:
1       3       5       7       9       11      13      15      17      19      21