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Wednesday, 26 July 2017

Simple program


Simple program #13 (Source code to calculate number of digits)

Enter a number: 456
Number of digits used in given number 456 is 3

The program is written in C# programming language and will accept a number as input. The logic of the program is to counter number of digits.
 
Simple program by imagination hunt blogs
Simple program

Note: If you are new to C# and Console Application. Try to code First C# Program

Note: Read articles on how to use Loops and Conditions.

Let’s find out a simple and easy way to code the program.

Practical Implementation:

using System;

namespace patternProblem.Simple_program
{
    class Simple13   //Calculating number of digits
    {
        static void Main(string[] args)
        {
            Console.Write("Enter a number: ");
            int n = Convert.ToInt32(Console.ReadLine());
            int count = 0;
            Console.WriteLine();

            //Method 1: Using string in-built function length
            Console.WriteLine("Output from Method1: Using string in-built function length");
            Console.WriteLine("Number of digits used in given number {0} is {1}", n, n.ToString().Length);
            Console.WriteLine();

            //Method 2: Using for loop
            int temp = n;
            for (; n > 0; )
            {
                n = n / 10;
                count++;
            }
            Console.WriteLine("Output from Method2: Using for loop");
            Console.WriteLine("Number of digits used in given number {0} is {1}", temp, count.ToString());
            Console.WriteLine();

            //Method 3: Using while loop
            count = 0;
            n = temp;
            while (n > 0)
            {
                n = n / 10;
                count++;
            }
            Console.WriteLine("Output from Method3: Using while loop");
            Console.WriteLine("Number of digits used in given number {0} is {1}", temp, count.ToString());
            Console.ReadKey();
        }
    }
}

Output:
The input number is 4256. The program will count number of digits used in input number. The output is shown below:

Enter a number: 4256

Output from Method1: Using string in-built function length
Number of digits used in given number 4256 is 4

Output from Method2: Using for loop
Number of digits used in given number 4256 is 4

Output from Method3: Using while loop
Number of digits used in given number 4256 is 4
Press any key to continue . . .


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