C# program to convert numbers to words

First, declare the words from 0 to 9 -

// words for every digits from 0 to 9
string[] digits_words = { "zero", "one", "two",
   "three", "four", "five",
   "six", "seven", "eight",
   "nine"
};

The following are the numbers to be converted to words-

// number to be converted into words
val = 4677;
Console.WriteLine("Number: " + val);

Use a loop Check each digit in the given number and convert it to word -

do {
   next = val % 10;
   a[num_digits] = next;
   num_digits++;
   val = val / 10;
} while(val > 0);

Example

You can try running the following code to convert number to word.

Live Demo

using System;
using System.Collections.Generic;
using System.Text;
namespace Demo {
   class MyApplication {
      static void Main(string[] args) {
         int val, next, num_digits;
         int[] a = new int[10];
         // words for every digits from 0 to 9
         string[] digits_words = {
            "zero",
            "one",
            "two",
            "three",
            "four",
            "five",
            "six",
            "seven",
            "eight",
            "nine"
         };
         // number to be converted into words
         val = 4677;
         Console.WriteLine("Number: " + val);
         Console.Write("Number (words): ");
         next = 0;
         num_digits = 0;
         do {
            next = val % 10;
            a[num_digits] = next;
            num_digits++;
            val = val / 10;
         } while (val > 0);
         num_digits--;
         for (; num_digits >= 0; num_digits--)
         Console.Write(digits_words[a[num_digits]] + " ");
         Console.ReadLine();
      }
   }
}

Output

Number: 4677
Number (words): four six seven seven 

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