How to Convert Numbers to Words in C#?

C#digital transfer text detailed explanation

Converting numbers into text is a common task in programming. C# provides a direct method to implement this function. The following code example can be used as your starting point:

code points:

<code class="language-csharp">public static string NumberToWords(int number)
{
    string words = "";

    if (number < 0)
    {
        words += "minus ";
        number = -number;
    }

    if (number == 0)
        return "zero";

    if (number >= 1000000)
    {
        words += NumberToWords(number / 1000000) + " million ";
        number %= 1000000;
    }

    if (number >= 1000)
    {
        words += NumberToWords(number / 1000) + " thousand ";
        number %= 1000;
    }

    if (number >= 100)
    {
        words += NumberToWords(number / 100) + " hundred ";
        number %= 100;
    }

    if (number > 0)
    {
        if (words != "")
            words += "and ";

        string[] unitsMap = { "zero", "one", "two", "three", "four", "five", "six", "seven", "eight", "nine", "ten", "eleven", "twelve", "thirteen", "fourteen", "fifteen", "sixteen", "seventeen", "eighteen", "nineteen" };
        string[] tensMap = { "zero", "ten", "twenty", "thirty", "forty", "fifty", "sixty", "seventy", "eighty", "ninety" };

        if (number < 20)
            words += unitsMap[number];
        else
        {
            words += tensMap[number / 10];
            if (number % 10 > 0)
                words += "-" + unitsMap[number % 10];
        }
    }

    return words.Trim();
}</code>

The function receives an integer as the input and returns a string of the form representation form.

• The function processs negative numbers, and "minus" is added in front of the positive text after the conversion. NumberToWords
The function is grouped by the number of millions, thousands, and hundreds of them. For each group, it iterates the number and converts them into text, and uses
• and
arrays.
• unitsMap Functions add appropriate connector ("million", "thousand", "hundred" and "and") to form a final string. tensMap
• This code can be used as a starting point for processing more complicated scenes, such as the number exceeding the range (-1000, 1000) or the number containing comma.

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