# Programming Tutorials

## Converting a number into its equalant value in words in Java

By: Ganesh Iyer Printer Friendly Format

In this tutorial, i will explain how a number can be converted to its value as a word using Java. If you are wondering how and where this can be used, take the example of Money values. If the Amount is in numbers and you would like to convert the amount in words then this program will be useful for you.

/* Author         - Ganesh Iyer
Program        - Displaying the input number into words
Written on     - 06-06-2009 */

``` class constNumtoLetter   {       String[] unitdo ={"", " One", " Two", " Three", " Four", " Five",          " Six", " Seven", " Eight", " Nine", " Ten", " Eleven", " Twelve",          " Thirteen", " Fourteen", " Fifteen",  " Sixteen", " Seventeen",           " Eighteen", " Nineteen"};       String[] tens =  {"", "Ten", " Twenty", " Thirty", " Forty", " Fifty",          " Sixty", " Seventy", " Eighty"," Ninety"};       String[] digit = {"", " Hundred", " Thousand", " Lakh", " Crore"};      int r;       //Count the number of digits in the input number       int numberCount(int num)       {           int cnt=0;           while (num>0)           {             r = num%10;             cnt++;             num = num / 10;           }             return cnt;       }       //Function for Conversion of two digit       String twonum(int numq)       {            int numr, nq;            String ltr=\"";            nq = numq / 10;            numr = numq % 10;            if (numq>19)              {            ltr=ltr+tens[nq]+unitdo[numr];              }            else              {            ltr = ltr+unitdo[numq];              }            return ltr;       }       //Function for Conversion of three digit       String threenum(int numq)       {              int numr, nq;              String ltr = "";              nq = numq / 100;              numr = numq % 100;              if (numr == 0)               {               ltr = ltr + unitdo[nq]+digit;                }              else               {               ltr = ltr +unitdo[nq]+digit+" and"+twonum(numr);               }              return ltr;       } }  class originalNumToLetter    {       public static void main(String[] args) throws Exception       {           //Defining variables q is quotient, r is remainder           int len, q=0, r=0;           String ltr = " ";           String Str = "Rupees";           constNumtoLetter n = new constNumtoLetter();           int num = Integer.parseInt(args);           if (num <= 0) System.out.println(\"Zero or Negative number not for conversion");           while (num>0)           {              len = n.numberCount(num);              //Take the length of the number and do letter conversion              switch (len)              {                   case 8:                           q=num/10000000;                           r=num%10000000;                           ltr = n.twonum(q);                           Str = Str+ltr+n.digit;                           num = r;                           break;                   case 7:                   case 6:                           q=num/100000;                           r=num%100000;                           ltr = n.twonum(q);                           Str = Str+ltr+n.digit;                           num = r;                           break;                   case 5:                   case 4:                            q=num/1000;                            r=num%1000;                            ltr = n.twonum(q);                            Str= Str+ltr+n.digit;                            num = r;                            break;                   case 3:                             if (len == 3)                                 r = num;                             ltr = n.threenum(r);                             Str = Str + ltr;                             num = 0;                             break;                   case 2:                            ltr = n.twonum(num);                            Str = Str + ltr;                            num=0;                            break;                   case 1:                            Str = Str + n.unitdo[num];                            num=0;                            break;                   default:                           num=0;                           System.out.println(\"Exceeding Crore....No conversion");                           System.exit(1);               }                           if (num==0)                           System.out.println(Str+\" Only");             }          }       } ```
To Execute

java originalNumToLetter <INPUT>

Ex -   java originalNumToLetter 1234

Output

Rupees One Thousand Two Hundred and Thirty Four Only

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Comment on this tutorial

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1. Thanks and easy to understand.....impressive logic
View Tutorial          By: Dj at 2009-11-26 13:33:34

2. Thanks alot.. it helped me a lot...
View Tutorial          By: Sushmitha Rao at 2010-06-02 02:39:51

3. really helpul........
pls mail me some more

View Tutorial          By: shivani at 2010-07-17 01:47:30

4. //Convert numbers to word as per Indian number sys
View Tutorial          By: Abhishek at 2011-09-05 10:42:20

5. Thanks a ton Ganesh...
View Tutorial          By: Anonymous at 2012-01-25 11:20:40

6. What is the \ in several of the string building st
View Tutorial          By: rogerb at 2012-01-28 23:07:31

7. thank for the code...
how to print same out

View Tutorial          By: Ajay at 2012-04-01 17:29:15

8. Thanks a lot for valuable program.

View Tutorial          By: Kailash at 2012-07-30 10:09:12

9. really helpul........
pls mail me some more

View Tutorial          By: senthil at 2013-08-19 17:53:02

10. input 325
output :three two five

View Tutorial          By: jyothi at 2015-12-16 09:17:30

11. I need simple logic
View Tutorial          By: AshLii MaHii at 2016-06-18 02:10:16

12. excelent logic.
View Tutorial          By: naresh boorla at 2016-09-27 04:40:42

13. do you have a program that can accept floating num
View Tutorial          By: jhay at 2016-10-21 10:23:38

14. L'occasion d'installer une caméra cach&eacu
View Tutorial          By: camera caché at 2017-09-21 11:14:40