Conver number to words (thousands) help

**JanineXD** · Mar 21 '10, 01:47 AM

Here's the updated program:

Code:

package num2word;

import java.util.Scanner;

public class NumbertoWords {

    // units Method
    public static void units(int n) {

        switch (n) {
            case 1:
                System.out.print("one ");
                break;
            case 2:
                System.out.print("two ");
                break;
            case 3:
                System.out.print("three ");
                break;
            case 4:
                System.out.print("four ");
                break;
            case 5:
                System.out.print("five ");
                break;
            case 6:
                System.out.print("six ");
                break;
            case 7:
                System.out.print("seven ");
                break;
            case 8:
                System.out.print("eight ");
                break;
            case 9:
                System.out.print("nine ");
                break;
        }
    }

    // special case Method
    public static void special(int n) {

        switch (n) {
            case 11:
                System.out.print(" eleven");
                break;
            case 12:
                System.out.print(" twelve");
                break;
            case 13:
                System.out.print(" thirteen");
                break;
            case 14:
                System.out.print(" fourteen");
                break;
            case 15:
                System.out.print(" fifteen");
                break;
            case 16:
                System.out.print(" sixteen");
                break;
            case 17:
                System.out.print(" seventeen");
                break;
            case 18:
                System.out.print(" eighteen");
                break;
            case 19:
                System.out.print(" nineteen");
                break;
        }
    }

    // tens Method
    public static void tens(int n) {

        switch (n) {
            case 1:
                System.out.print(" ten ");
            case 2:
                System.out.print(" twenty ");
                break;
            case 3:
                System.out.print(" thirty ");
                break;
            case 4:
                System.out.print(" forty ");
                break;
            case 5:
                System.out.print(" fifty ");
                break;
            case 6:
                System.out.print(" sixty ");
                break;
            case 7:
                System.out.print(" seventy ");
                break;
            case 8:
                System.out.print(" eighty ");
                break;
            case 9:
                System.out.print(" ninety ");
                break;
        }
    }

    // hundreds Method
    public static void hundreds(int n) {

        switch (n) {
            case 1:
                System.out.print("one hundred ");
                break;
            case 2:
                System.out.print("two hundred ");
                break;
            case 3:
                System.out.print("three hundred ");
                break;
            case 4:
                System.out.print("four hundred ");
                break;
            case 5:
                System.out.print("five hundred ");
                break;
            case 6:
                System.out.print("six hundred ");
                break;
            case 7:
                System.out.print("seven hundred ");
                break;
            case 8:
                System.out.print("eight hundred ");
                break;
            case 9:
                System.out.print("nine hundred ");
                break;
        }
    }
    // hundreds Method
    public static void thousands(int n) {

        switch (n) {
            case 1:
                System.out.print("one thousand ");
                break;
            case 2:
                System.out.print("two thousand ");
                break;
            case 3:
                System.out.print("three thousand ");
                break;
            case 4:
                System.out.print("four thousand ");
                break;
            case 5:
                System.out.print("five thousand ");
                break;
            case 6:
                System.out.print("six thousand ");
                break;
            case 7:
                System.out.print("seven thousand ");
                break;
            case 8:
                System.out.print("eight thousand ");
                break;
            case 9:
                System.out.print("nine thousand ");
                break;
        }
    }
    public static void main(String[] args) {
        Scanner input = new Scanner(System.in);

        // Requesting User input
        System.out.print("Enter an integer number[0 to 9999]::>> ");
        int number = input.nextInt();

        // input validation
        while (number < 0 || number > 9999) {
            System.out.println("Input Too Large, ");
            System.out.print("Enter an integer number[0 to 9999]::>> ");
            number = input.nextInt();
        }

        // Below we start <strong class="highlight">to</strong> determine what the input was by
        // categorising it using boolean

// thousands (1000-9999)
        if (number > 999 && number < 10000) {
            int t = number / 1000;    //find the hundreds only (one, two hundred)
            thousands(t);             //print number


            // first part of number found & printed (hundreds)
            // remamining 2 digits must be found ie tens & units

            // test if they are a special number
            int x = 0;               // initialized variable x for calculations
            x = number % 1000;        // find remainder of hundreds (ie x54)
            if (x > 10 && x < 20) {  // ie is 54 a special number?
                special(x);          // print number
            }
            // if not special number -> split up into tens & units
            if (x > 0 && x < 1000) {

                int hundreds = x / 100;   // finding the hundreds
                hundreds(hundreds);          // print number

                int tens = x / 10;   // finding the tens (forty, fifty)
                tens(tens);          // print number

                int units = x % 10;  // finding the units (one, two)
                units(units);        // print number
            }
        }
        // original number (100-999)
        if (number > 99 && number < 1000) {
            int h = number / 100;    //find the hundreds only (one, two hundred)
            hundreds(h);             //print number


            // first part of number found & printed (hundreds)
            // remamining 2 digits must be found ie tens & units

            // test if they are a special number
            int x = 0;               // initialized variable x for calculations
            x = number % 100;        // find remainder of hundreds (ie x54)
            if (x > 10 && x < 20) {  // ie is 54 a special number?
                special(x);          // print number
            }
            // if not special number -> split up into tens & units
            if (x > 0 && x < 100) {

                int tens = x / 10;   // finding the tens (forty, fifty)
                tens(tens);          // print number

                int units = x % 10;  // finding the units (one, two)
                units(units);        // print number
            }
        }

        // original number (20-99)
        if (number > 19 && number < 100) {

            int t = number / 10;     // finding the tens (forty, fifty)
            tens(t);                 // print number

            int u = number % 10;     // finding the units (one, two)
            units(u);                // print number
        }

        // original number (11-19) (Special <strong class="highlight">numbers</strong>)
        if (number > 10 && number < 20) { // (Special <strong class="highlight">numbers</strong>)
            special(number);         // print number
        }

        // original number (0-9)
        if (number < 10) {           // finding the units (one, two)
            units(number);           // print number
        }
    }
}

The output is:

Code:

Enter an integer number[0 to 999]::>> 5670
five thousand six hundred 
Process completed.

I dont know where the problem is.
help please?

thanks!

**sukatoa** · Mar 21 '10, 02:44 AM

I guess it would be simpler if you convert the input value into a string. access the element of that string and get the representation. ...

**JanineXD** · Mar 21 '10, 03:06 AM

like this one?

Code:

public class NumberToWords {

	private static final String[] ONES = {
		"Zero", "One", "Two", "Three", "Four", "Five",
		"Six", "Seven", "Eight", "Nine" };
	private static final String[] TEENS = {
		"Ten", "Eleven", "Twelve", "Thirteen", null, "Fifteen",
		null, null, "Eighteen", null };
	private static final String[] TENS = {
		null, null, "Twenty", "Thirty", "Forty", "Fifty",
		"Sixty", "Seventy", "Eighty", "Ninety" };

	public static String numberToWords(int number) {
		if (number<10) {
			return ONES[number];
		} else if (number<20) {
			int n = number - 10;
			String words = TEENS[n];
			return words==null ? ONES[n]+"teen" : TEENS[n];
		} else {
			int n = number % 10;
			return TENS[number/10] +
				(n==0 ? "" : (" " + numberToWords(n)));
		}
	}

	public static void main(String[] args) {
		for (int i=0; i<100; i++) {
			System.out.println(i+" "+numberToWords(i));
		}
	}
}

**jkmyoung** · Mar 22 '10, 02:44 PM

First off, split the cases up smarter. eg pseudocode:

Code:

Currently you have:
if (thousands){
  print thousands
  print hundreds
  print special
  print tens
  print ones
} else {
  print hundreds
  print special
  print tens
  print ones 
}

Whereas, to simplify the code, you really should have:
If (thousands?)
  Print thousands
if (hundreds?)
  Print hundreds
if (special?){
  print special
} else {
  print tens
  print ones
}

ALSO!! You could simply add a case 0:
case 0: // output nothing
break;

2. the way you're getting your tens digit is off.
int tens = x / 10;
should be
int tens = x/10 % 10;

You can do this for all of your number parts. eg
thousands = number / 1000 % 10;
hundreds = number / 100 % 10;
tens = number / 10 % 10;
units = number % 10;

Conver number to words (thousands) help

Conver number to words (thousands) help

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