[Solved] Converting number to word

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First of all take hundreds place digit by deviding by 100 and print corresponding number by calling method numberToWord((number / 100), " HUNDRED"); since number / 100 would be in between 0 to 9 so it will print digit in word concatenated by HUNDRED.

Now you left with two digit number for that you directly call numberToWord((number % 100), " "); since we are taking modulo 100 of number so it would pass two digit only. if (num > 19) {System.out.print(tens[num / 10] + " " + ones[num % 10]);} then it will take tens place and print tens word concatenated by ones. else {System.out.print(ones[num]);} directly prints word between 1 to 19 from the array.

import java.util.Scanner;

public class Test1 {



        public static void main(String[] args) {
            int number = 0;
            Scanner scanner = new Scanner(System.in);
            System.out.print("Please type a number between 0 and 999 OR type -1 to exit:  ");
            number = scanner.nextInt();
            while(number!=-1){
                if(number>=0 && number<=999){
                    if(number==0){
                        System.out.print("NUMBER AFTER CONVERSION:\tZERO");
                    } else {
                        System.out.print("NUMBER AFTER CONVERSION:\t");
                        numberToWord(((number / 100) % 10), " HUNDRED");
                        numberToWord((number % 100), " ");
                    }

                } else{
                    System.out.print("NUMBER OUT OF RANGE");
                }
                System.out.print("\nPlease type a number between 0 and 999 OR type -1 to exit:  ");
                number = scanner.nextInt();
            }
        }

        public static void numberToWord(int num, String val) {
            String ones[] = {" ", " ONE", " TWO", " THREE", " FOUR", " FIVE", " SIX", " SEVEN", " EIGHT", " NINE", " TEN", " ELEVEN", " TWELVE", " THIRTEEN", " FOURTEEN", " FIFTEEN", " SIXTEEN", " SEVENTEEN", " EIGHTEEN", " NINETEEN"
            };
            String tens[] = {" ", " ", " TWENTY", " THIRTY", " FOURTY", " FIFTY", " SIXTY", " SEVENTY", " EIGHTY", " NINETY"};
            if (num > 19) {
                System.out.print(tens[num / 10] + " " + ones[num % 10]);
            } else {
                System.out.print(ones[num]);
            }
            if (num > 0) {
                System.out.print(val);
            }
        }
    }

Sample output:

Please type a number between 0 and 999 OR type -1 to exit:  563
NUMBER AFTER CONVERSION:     FIVE HUNDRED SIXTY  THREE 
Please type a number between 0 and 999 OR type -1 to exit:  45
NUMBER AFTER CONVERSION:      FOURTY  FIVE 
Please type a number between 0 and 999 OR type -1 to exit:  6 
NUMBER AFTER CONVERSION:      SIX 
Please type a number between 0 and 999 OR type -1 to exit:  0
NUMBER AFTER CONVERSION:    ZERO 
Please type a number between 0 and 999 OR type -1 to exit:  -1
exit

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solved Converting number to word