he intName method in the "Problem Solving: Stepwise Refinement" section accepted arguments < 1,000. Using a recursive call, extend its range to 999,999. For example an input of 12,345 should return " twelve thousand three hundred forty five". Note that some number names may have extra spaces at the beginning or end. import java.util.Scanner; public class IntegerName { /** Turns a number into its English name. @param number a positive integer < 999,999 @return the name of the number (e.g. "two hundred seventy four") */ public static String intName(int number) { int part = number; // The part that still needs to be converted String name = ""; // The name of the number if (part >= 1000) { // Recursively call intName } if (part >= 100) { name = digitName(part / 100) + " hundred"; part = part % 100; } if (part >= 20) { name = name + " " + tensName(part); part = part % 10; } else if (part >= 10) { name = name + " " + teenName(part); part = 0; } if (part > 0) { name = name + " " + digitName(part); } return name; } /** Turns a digit into its English name. @param digit an integer between 1 and 9 @return the name of digit ("one" ... "nine") */ public static String digitName(int digit) { if (digit == 1) { return "one"; } if (digit == 2) { return "two"; } if (digit == 3) { return "three"; } if (digit == 4) { return "four"; } if (digit == 5) { return "five"; } if (digit == 6) { return "six"; } if (digit == 7) { return "seven"; } if (digit == 8) { return "eight"; } if (digit == 9) { return "nine"; } return ""; } /** Turns a number between 10 and 19 into its English name. @param number an integer between 10 and 19 @return the name of the given number ("ten" ... "nineteen") */ public static String teenName(int number) { if (number == 10) { return "ten"; } if (number == 11) { return "eleven"; } if (number == 12) { return "twelve"; } if (number == 13) { return "thirteen"; } if (number == 14) { return "fourteen"; } if (number == 15) { return "fifteen"; } if (number == 16) { return "sixteen"; } if (number == 17) { return "seventeen"; } if (number == 18) { return "eighteen"; } if (number == 19) { return "nineteen"; } return ""; } /** Gives the name of the tens part of a number between 20 and 99. @param number an integer between 20 and 99 @return the name of the tens part of the number ("twenty" ... "ninety") */ public static String tensName(int number) { if (number >= 90) { return "ninety"; } if (number >= 80) { return "eighty"; } if (number >= 70) { return "seventy"; } if (number >= 60) { return "sixty"; } if (number >= 50) { return "fifty"; } if (number >= 40) { return "forty"; } if (number >= 30) { return "thirty"; } if (number >= 20) { return "twenty"; } return ""; } public static void main(String[] args) { Scanner in = new Scanner(System.in); int number = in.nextInt(); System.out.println(intName(number)); } } 1: Compare output Input 1000 Your output one thousand 2: Compare output Output differs. See highlights below. Special character legend Input 12345 Your output three hundred forty five Expected output twelve thousand three hundred forty five 3: Compare output Output differs. See highlights below. Special character legend Input 75915 Your output nine hundred fifteen Expected output seventy five thousand nine hundred fifteen with out changing any code.
The intName method in the "Problem Solving: Stepwise Refinement" section accepted arguments < 1,000. Using a recursive call, extend its range to 999,999. For example an input of 12,345 should return " twelve thousand three hundred forty five". Note that some number names may have extra spaces at the beginning or end. import java.util.Scanner; public class IntegerName { /** Turns a number into its English name. @param number a positive integer < 999,999 @return the name of the number (e.g. "two hundred seventy four") */ public static String intName(int number) { int part = number; // The part that still needs to be converted String name = ""; // The name of the number if (part >= 1000) { // Recursively call intName } if (part >= 100) { name = digitName(part / 100) + " hundred"; part = part % 100; } if (part >= 20) { name = name + " " + tensName(part); part = part % 10; } else if (part >= 10) { name = name + " " + teenName(part); part = 0; } if (part > 0) { name = name + " " + digitName(part); } return name; } /** Turns a digit into its English name. @param digit an integer between 1 and 9 @return the name of digit ("one" ... "nine") */ public static String digitName(int digit) { if (digit == 1) { return "one"; } if (digit == 2) { return "two"; } if (digit == 3) { return "three"; } if (digit == 4) { return "four"; } if (digit == 5) { return "five"; } if (digit == 6) { return "six"; } if (digit == 7) { return "seven"; } if (digit == 8) { return "eight"; } if (digit == 9) { return "nine"; } return ""; } /** Turns a number between 10 and 19 into its English name. @param number an integer between 10 and 19 @return the name of the given number ("ten" ... "nineteen") */ public static String teenName(int number) { if (number == 10) { return "ten"; } if (number == 11) { return "eleven"; } if (number == 12) { return "twelve"; } if (number == 13) { return "thirteen"; } if (number == 14) { return "fourteen"; } if (number == 15) { return "fifteen"; } if (number == 16) { return "sixteen"; } if (number == 17) { return "seventeen"; } if (number == 18) { return "eighteen"; } if (number == 19) { return "nineteen"; } return ""; } /** Gives the name of the tens part of a number between 20 and 99. @param number an integer between 20 and 99 @return the name of the tens part of the number ("twenty" ... "ninety") */ public static String tensName(int number) { if (number >= 90) { return "ninety"; } if (number >= 80) { return "eighty"; } if (number >= 70) { return "seventy"; } if (number >= 60) { return "sixty"; } if (number >= 50) { return "fifty"; } if (number >= 40) { return "forty"; } if (number >= 30) { return "thirty"; } if (number >= 20) { return "twenty"; } return ""; } public static void main(String[] args) { Scanner in = new Scanner(System.in); int number = in.nextInt(); System.out.println(intName(number)); } } 1: Compare output Input 1000 Your output one thousand 2: Compare output Output differs. See highlights below. Special character legend Input 12345 Your output three hundred forty five Expected output twelve thousand three hundred forty five 3: Compare output Output differs. See highlights below. Special character legend Input 75915 Your output nine hundred fifteen Expected output seventy five thousand nine hundred fifteen with out changing any code.
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