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Diffstat (limited to 'Java/Number_Names/src/Program.java')
| -rw-r--r-- | Java/Number_Names/src/Program.java | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/Java/Number_Names/src/Program.java b/Java/Number_Names/src/Program.java new file mode 100644 index 0000000..ed9ef79 --- /dev/null +++ b/Java/Number_Names/src/Program.java @@ -0,0 +1,124 @@ +import java.util.ArrayList; +import java.util.Scanner; + +public class Program { + + public static String[] digits = {"", "one", "two", "three", "four", "five", "six", "seven", "eight", "nine"}; + public static String[] teens = {"ten", "eleven", "twelve", "thirteen", "fourteen", "fifteen", "sixteen", "seventeen", "eighteen", "nineteen"}; + public static String[] tens = {"ten", "twenty", "thirty", "forty", "fifty", "sixty", "seventy", "eighty", "ninety"}; + + public static void main(String args[]){ + //Used http://www.englishlessonsbrighton.co.uk/saying-large-numbers-english/ and https://www.grammarly.com/blog/hyphen-in-compound-numbers/ + Scanner scn = new Scanner(System.in); + + System.out.println("Number to British English text"); + System.out.println("How to use: type a whole number, press enter and the program will say it's full proper name. Close the program to stop it."); + System.out.println("NOTE: Your numbers must be between 9223372036854775807 and –9223372036854775808 (any characters that are not numbers and - will result in error)"); + + while (true) { + try { + long n = Long.parseLong(scn.nextLine().trim()); + System.out.println(NumberName(n)); + } catch (Exception ex) { + System.out.println("ERROR: Please type a whole number between 2147483647 and -2147483648 (NOTE: any characters that are not numbers and - will result in this error)"); + } + } + } + + public static String NumberName(long num) { + StringBuilder name = new StringBuilder(num < 0 ? "negative " : ""); + var number_parts = new ArrayList<Long>(); + + if (num == 0) return "zero"; + + while (num != 0) { + number_parts.add(Math.abs(num % 1000)); + num /= 1000; + } + + for (int i = number_parts.size() - 1; i > -1; i--){ + long curr_num = number_parts.get(i); + + if ((curr_num + "").length() == 3) { + name.append(SmallNumberName((int)curr_num / 100)).append(" hundred"); + + curr_num %= 100; + if (curr_num != 0) name.append(" and "); + } + name.append(SmallNumberName((int)curr_num)); + + switch (i) { + case 1: + if (number_parts.get(1) != 0) { + name.append(" thousand"); + + if (number_parts.get(0) != 0) { + if (number_parts.get(0) / 100 == 0) name.append(" and "); + else name.append(", "); + } + } break; + + case 2: + if (number_parts.get(2) != 0) { + name.append(" million"); + + if (number_parts.get(0) != 0 || number_parts.get(1) != 0) { + if (number_parts.get(0) / 100 == 0) name.append(" and "); + else name.append(", "); + } + } break; + + case 3: + if (number_parts.get(3) != 0) { + name.append(" milliard"); + + if (number_parts.get(0) != 0 || number_parts.get(1) != 0 || number_parts.get(2) != 0) { + if (number_parts.get(0) / 100 == 0) name.append(" and "); + else name.append(", "); + } + } break; + case 4: + if (number_parts.get(4) != 0) { + name.append(" billion"); + + if (number_parts.get(0) != 0 || number_parts.get(1) != 0 || number_parts.get(2) != 0 || number_parts.get(3) != 0) { + if (number_parts.get(0) / 100 == 0) name.append(" and "); + else name.append(", "); + } + } break; + case 5: + if (number_parts.get(5) != 0) { + name.append(" billiard"); + + if (number_parts.get(0) != 0 || number_parts.get(1) != 0 || number_parts.get(2) != 0 || number_parts.get(3) != 0 || number_parts.get(4) != 0) { + if (number_parts.get(0) / 100 == 0) name.append(" and "); + else name.append(", "); + } + } break; + case 6: + if (number_parts.get(6) != 0) { + name.append(" trillion"); + + if (number_parts.get(0) != 0 || number_parts.get(1) != 0 || number_parts.get(2) != 0 || number_parts.get(3) != 0 || number_parts.get(4) != 0 || number_parts.get(5) != 0) { + if (number_parts.get(0) / 100 == 0) name.append(" and "); + else name.append(", "); + } + } break; + } + } + return name.toString(); + } + + private static String SmallNumberName(int num) { + if (num < 20) { + try { + return digits[num]; + } catch (Exception e) { + return teens[num % 10]; + } + } else if (num < 100) { + return num % 10 == 0 ? tens[(num / 10) - 1] : tens[(num / 10) - 1] + "-" + SmallNumberName(num % 10); + } + return "ERR"; + } +}
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