50 lines
1.1 KiB
Java
50 lines
1.1 KiB
Java
package Conversions;
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/**
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* Converting Integers into Roman Numerals
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*
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*('I', 1);
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*('IV',4);
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*('V', 5);
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*('IV',9);
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*('X', 10);
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*('XL',40;
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*('L', 50);
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*('XC',90);
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*('C', 100);
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*('D', 500);
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*('M', 1000);
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*
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*/
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public class IntegerToRoman {
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private static int[] allArabianRomanNumbers = new int[]{1000, 900, 500, 400, 100, 90, 50, 40, 10, 9, 5, 4, 1};
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private static String[] allRomanNumbers = new String[]{"M", "CM", "D", "CD", "C", "XC", "L", "XL", "X", "IX", "V", "IV", "I"};
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//Value must be > 0
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public static String integerToRoman(int num) {
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if (num <= 0) {
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return "";
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}
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StringBuilder builder = new StringBuilder();
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for (int a = 0; a < allArabianRomanNumbers.length; a++) {
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int times = num / allArabianRomanNumbers[a];
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for (int b = 0; b < times; b++) {
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builder.append(allRomanNumbers[a]);
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}
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num -= times * allArabianRomanNumbers[a];
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}
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return builder.toString();
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}
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public static void main(String[] args) {
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System.out.println(IntegerToRoman.integerToRoman(2131));
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}
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}
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