### Question:
RomanNumeral { public String toString() { String roman = ""; int N = num; for (int i = 0; i < numbers.length; i++) { while (N >= numbers[i]) { roman += letters[i]; N -= numbers[i]; } } return roman; } RomanNumeral(int arabic);  RomanNumeral(String roman); String toString(); int toInt(); static String integerToRomanNumeral( Integer i );  }### Answer:
@Test public void testToString() { System.out.println("toString"); RomanNumeral instance = new RomanNumeral(123); String expResult = "CXXIII"; String result = instance.toString(); assertEquals(expResult, result); }