private static void Exercise5() { ConsoleAppPrintUtil.PrintTextWithLineSeparator("Ejercicio 4:"); var questions = new string[] { "Introduzca el primer número: ", "Introduzca el segundo número: " }; var answer1 = ConsoleAppPrintUtil.PrintQuestionWithStringAnswer(questions[0]); var answer2 = ConsoleAppPrintUtil.PrintQuestionWithStringAnswer(questions[1]); var number1 = answer1 == string.Empty ? null : answer1; var number2 = answer2 == string.Empty ? null : answer2; ConsoleAppPrintUtil.PrintDivision(number1, number2); }