static void Main()
{
RatNumber num1 = new RatNumber(1, 2);
RatNumber num2 = new RatNumber(2, 4);
RatNumber nums;
while (true)
{
Clear();
Menu();
switch (ReadKey(true).Key)
{
case ConsoleKey.D0: Clear(); return;
case ConsoleKey.D1: Clear(); Choose(ref num1, ref num2)?.WriteNumDen(); WriteLine("Press any key..."); ReadKey(); break;
case ConsoleKey.D2:
Clear();
if ((nums = Choose(ref num1, ref num2)) == num1 && num1 != null)
{
RatNumber.WriteNum(ref num1);
}
else if (nums == num2 && num2 != null)
{
RatNumber.WriteNum(ref num2);
}
WriteLine("Press any key..."); ReadKey(); break;
case ConsoleKey.D3: Clear(); Choose(ref num1, ref num2)?.NumOut(); WriteLine("Press any key..."); ReadKey(); break;
case ConsoleKey.D4:
Clear(); WriteLine("Difference is {0:f}", IComparison.Comparison(num1, num2));
WriteLine("Press any key..."); ReadKey(); break;
case ConsoleKey.D5:
Clear(); WriteLine("Classes equals {0}", IComparison.Equals(num1, num2));
WriteLine("Press any key..."); ReadKey(); break;
case ConsoleKey.D6:
Clear();
WriteLine(" 1 - Sum\n 2 - Difference\n 3 - Multiply\n 4 - Divide\n 5 - Compare on >\n" +
" 6 - Compare on <\n 7 - Compare on >=\n 8 - Compare on <=\n");
switch (ReadKey(true).Key)
{
case ConsoleKey.D1: Change(ref num1, ref num2, num1 + num2); break;
case ConsoleKey.D2: Change(ref num1, ref num2, num1 - num2); break;
case ConsoleKey.D3: Change(ref num1, ref num2, num1 * num2); break;
case ConsoleKey.D4: Change(ref num1, ref num2, num1 / num2); break;
case ConsoleKey.D5: WriteLine("! element > secont element, {0}", num1 > num2); break;
case ConsoleKey.D6: WriteLine("! element > secont element, {0}", num1 < num2); break;
case ConsoleKey.D7: WriteLine("! element > secont element, {0}", num1 >= num2); break;
case ConsoleKey.D8: WriteLine("! element > secont element, {0}", num1 <= num2); break;
}
WriteLine("Press any key...");
ReadKey();
break;
}
}
}