public void CalculatorMenu()
{
Calculation calculate = new Calculation();
int operation;
bool options = true;
decimal result = 0;
decimal firstOperand, secondOperand;
string message = "";
do
{
bool excep = false;
do
{
Console.WriteLine("Operations:");
Console.WriteLine("1. General operations (+, -, *, /).)");
Console.WriteLine("2. Percentage of the number ");
Console.WriteLine("3.'1/x'");
Console.WriteLine("4. Positive degree of number");
Console.WriteLine("5. Sqrt of number");
Console.WriteLine("6. Reminder after division");
Console.WriteLine("7. Polish reader");
Console.WriteLine("8. Exit");
} while (!int.TryParse(Console.ReadLine(), out operation) || operation < 1 || operation > 8);
switch (operation)
{
case 1:
result = GeneralOperations(ref excep, EnterSign(), EnterNumber(message), EnterNumber(message), calculate);
break;
case 2:
firstOperand = EnterNumber("What percentage? ");
secondOperand = EnterNumber("of what? ");
result = calculate.Percent(firstOperand, secondOperand);;
break;
case 3:
firstOperand = EnterNumber("Please write divider\n");
result = calculate.OneDivision(firstOperand);
if (firstOperand == 0)
{
excep = true;
}
break;
case 4:
firstOperand = EnterNumber("");
secondOperand = EnterNumber("Please write degree\n");
result = calculate.PosDegreeOfNumber(firstOperand, secondOperand);
break;
case 5:
firstOperand = EnterNumber(message);
if (firstOperand < 0)
{
excep = true;
}
result = calculate.SqrtOfNumber(firstOperand);
break;
case 6:
firstOperand = EnterNumber("");
secondOperand = EnterNumber("Please write divider\n");
result = calculate.DivisionReminder(firstOperand, secondOperand);
break;
case 7:
string expr = AskExpression();
result = calculate.PolishReader(expr);
break;
case 8:
options = false;
Environment.Exit(0);
break;
default:
break;
}
if (excep)
{
Console.WriteLine("\nTry again!");
}
else
{
Console.WriteLine("\n\nThe result is " + result);
}
Console.WriteLine("\n...press any key\n");
Console.ReadKey();
Console.WriteLine();
} while (options);
}
public decimal GeneralOperations(ref bool excep, string operation, decimal num2, decimal num1, Calculation calc)
{
decimal res = 0;
switch (operation)
{
case "/":
res = calc.Divide(num1, num2);
try
{
if (num2 == 0)
{
throw new DivideByZeroException();
}
else
{
res = num1 / num2;
}
}
catch (DivideByZeroException ex)
{
Console.WriteLine(ex.Message);
}
break;
case "*":
res = calc.Multiply(num1, num2);
break;
case "-":
res = calc.Substract(num1, num2);
break;
case "+":
res = calc.Add(num1, num2);
break;
default:
Console.WriteLine("You put wrong sign!");
res = 0;
break;
}
return(res);
}
