static EnumOperand AskForOperand()
{
EnumOperand operand = EnumOperand.Quit;
bool cont = false;
do
{
Console.WriteLine("Adj meg egy műveletet! (=, +, -, *, /, %, !, x vagy q a kilépéshez)");
string userinput = Console.ReadLine();
cont = false;
switch (userinput)
{
case "+":
operand = EnumOperand.Add;
break;
case "-":
operand = EnumOperand.Substract;
break;
case "*":
operand = EnumOperand.Multiply;
break;
case "/":
operand = EnumOperand.Division;
break;
case "%":
operand = EnumOperand.Modulo;
break;
case "!":
operand = EnumOperand.Factorial;
break;
case "=":
operand = EnumOperand.Define;
break;
case "x":
operand = EnumOperand.Power;
break;
case "q":
operand = EnumOperand.Quit;
break;
default:
cont = true;
break;
}
} while (cont);
return(operand);
}
static EnumOperand AskForOperand()
{
EnumOperand operand = EnumOperand.Quit;
bool cont = false;
do
{
Console.WriteLine("choose ur option! (+, -, *, % , / or q a kilépéshez)");
string userinput = Console.ReadLine();
cont = false;
switch (userinput)
{
case "+":
operand = EnumOperand.Add;
break;
case "-":
operand = EnumOperand.Substract;
break;
case "*":
operand = EnumOperand.Multiple;
break;
case "/":
operand = EnumOperand.Division;
break;
case "q":
operand = EnumOperand.Quit;
break;
case "%":
operand = EnumOperand.Maradek;
break;
case "cos":
operand = EnumOperand.COS;
break;
case "cosh":
operand = EnumOperand.COSH;
break;
default:
cont = true;
break;
}
} while (cont);
return(operand);
}
static void Main(string[] args)
{
bool GoOn = true;
double lastresult = 0;
Console.WriteLine("Kezdő érték = " + lastresult.ToString());
do
{
EnumOperand operand = AskForOperand();
switch (operand)
{
case EnumOperand.Quit:
GoOn = false;
break;
default:
lastresult = CalculateValue(operand, lastresult);
Console.WriteLine("Az eredmény = " + lastresult.ToString());
break;
}
} while (GoOn);
}
static double CalculateValue(EnumOperand operand, double argument)
{
bool wrongnumber = true;
double result = 0;
do
{
wrongnumber = false;
Console.Write("Adj meg egy számot!");
Console.WriteLine("");
string userinput = Console.ReadLine();
try
{
double number = double.Parse(userinput);
switch (operand)
{
case EnumOperand.Add:
result = argument + number;
break;
case EnumOperand.Substract:
result = argument - number;
break;
case EnumOperand.Multiply:
result = argument * number;
break;
case EnumOperand.Division:
if (number == 0)
{
wrongnumber = true;
Console.WriteLine("Nullával nem lehet osztani!");
continue;
}
result = argument / number;
break;
case EnumOperand.Modulo:
result = argument % number;
break;
case EnumOperand.Define:
result = number;
break;
case EnumOperand.Factorial:
if ((number % 1) != 0)
{
Console.WriteLine("Tört számmal nem számolok faktoriálist!");
break;
}
int i;
result = 1;
for (i = 2; i <= number; i++)
{
result *= i;
}
break;
case EnumOperand.Power:
if ((number % 1) != 0 || number <= 1)
{
Console.WriteLine("Egyellőre csak pozitív, egész számmal tudok hatványozni!");
break;
}
int j;
result = argument;
for (j = 1; j < number; j++)
{
result *= argument;
}
break;
default:
break;
}
}
catch (Exception)
{
wrongnumber = true;
}
} while (wrongnumber);
return(result);
}
static double CalculateValue(EnumOperand operand, double argument)
{
bool wrongnumber = true;
double result = 0;
do
{
wrongnumber = false;
Console.Write("write a number!");
Console.WriteLine("");
string userinput = Console.ReadLine();
try
{
double number = double.Parse(userinput);
switch (operand)
{
case EnumOperand.Add:
result = argument + number;
break;
case EnumOperand.Substract:
result = argument - number;
break;
case EnumOperand.Multiple:
result = argument * number;
break;
case EnumOperand.Maradek:
result = argument % number;
break;
case EnumOperand.Division:
if (number == 0)
{
wrongnumber = true;
Console.WriteLine("Nullával nem lehet osztani!");
continue;
}
result = argument / number;
break;
case EnumOperand.COS:
result = Math.Cos(argument);
break;
case EnumOperand.COS:
result = Math.Cosh(number);
break;
default:
break;
}
}
catch (Exception)
{
wrongnumber = true;
}
} while (wrongnumber);
return(result);
}