static void Main(string[] args)
{
bool operation = true;
while (operation)
{
Console.Clear();
Console.WriteLine("Calculator App By: 3 mands gruppen.");
Console.WriteLine("Choose an action. Follwed by Enter.\n");
Console.WriteLine("Add : 1 \n"
+ "Subtract : 2\n"
+ "Multiply : 3\n"
+ "Divide : 4\n"
+ "Power : 5\n"
+ "Factorial : 6 \n"
+ "Exit program : 7");
string act = Console.ReadLine();
Console.Clear();
int value1 = 0;
int value2 = 0;
switch (act)
{
case "1":
try
{
Console.WriteLine("Enter your first value: followed by Enter.");
value1 = Convert.ToInt32(Console.ReadLine());
Console.WriteLine("Enter your second value: followed by Enter.");
value2 = Convert.ToInt32(Console.ReadLine());
Console.WriteLine("The solution is :" + Calculator.Add(value1, value2));
}
catch
{
Console.WriteLine("Not a valid value!");
Console.ReadKey();
}
break;
case "2":
try
{
Console.WriteLine("Enter your first value: followed by Enter.");
value1 = Convert.ToInt32(Console.ReadLine());
Console.WriteLine("Enter your second value: followed by Enter.");
value2 = Convert.ToInt32(Console.ReadLine());
Console.WriteLine("The solution is :" + Calculator.Subtract(value1, value2));
Console.ReadKey();
}
catch
{
Console.WriteLine("Not a valid value!");
Console.ReadKey();
}
break;
case "3":
try
{
Console.WriteLine("Enter your first value: followed by Enter.");
value1 = Convert.ToInt32(Console.ReadLine());
Console.WriteLine("Enter your second value: followed by Enter.");
value2 = Convert.ToInt32(Console.ReadLine());
Console.WriteLine("The solution is :" + Calculator.Multy(value1, value2));
Console.ReadKey();
}
catch
{
Console.WriteLine("Not a valid value!");
Console.ReadKey();
}
break;
case "4":
try
{
Console.WriteLine("Enter your first value: followed by Enter.");
value1 = Convert.ToInt32(Console.ReadLine());
Console.WriteLine("Enter your second value: followed by Enter.");
value2 = Convert.ToInt32(Console.ReadLine());
Console.WriteLine("The solution is :" + Calculator.Div(value1, value2));
Console.ReadKey();
}
catch
{
Console.WriteLine("Not a valid value!");
Console.ReadKey();
}
break;
case "5":
try
{
Console.WriteLine("Enter your first value: followed by Enter.");
value1 = Convert.ToInt32(Console.ReadLine());
Console.WriteLine("Enter your second value: followed by Enter.");
value2 = Convert.ToInt32(Console.ReadLine());
Console.WriteLine("The solution is :" + Calculator.Power(value1, value2));
Console.ReadKey();
}
catch
{
Console.WriteLine("Not a valid value!");
Console.ReadKey();
}
break;
case "6":
try
{
Console.WriteLine("Enter your value: followed by Enter.");
value1 = Convert.ToInt32(Console.ReadLine());
Console.WriteLine("The solution is :" + Calculator.Fac(value1));
Console.ReadKey();
}
catch
{
Console.WriteLine("Not a valid value!");
Console.ReadKey();
}
break;
case "7":
try
{
Console.WriteLine("End of operation");
operation = false;
Console.ReadKey();
}
catch
{
}
break;
default:
Console.WriteLine("You have to enter an invalid option!");
Console.ReadKey();
break;
}
}
}
