static void Main(string[] args)
{
bool endApp = false;
Console.WriteLine("Fraction calculator in C#\r");
Console.WriteLine("-------------------------\n");
while (!endApp)
{
//First fraction enter and check
Console.WriteLine("Enter first fraction:");
string n1 = Console.ReadLine();
int cleanN1;
while (!int.TryParse(n1, out cleanN1))
{
Console.Write("This is not valid input. Please enter an integer value: ");
n1 = Console.ReadLine();
}
string d1 = Console.ReadLine();
int cleanD1;
while (!int.TryParse(d1, out cleanD1) || cleanD1 == 0)
{
Console.Write("This is not valid input. Please enter an integer not zero value: ");
d1 = Console.ReadLine();
}
//Second fraction enter and check
Console.WriteLine("Enter second fraction:");
string n2 = Console.ReadLine();
int cleanN2;
while (!int.TryParse(n2, out cleanN2))
{
Console.Write("This is not valid input. Please enter an integer value: ");
n2 = Console.ReadLine();
}
string d2 = Console.ReadLine();
int cleanD2;
while (!int.TryParse(d2, out cleanD2) || cleanD2 == 0)
{
Console.Write("This is not valid input. Please enter an integer not zero value: ");
d2 = Console.ReadLine();
}
//Create objects of Fraction class
Fraction a = new Fraction(cleanN1, cleanD1);
Fraction b = new Fraction(cleanN2, cleanD2);
Console.WriteLine("Choose an operator from the following list:");
Console.WriteLine("\ta - Add");
Console.WriteLine("\ts - Subtract");
Console.WriteLine("\tm - Multiply");
Console.WriteLine("\td - Divide");
Console.Write("Your option? ");
string op = Console.ReadLine();
string result = "";
Fraction c;
switch (op)
{
case "a":
c = Fraction.Add(a, b);
result = a.Output() + "+" + b.Output() + "=" + c.Output();
break;
case "s":
c = Fraction.Subtract(a, b);
result = a.Output() + "+" + b.Output() + "=" + c.Output();
break;
case "m":
c = Fraction.Multiply(a, b);
result = a.Output() + "+" + b.Output() + "=" + c.Output();
break;
case "d":
c = Fraction.Divide(a, b);
result = a.Output() + "+" + b.Output() + "=" + c.Output();
break;
default:
break;
}
if (string.IsNullOrEmpty(result))
{
Console.WriteLine("This operation will result in a mathematical error.\n");
}
else
{
Console.WriteLine("Result: " + result);
}
Console.WriteLine("------------------------\n");
Console.Write("Press 'n' and Enter to close the app, or press any other key and Enter to continue: ");
if (Console.ReadLine() == "n")
{
endApp = true;
}
Console.WriteLine("\n");
}
return;
}
