static void Main(string[] args)
{
Console.BackgroundColor = ConsoleColor.Black;
Console.Clear();
Console.ForegroundColor = ConsoleColor.White;
Console.WriteLine("Welcome to the \"simple\" calculator! Type \"exit\" or \"quit\" to close at any time.");
int counter = 1;
bool userDoingMath = true;
Constant constants = new Constant();
MathProblemStack mathProblems = new MathProblemStack();
while (userDoingMath)
{
Console.ForegroundColor = ConsoleColor.Green;
Console.Write("[" + counter + "] ");
string userMathProblem = Console.ReadLine();
if (userMathProblem.ToLower() == "quit" || userMathProblem.ToLower() == "exit")
{
userDoingMath = false;
{
for (int a = 5; a >= 0; a--)
{
Console.ForegroundColor = ConsoleColor.Red;
Console.Write("\rBye! exiting in {0} seconds", a);
Thread.Sleep(1000);
}
}
}
else if (userMathProblem == "last")
{
userMathProblem = mathProblems.getLastMathProblem();
}
else if (userMathProblem == "lastq")
{
Console.WriteLine(" = " + mathProblems.getLastMathProblem());
}
else if (userMathProblem.Contains("="))
{
Console.WriteLine(constants.verifyConstant(userMathProblem));
}
else if (userMathProblem.Any(x => char.IsLetter(x)) && userMathProblem.Length == 1)
{
Console.WriteLine(constants.getConstant(userMathProblem));
}
else if (userMathProblem.Any(x => char.IsLetter(x)) && !userMathProblem.Contains("=") && userMathProblem.Length > 1)
{
userMathProblem = constants.updateMathProblemWithConstants(userMathProblem);
}
Expression userExpression = new Expression();
userExpression.verifyUserMathProblem(userMathProblem);
int mathFactorA = userExpression.mathFactorA;
int mathFactorB = userExpression.mathFactorB;
string operationUsed = userExpression.mathOperator;
if (mathFactorA != 0 && operationUsed != null && mathFactorB != 0)
{
mathProblems.addNewMathProblem((mathFactorA + operationUsed + mathFactorB).ToString());
}
switch (operationUsed)
{
case "+":
Addition addNumbers = new Addition();
Console.WriteLine(" = " + addNumbers.AddNumbers(mathFactorA, mathFactorB));
break;
case "-":
Subtraction subtractNumbers = new Subtraction();
Console.WriteLine(" = " + subtractNumbers.SubtractNumbers(mathFactorA, mathFactorB));
break;
case "*":
Multiplication multiplyNumbers = new Multiplication();
Console.WriteLine(" = " + multiplyNumbers.MultiplyNumbers(mathFactorA, mathFactorB));
break;
case "/":
Division divideNumbers = new Division();
Console.WriteLine(" = " + divideNumbers.DivideNumbers(mathFactorA, mathFactorB));
break;
case "%":
Modulus modulusNumbers = new Modulus();
Console.WriteLine(" = " + modulusNumbers.ModulusNumbers(mathFactorA, mathFactorB));
break;
default:
break;
}
Console.WriteLine(Environment.NewLine);
counter++;
}
}