public static void MathMachine(string operation) //contains the main math for the MathMachine -- receives the operation as a result of user query
{
if (string.Equals(operation, "add", StringComparison.InvariantCultureIgnoreCase)) //if user query results in "Add" or "add"
{
AdditionDoer.Do();
}
else if (string.Equals(operation, "subtract", StringComparison.InvariantCultureIgnoreCase)) //if user query results in "Subtract" or "subtract"
{
SubtractionDoer.Do();
}
else if (string.Equals(operation, "multiply", StringComparison.InvariantCultureIgnoreCase)) //if user query results in "Multiply" or "multiply"
{
MultiplicationDoer.Do();
}
else if (string.Equals(operation, "divide")) //if user query results in "Divide" or "divide"
{
DivisionDoer.Do();
}
if (!string.Equals(operation, "exit", StringComparison.InvariantCultureIgnoreCase))
{
UserOptions.NewQuery(); //call NewQuery method in UserOptions class
}
}
static void Main(string[] args)
{
UserOptions.Intro(); //call Intro method from UserOptions class
}
