static void Main(string[] args)
{
stack = new Stack();
adder = new Operators.Adder();
subtractor = new Operators.Subtructor();
multiplier = new Operators.Multiplier();
divider = new Operators.Divider();
resultPresenter = new Operators.ResultPresenter();
CalculatorApp calculator = new CalculatorApp(stack, adder, subtractor, divider, multiplier, resultPresenter);
}
public void Close()
{
if (app == null)
{
return;
}
app.Close();
app.Dispose();
app = null;
instance = null;
}
static void Main(string[] args)
{
var calc = new CalculatorApp();
Console.WriteLine(calc.Add(1, 5));
try
{
Console.WriteLine(calc.Div(1, 9));
}
catch (DivideByZeroException e)
{
Console.WriteLine(e.Message);
}
Console.ReadLine();
}
static void Main(string[] args)
{
CalculatorApp c = new CalculatorApp();
do
{
Console.WriteLine("Please enter an expression: ");
string expression = Console.ReadLine();
try
{
int result = c.Compute(expression);
Console.WriteLine("The result is: {0}", result);
}
catch
{
Console.WriteLine("Error occured!");
}
Console.WriteLine("Press q to exit or any other key to continue");
}while (Console.ReadKey().KeyChar != 'q');
}
static void Main(string[] args)
{
/// Example to get you started,
/// Remove the following code below after you run the app to ensure it works.
bool control = true;
while (control)
{
Console.WriteLine();
//Display title as the Calculator App.
Console.WriteLine("Calculator App");
Console.WriteLine();
CalculatorApp calculator = new CalculatorApp();
//Declare 3 variables and set to empty.
//*Hint* numInput1= ; numInput2= ; result = ;
//String numbInput1 = "";
//Ask the user to type the first number
Console.WriteLine("Type a space-separated operation: number operator number (i.e., 1 + 1): ");
string[] input = Console.ReadLine().Split(" ");
int a = Convert.ToInt32(input[0]);
char op = Convert.ToChar(input[1]);
int b = Convert.ToInt32(input[2]);
int result = 0;
try
{
switch (op)
{
case '+':
result = calculator.Add(a, b);
break;
case '-':
result = calculator.Sub(a, b);
break;
case '*':
result = calculator.Mult(a, b);
break;
case '/':
result = calculator.Div(a, b);
break;
default:
throw new Exception("Invalid Operator");
}
}
catch (Exception)
{
Console.WriteLine("Enter valid operator: ");
op = Convert.ToChar(Console.ReadLine());
}
finally
{
switch (op)
{
case '+':
result = calculator.Add(a, b);
break;
case '-':
result = calculator.Sub(a, b);
break;
case '*':
result = calculator.Mult(a, b);
break;
case '/':
result = calculator.Div(a, b);
break;
default:
throw new Exception("Invalid Operator");
}
}
Console.WriteLine("{0} {1} {2} = {3}", a, op, b, result);
Console.WriteLine();
Console.WriteLine("Do you want to continue? Enter 'true' or 'false'");
control = Convert.ToBoolean(Console.ReadLine());
}
//Ask the user to type the second number.
//Ask the user to the user to choose an operator.
//If a non-numeric is entered add try/catch block to handle the exception.
//Use a switch statement to do the calculations
//Wait for the user to respond before closing.
}
