private void btnEquals(object sender, RoutedEventArgs e)
{
if (!Double.IsNaN(CalculatorUtil.V1) && !CalculatorUtil.Op.Equals('\0') && !txtResult.Equals(""))
{
CalculatorUtil.Valued = true;
CalculatorUtil.V2 = Double.Parse(txtResult.Text);
CalculatorUtil.V1 = CalculatorUtil.Operation(CalculatorUtil.V1, CalculatorUtil.V2, CalculatorUtil.Op);
txtResult.Text = CalculatorUtil.V1.ToString();
}
}
static void Main(string[] args)
{
Boolean completed = false;
Boolean completed2 = false;
Boolean completed3 = false;
double secondNumber = 0;
double firstNumber = 0;
while (completed == false)
{
try
{
StringBuilder sb = new StringBuilder();
//Class to convert user input
InputConverter inputConverter = new InputConverter();
//Class to perform actual calculations
CalculatorUtil calculatorEngine = new CalculatorUtil();
if (completed2 == false)
{
Console.WriteLine("Enter the first number of the equation");
firstNumber = inputConverter.ConvertInputToNumeric(Console.ReadLine());
completed2 = true;
}
if (completed3 == false)
{
Console.WriteLine("Enter the second number of the equation");
secondNumber = inputConverter.ConvertInputToNumeric(Console.ReadLine());
completed3 = true;
}
Console.WriteLine("Enter the operation sign of the equation");
string operation = Console.ReadLine();
double result = calculatorEngine.Calculate(operation, firstNumber, secondNumber);
sb.Append("The result of " + String.Format("{0:0.00}", firstNumber) + operation + String.Format("{0:0.00}", secondNumber) + " is " + String.Format("{0:0.00}", result));
//String.Format("{0:0.00}", 123.4567m)
Console.WriteLine(sb.ToString());
completed = true;
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
}
}
private void btnOp(object sender, RoutedEventArgs e)
{
//if (txtResult.Text.Equals("")) { return; }
if (Double.IsNaN(CalculatorUtil.V1) && Double.IsNaN(CalculatorUtil.V2) && !CalculatorUtil.Valued)
{
CalculatorUtil.V1 = Double.Parse(txtResult.Text.ToString());
txtResult.Text = "";
}
else if (!Double.IsNaN(CalculatorUtil.V1) && !CalculatorUtil.Valued)
{
CalculatorUtil.V2 = Double.Parse(txtResult.Text.ToString());
CalculatorUtil.Valued = true;
CalculatorUtil.V1 = CalculatorUtil.Operation(CalculatorUtil.V1, CalculatorUtil.V2, CalculatorUtil.Op);
txtResult.Text = CalculatorUtil.V1.ToString();
}
Button op = (Button)sender;
CalculatorUtil.Op = Char.Parse(op.Content.ToString());
}