private void OperationButton_Click(object sender, RoutedEventArgs e)
{
// Storing the previous number to be able to start the computation now.
if (double.TryParse(ResultLabel.Content.ToString(), out _lastNumber))
{
ResultLabel.Content = "0"; // Clearing it back to receive the next button.
}
if (sender == MultiplyButton)
{
_selectedOperation = CalculatorOperation.Multiplication;
}
if (sender == DivideButton)
{
_selectedOperation = CalculatorOperation.Division;
}
if (sender == AddButton)
{
_selectedOperation = CalculatorOperation.Addition;
}
if (sender == SubtractButton)
{
_selectedOperation = CalculatorOperation.Subtraction;
}
}
public Calculator(CalculatorParser parser, CalculatorConverter converter,
CalculatorOperation calculatorOperation)
{
_parser = parser;
_converter = converter;
_calculatorOperation = calculatorOperation;
}
public void AddOperation(CalculatorOperation op)
{
if (this.op.HasValue)
{
Compute();
}
this.op = op;
if (input.HasValue)
{
result = input;
this.Clear();
}
}
private static CalculatorOperation parseCalculatorOperation(string userInput)
{
string[] parts = userInput.Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
if (parts.Length == 0)
throw new ArgumentException("Cannot parse user input - input string malformed!");
int[] operands = new int[parts.Length - 1];
for (int i = 1; i < parts.Length; i++)
operands[i - 1] = Int16.Parse(parts[i]);
var operation = new CalculatorOperation(parts[0], operands);
return operation;
}
static void Main(string[] args)
{
Console.WriteLine("Simple Calculator");
Console.WriteLine("This application allows you to perform basic mathematics calculation\n 1. Addittion (+)\n 2. Subraction(-)\n 3. Multiplcation(*)\n Division()\n Exponential(**)\n 4. Modulus(%)");
Console.Write("Please enter the first number: ");
int num1 = Convert.ToInt32(Console.ReadLine());
Console.Write("Please select an operator: ");
String ops = Console.ReadLine();
Console.Write("Please enter the second number: ");
int num2 = Convert.ToInt32(Console.ReadLine());
int result;
if (ops.Equals("+"))
{
result = CalculatorOperation.add(num1, num2);
Console.WriteLine($"{num1} + {num2} = {result}");
}
else if (ops.Equals("-"))
{
result = CalculatorOperation.subract(num1, num2);
Console.WriteLine($"{num1} - {num2} = {result}");
}
else if (ops.Equals("/"))
{
result = CalculatorOperation.divide(num1, num2);
Console.WriteLine($"{num1} / {num2} = {result}");
}
else if (ops.Equals("*"))
{
result = CalculatorOperation.multiply(num1, num2);
Console.WriteLine($"{num1} * {num2} = {result}");
}
else if (ops.Equals("%"))
{
result = CalculatorOperation.modu(num1, num2);
Console.WriteLine($"{num1} % {num2} = {result}");
}
else
{
Console.WriteLine($"Invalid operator.");
}
Console.Read();
}
