static void Main() // 100/100 - Пример за DependencyInversion с ctor Injection!!!
{
PrimitiveCalculator calculator = new PrimitiveCalculator(new AdditionStrategy()); // default strategy!
string input;
while ((input = Console.ReadLine()) != "End")
{
string[] tokens = input.Split();
string command = tokens[0];
if (command == "mode")
{
char @operator = tokens[1][0];
ICalculationStrategy strategy = null;
switch (@operator)
{
case '+':
strategy = new AdditionStrategy();
break;
case '-':
strategy = new SubtractionStrategy();
break;
case '*':
strategy = new MultyplicationStrategy();
break;
case '/':
strategy = new DivisionStrategy();
break;
}
if (strategy == null)
{
throw new ArgumentException("Inavalid mode!");
}
calculator.ChangeStrategy(strategy);
}
else
{
int firstOperand = int.Parse(tokens[0]);
int secondOperand = int.Parse(tokens[1]);
int result = calculator.PerformCalculation(firstOperand, secondOperand);
Console.WriteLine(result);
}
}
}
static void Main(string[] args)
{
PrimitiveCalculator calculator = new PrimitiveCalculator(new AdditionStrategy());
string input;
while ((input = Console.ReadLine()) != "End")
{
string[] tokens = input.Split();
string firstArg = tokens[0];
if (firstArg == "mode")
{
char operand = tokens[1][0];
ICalculationStrategy strategy = null;
switch (operand)
{
case '+':
strategy = new AdditionStrategy();
break;
case '-':
strategy = new SubtractionStrategy();
break;
case '*':
strategy = new MultyplicationStrategy();
break;
case '/':
strategy = new DivideStrategy();
break;
}
if (strategy == null)
{
throw new InvalidOperationException("Invalid Mode!");
}
calculator.ChangeStrategy(strategy);
}
else
{
int first = int.Parse(firstArg);
int second = int.Parse(tokens[1]);
int result = calculator.PerformCalculation(first, second);
Console.WriteLine(result);
}
}
}
public static void Main()
{
var input = Console.ReadLine();
var calculator = new PrimitiveCalculator();
while (input != "End")
{
string[] inputArgs = input.Split();
if (inputArgs[0] == "mode")
{
switch (inputArgs[1][0])
{
case '/':
var devision = new DevisionStrategy();
calculator.ChangeStrategy(devision);
break;
case '*':
var multyplication = new MultyplicationStrategy();
calculator.ChangeStrategy(multyplication);
break;
case '-':
var substraction = new SubstractionStrategy();
calculator.ChangeStrategy(substraction);
break;
case '+':
var addition = new AdditionStrategy();
calculator.ChangeStrategy(addition);
break;
}
}
else
{
int firstOperand = int.Parse(inputArgs[0]);
int secondOperand = int.Parse(inputArgs[1]);
int result = calculator.PerformCalculation(firstOperand, secondOperand);
Console.WriteLine(result);
}
input = Console.ReadLine();
}
}