public void CalculatorTaskFile()
{
this.writer.Write("----------Calculator. Task 2: Read/write data from/to file");
logger.Info("Calculator. Task 2: Read/write data from/to file.\n");
try
{
Calculator expression = new Calculator(new FileInputOutput(configuration["inputFile"], configuration["outputFile"]));
this.writer.Write("The first number:");
double firstNumber = expression.Read(0);
this.writer.Write(firstNumber);
this.writer.Write("The second number:");
double secondNumber = expression.Read(1);
this.writer.Write(secondNumber);
this.writer.Write("The operation to perform:");
this.writer.Write("\t1 - Addition, 2 - Subtraction, 3 - Multiplication, 4 - Division.");
double option = expression.Read(2);
this.writer.Write(option);
double calculationResult = option switch
{
1 => Calculator.Calculate(firstNumber, secondNumber, Calculator.Add),
2 => Calculator.Calculate(firstNumber, secondNumber, Calculator.Subtract),
3 => Calculator.Calculate(firstNumber, secondNumber, Calculator.Multiply),
4 => Calculator.Calculate(firstNumber, secondNumber, Calculator.Divide),
_ => throw new ArgumentException($"invalid value : {option}")
};
this.writer.Write($"The result of calculation : {calculationResult}\n");
expression.Write($"The result of calculation : {calculationResult}");
}
catch (FileNotFoundException fileEx)
{
logger.Info("File not found: " + fileEx.Message);
}
catch (IOException e)
{
logger.Error(e.Message);
}
catch (FormatException e)
{
logger.Error(e.Message);
}
catch (DivideByZeroException e)
{
logger.Error(e.Message);
}
}
public void CalculatorTaskConsole()
{
this.writer.Write("----------Calculator. Task 1: Read/write data from/to console");
logger.Info("Calculator. Task 1: Read/write data from/to console.\n");
try
{
Calculator expression = new Calculator(new ConsoleInputOutput());
this.writer.Write("Enter first number:");
double firstNumber = expression.Read();
this.writer.Write("Enter second number:");
double secondNumber = expression.Read();
this.writer.Write("Choose an operation to perform:");
this.writer.Write("\t1 - Addition, 2 - Subtraction, 3 - Multiplication, 4 - Division.");
double option = expression.Read();
double calculationResult = option switch
{
1 => Calculator.Calculate(firstNumber, secondNumber, Calculator.Add),
2 => Calculator.Calculate(firstNumber, secondNumber, Calculator.Subtract),
3 => Calculator.Calculate(firstNumber, secondNumber, Calculator.Multiply),
4 => Calculator.Calculate(firstNumber, secondNumber, Calculator.Divide),
_ => throw new ArgumentException($"invalid value : {option}")
};
this.writer.Write($"The result of calculation : {calculationResult}\n\n");
}
catch (FormatException e)
{
logger.Error(e.Message);
}
catch (DivideByZeroException e)
{
logger.Error(e.Message);
}
}
