//example 4
private static void autumnMagic(Autumn autumn)
{
if (autumn == null)
{
throw new System.ArgumentException("Parameter cannot be null", "autumn");
}
}
static void Main(string[] args)
{
// example 1
Words = new List <string>();
Words.Add("Bread");
Words.Add("Coffee");
Words.Add("Dark Chocolate");
//example 2
crazyMathProblem();
//example 3
try
{
crazyMathProblem();
}
catch (Exception ex)
{
Console.WriteLine("Error message is: " + ex.Message);
Console.WriteLine("Better luck next time!");
}
finally
{
Console.WriteLine("The block finally sends you Hi!");
}
//xample 4: throw
try
{
Autumn autumn2020 = null;
autumnMagic(autumn2020);
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
// example 5: Most specific/Least specific
try
{
Autumn autumn2021 = null;
autumnMagic(autumn2021);
}
catch (ArgumentException ex)
{
Console.WriteLine("ArgumentException: " + ex.Message);
}
catch (InvalidOperationException ex)
{
Console.WriteLine("InvalidOperationException: " + ex.Message);
}
catch (Exception ex)
{
Console.WriteLine("Exception: " + ex.Message);
}
//example 6: custom exception
int num1 = readNum("Type your first number :");
int num2 = readNum("Type your second number :");
Operation operation = readOperation();
Calculator calc = new Calculator();
try
{
if (num1 == 2020)
{
//throw new CalculationException("Just for testing a custom exception!");
throw new DivideByZeroException("JLK:LKHN:LKHN:LKNH!!!!!!!");
}
int result = calc.Calculate(operation, num1, num2);
Console.WriteLine();
Console.WriteLine("Result of " + num1 + " " + operation + " " + num2 + " = " + result + ".");
}
catch (CalculationException ex)
{
Console.WriteLine("CalculationException's error message is: " + ex.Message);
}
catch (Exception ex)
{
Console.WriteLine("Error message is: " + ex.Message);
Console.WriteLine("Better luck next time!");
return;
}
//catch (Exception)
//{
// Console.WriteLine("DEFAULT");
//}
finally
{
Console.WriteLine("The block finally sends you hi!");
}
Console.ReadLine();
}