static void Main(string[] args)
{
//there's a cleaner way to write this code...using the 'using' keyword.
//exceptions should be from most specific to most generic..
StreamReader stream = null; //have to initialize it to null or you can't use it in the try block...
try
{
Calculator calc = new Calculator();
calc.Divide(5, 0);
stream = new StreamReader(@"c:\file.zip");
var content = stream.ReadToEnd();
}
catch(DivideByZeroException ex)
{
Console.WriteLine(ex.Message);
}
catch (ArithmeticException ex)
{
Console.WriteLine(ex.Message);
}
catch (Exception ex)
{
Console.WriteLine("Sorry an error occured");
// throw; //throw can send the error to the caller of the code.
}
finally //finally will run.
{
//unmanaged resources need to implement IDisposable interface.
Console.WriteLine("The bacon flows from within");
if (stream != null)
stream.Dispose();
}
}
static void Main(string[] args)
{
try
{
var api = new YoutubeApi();
var video = api.GetVideo("Mosh");
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
try
{
var calculator = new Calculator();
var result = calculator.Divide(5, 0);
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
}
static void Main(string[] args)
{
#region One
try
{
var calculator = new Calculator();
var result = calculator.Divide(5, 0);
}
catch (DivideByZeroException ex)
{
Console.WriteLine("You cannot divide by 0.");
}
catch (Exception ex)
{
Console.WriteLine("Sorry, an unexpected error occured");
}
#endregion
Console.WriteLine();
Console.WriteLine("*******************************");
Console.WriteLine("*******************************");
#region Two
StreamReader streamReader = null;
try
{
streamReader = new StreamReader(@"c:\file.zip");
var content = streamReader.ReadToEnd();
}
catch (Exception ex)
{
Console.WriteLine("Sorry, an unexpected error occured");
}
finally
{
if (streamReader != null)
{
streamReader.Dispose();
}
}
#endregion
Console.WriteLine();
Console.WriteLine("*******************************");
Console.WriteLine("*******************************");
#region Three
try
{
using (var streamRead = new StreamReader(@"c:\file.zip"))
{
var content = streamRead.ReadToEnd();
}
}
catch (Exception ex)
{
Console.WriteLine("Oops");
}
#endregion
Console.WriteLine();
Console.WriteLine("*******************************");
Console.WriteLine("*******************************");
#region Four
try
{
var api = new YoutubeApi();
var videos = api.GetVideos("");
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
#endregion
Console.ReadLine();
}
