C# 0 The Complete Reference

FileNotFoundException

 is thrown. If 

filename

 is null, then 

an

ArgumentNullException

 is thrown. If 

filename

 is an empty string, 

ArgumentException

 is 

thrown. 

IOException

 and 

DirectoryNotFoundException

 are also possible.

Redirecting the Standard Streams

As mentioned earlier, the standard streams, such as 

Console.In

, can be redirected. By far, the 

most common redirection is to a file. When a standard stream is redirected, input and/or 

output is automatically directed to the new stream, bypassing the default devices. By 

redirecting the standard streams, your program can read commands from a disk file, create 

log files, or even read input from a network connection.

Redirection of the standard streams can be accomplished in two ways. First, when you 

execute a program on the command line, you can use the