This print for content only-size & color not accurate 7" X 9-1/4" / casebound / malloy

■

U N D E R S TA N D I N G   S T R U C T U R E D   E X C E P T I O N   H A N D L I N G

240

8849CH07.qxd  10/1/07  10:38 AM  Page 240

---

Figure 7-6.

Identifying the exceptions thrown from a given method

For those coming to .NET from a Java background, understand that type members are not pro-

totyped with the set of exceptions it may throw (in other words, .NET does not support checked

exceptions). For better or for worse, you are

not required to handle each and every exception

thrown from a given member. In many cases, you can handle all possible errors thrown from a set

scope by catching a single System.Exception:

static void Main(string[] args)

{

try

{

File.Open("IDontExist.txt", FileMode.Open);

}

catch(Exception ex)

{

Console.WriteLine(ex.Message);

}

}

However, if you do wish to handle specific exceptions uniquely, just make use of multiple catch

blocks as shown throughout this chapter.