Demonstrates stacking catch blocks to provide alternate code for more than one exception type

/*
C# Programming Tips & Techniques
by Charles Wright, Kris Jamsa

Publisher: Osborne/McGraw-Hill (December 28, 2001)
ISBN: 0072193794
*/

// Except.cs -- Demonstrates stacking catch blocks to provide alternate code for
// more than one exception type.
//
// Compile this program with the following command line:
//    C:>csc Except.cs
//
namespace nsExcept
{
    using System;
    using System.IO;
    
    public class Except
    {
        static public void Main (string [] args)
        {
            if (args.Length == 0)
            {
                Console.WriteLine ("Please enter a file name");
                return;
            }
            try
            {
                ReadFile (args[0]);
            }
            catch (ArgumentException)
            {
                Console.WriteLine ("The file name " + args [0] +
                          " is empty or contains an invalid character");
            }
            catch (FileNotFoundException)
            {
                Console.WriteLine ("The file name " + args [0] +
                                   " cannot be found");
            }
            catch (DirectoryNotFoundException)
            {
                Console.WriteLine ("The path for " + args [0] +
                                   " is invalid");
            }
            catch (Exception e)
            {
                Console.WriteLine (e);
            }
        }
        static public void ReadFile (string FileName)
        {
            FileStream strm = new FileStream (FileName, FileMode.Open,
                                                        FileAccess.Read);
            StreamReader reader = new StreamReader (strm);
            string str = reader.ReadToEnd ();
            Console.WriteLine (str);
        }
    }
}

Related examples in the same category

1.	Catch Error
2.	illustrates an unhandled exception
3.	illustrates how to handle a specific exception
4.	illustrates multiple catch blocks
5.	illustrates a nested try/catch block
6.	illustrates exception propagation with methods
7.	Catch Divide By Zero Exception
8.	Catches an exception that was thrown in a component
9.	Throw a format exception purposely to demonstrate catching a FormatException
10.	Demonstrates using if statements to sort out an IOException
11.	Several catch branches
12.	Demonstrate exception handling
13.	An exception can be generated by one method and caught by another
14.	Exception Type Mismatch
15.	Handle error gracefully and continue
16.	Use multiple catch statements
17.	Use the 'catch all' catch statement
18.	Use a nested try block
19.	Catch different exceptions
20.	Passing Exceptions on to the Caller: Caller Confuse
21.	Passing Exceptions on to the Caller: Caller Inform
22.	Exception Handling:Trying and Catching

Demonstrates stacking catch blocks to provide alternate code for more than one exception type : Exception Try Catch « Language Basics « C# / C Sharp

Related examples in the same category