Order of execution of Catch statements

• System.Exception is the base class for Exceptions
• System.Exception should be the last catch block.
• Catch block for all the child exceptions should be declared before System.Exception. Compiler throws exception if the order is not following.

•  Sample (WRONG)

            try
            {
                int c= 10/0;
            }
            catch (Exception ex)
            {
                Console.WriteLine("Exception block:" + ex.Message);
            }
            catch (DivideByZeroException dex)
            {
                Console.WriteLine("DivideByZeroException block:" + dex.Message);
            }

COMPILE ERROR: A previous catch clause already catches all exceptions of this or of a super type ('System.Exception')

• Sample (CORRECT)

             try
            {
                int c= 10/0;
            }
            catch (DivideByZeroException dex)
            {
                Console.WriteLine("DivideByZeroException block:" + dex.Message);
            }
            catch (Exception ex)
            {
                Console.WriteLine("Exception block:" + ex.Message);
            }

Eg : Another Sample