In a C# program only one catch block will be executed.
When an exception is thrown, the runtime checks each catch block in order, starting from the top, to see if the exception matches the type of the catch block. Once the first matching catch block is found, it is executed, and the remaining catch blocks are ignored.
Therefore, it is important to arrange catch blocks in the correct order, with more specific catch blocks first and more general catch blocks last, to ensure that exceptions are caught and handled appropriately. If a more general catch block is placed before a more specific one, it will catch exceptions that should have been handled by the specific catch block, resulting in incorrect program behavior.





















