exceptions in pascal

Handling Exceptions in Pascal

In Pascal, exceptions can be handled using the try...except block. The try block contains the code that may raise an exception, and the except block contains the code that handles the exception.

try
  { code that may raise an exception }
except
  { code to handle the exception }
end;

Additionally, specific types of exceptions can be handled by specifying the exception type after the except keyword.

try
  { code that may raise an exception }
except
  on E: ExceptionType do
    { code to handle the specific exception type }
end;

It's also possible to use an else block to execute code when no exception is raised within the try block.

try
  { code that may raise an exception }
except
  { code to handle the exception }
else
  { code to execute when no exception is raised }
end;

Furthermore, the finally block can be used to execute code regardless of whether an exception is raised or not.

try
  { code that may raise an exception }
except
  { code to handle the exception }
finally
  { code to execute regardless of exceptions }
end;

These constructs provide a way to handle exceptions and ensure that the program can gracefully recover from unexpected errors.