pascal error handling

In Pascal, error handling is achieved through the use of exception handling mechanisms. These mechanisms allow you to catch and handle different types of exceptions that may occur during the execution of your program.

To handle errors in Pascal, you can use the try..except block. The try block contains the code that may raise an exception, while the except block is used to handle the exception if it occurs.

Here's an example of how to use exception handling in Pascal:

try
  // Code that may raise an exception
  // ...
except
  // Code to handle the exception
  // ...
end;

Inside the except block, you can write code to handle the specific exception that occurred. This can include displaying an error message, logging the error, or taking any other necessary action. You can also have multiple except blocks to handle different types of exceptions.

Additionally, you can use the finally block to specify code that should always be executed, regardless of whether an exception occurred or not. The finally block is optional.

try
  // Code that may raise an exception
  // ...
except
  // Code to handle the exception
  // ...
finally
  // Code that will always be executed
  // ...
end;

By using the try..except block, you can effectively handle errors and exceptions in your Pascal programs.