What does the main interface in an exception handling system look like?

The main interface in the exception handling system in Java is the class Throwable. It is the superclass for all errors and exceptions that can be thrown and caught in a program.

Two important subclasses inherit from it:

• Exception — for exceptions that can be handled and are usually related to errors in the program logic or external conditions.
• Error — for serious errors that are usually not handled (for example, virtual machine errors).

Thus, the exception handling system is based on a class hierarchy where Throwable provides a basic interface for working with errors and exceptions.