Types of Exceptions

•There is another classification of exceptions based on whether Java’s compiler, checks, whether the method raising the exceptions is providing the handler or not.
•Uncheked Exceptions: Java’s compiler doesn’t check for handlers.
•Checked Exceptions: Java’s compiler checks whether the handlers for the exceptions are provided or not.
•All classes of “RuntimeException” and “Error” are unchecked exceptions.
•All Checked Exceptions that are to be raised in a method, must be provided beside the “throws” keyword.
•All the subclasses of “Error” and “RuntimeException” are unchecked exceptions.

Uncaught Exceptions:

•If in your program, a statement or set of statements raises a run-time error (exception) and no code is provided to handle that exception, then Java run-time system will invoke the default handler for handling the exception based on the type of exception thrown.
•The default handler prints a stack trace which contains: the type of exception, the method in which exception is thrown and the line number at which the exception is thrown.


Java’s Built-in Exceptions: