Question

All exception types are subclasses of the built-in class

(a) Exception
(b) RuntimeException
(c) Error
(d) Throwable
(e) None of the above.

Answer 1

All Java exception types are subclasses of the built-in class Throwable, which is the top-level class for errors and exceptions in Java. Throwable has two main subclasses, Error and Exception, with RuntimeException being a subclass of Exception.

Step-by-step explanation:

In Java, the hierarchy of exceptions has a top-level class called Throwable, which is the superclass for all errors and exceptions. Beneath Throwable, there are two main subclasses: Error, which is intended for serious errors that a normal application should not try to catch, and Exception, which is meant for conditions that a normal application might want to catch.

RuntimeException is a subclass of Exception, and it includes those exceptions that can be thrown during the normal operation of the JVM (Java Virtual Machine), which are typically ignored in the early stages of programming. So the correct answer to the question is (d) Throwable.