Lesson: Exceptions
The Java programming language uses
exceptions
to handle errors and other exceptional events. This lesson describes
when and how to use exceptions.
- An exception is an event that occurs during the execution of a program
that disrupts the normal flow of instructions.
- This section covers how to catch and handle exceptions. The discussion
includes the try, catch, and finally
blocks, as well as chained exceptions and logging.
- This section covers the throw statement and the
Throwable class and its subclasses.
- This section describes the
try-with-resources statement, which is a try statement that declares one or more resources. A resource is as an object that must be closed after the program is finished with it. The try-with-resources statement ensures that each resource is closed at the end of the statement.
- This section explains the correct and incorrect use of the unchecked
exceptions indicated by subclasses of
RuntimeException.
- The use of exceptions to manage errors has some advantages over
traditional error-management techniques. You'll learn more in
this section.
