A good answer might be:

Yes.

Class Exception and class Error both descend from Throwable. A Java method can "throw" an object of class Throwable. (We will do this later on in this chapter.) For example, the method Integer.ParseInt() will throw an exception if it is asked to convert the characters "Rats" into an integer.

The main difference between Exception and Error is that (with the right code) programs can recover from an Exception, but a program can't recover from an Error.

In the rest of the chapter we will mostly discuss Exceptions.

QUESTION 3:

Does a program have to catch and handle exceptions?