Java: An Introduction to Problem Solving and Programming (8th Edition)
Java: An Introduction to Problem Solving and Programming (8th Edition)
8th Edition
ISBN: 9780134462035
Author: Walter Savitch
Publisher: PEARSON
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Chapter 9.1, Problem 3STQ

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Exception:

  • • It is nothing but an undesirable or unexpected event that occurs at run time which interrupts the normal flow of the program’s commands.
  • • Exception handling is a mechanism that handle runtime errors like “ClassNotFoundException”, “SQLException”, and so on.
  • • An advantage of exception handling is to maintain a flow of the program.
  • • An exception can be handled using “try” and “catch” block.

Types of exceptions:

There are two types of exceptions. They are:

  • Checked Exception:
    • ○ A class that inherits a “Throwable” class except “RunTimeException” and “Error” are called as checked exceptions.
    • Example:“IOException”
  • Unchecked Exception:
    • ○ A class that inherits a “RunTimeException” class is called as unchecked exceptions.
    • Example:“ArrayIndexOutOfBoundException”

Exception is an object: The exception is considered as an object because, the exception creates an object that contains a message...

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Other than the Object class, what is the superclass for all exceptions?
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Java: An Introduction to Problem Solving and Programming (8th Edition)

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