Java Exception Handling Overview
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Questions and Answers

What is an exception in Java?

  • An object that describes an error condition that has occurred in a piece of code (correct)
  • A compile-time error
  • A constraint of the Java execution environment
  • A manual check handled through the use of error codes

    • In computer languages that do not support exception handling, how are errors typically checked and handled?

  • By creating objects representing the errors
  • No checking or handling is possible
  • Through the use of error codes (correct)
  • Automatically by the language interpreter

    • What happens when an exceptional condition arises in Java?

  • An error code is generated
  • The exception is ignored
  • The program terminates immediately
  • An object representing that exception is created and thrown in the method that caused the error (correct)

    • How are exceptions caught and processed in Java?

    <p>By the method that caused the error</p> Signup and view all the answers

    What kind of errors do exceptions thrown by Java relate to?

    <p>Fundamental errors that violate the rules of the Java language or the constraints of the Java execution environment</p> Signup and view all the answers

    When are manually generated exceptions typically used in Java?

    <p>To report some error condition to the caller of a method</p> Signup and view all the answers

    What keyword is used to manually throw an exception in Java?

    <p>throw</p> Signup and view all the answers

    Which keyword is used to monitor program statements for exceptions in Java?

    <p>try</p> Signup and view all the answers

    What type of exceptions are automatically thrown by the Java run-time system?

    <p>Error</p> Signup and view all the answers

    Which class is used for exceptional conditions that user programs should catch in Java?

    <p>Exception</p> Signup and view all the answers

    What is the keyword used to specify that an exception is thrown out of a method in Java?

    <p>throws</p> Signup and view all the answers

    What subclass of Exception defines exceptions that are not expected to be caught under normal circumstances by a program in Java?

    <p>Error</p> Signup and view all the answers

    What is the top class in the exception class hierarchy in Java?

    <p>Throwable</p> Signup and view all the answers

    Which keyword is used to put code that must be executed after a try block completes in Java?

    <p>finally</p> Signup and view all the answers

    What is the subclass of Exception that includes things such as division by zero and invalid array indexing in Java?

    <p>RuntimeException</p> Signup and view all the answers

    What is the class that should be subclassed to create custom exception types in Java?

    <p>Exception</p> Signup and view all the answers

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