Principles Of Object Oriented Design Chapter 10

Front 1

When illegal division by 0 takes place, an exception object is not created automatically by the object-oriented language application. Select one:

Back 1

False

Front 2

The object-oriented techniques to manage errors, such as dividing a value by 0, comprise the group of methods known as ____. Select one:

Back 2

exception handling

Front 3

If method A calls method B and method B throws an exception, which method will catch the exception, assuming all methods have a catch block? Select one:

Back 3

method B

Front 4

An ____ indicates exception types that might be thrown in the method header. Select one:

Back 4

exception specification clause

Front 5

The ____ block is used when the program uses data files that must be closed. Select one:

Back 5

finally

Front 6

When you create an exception, it is conventional to end its name with ____. Select one:

Back 6

Exception

Front 7

You can create your own exceptions. Select one:

Back 7

True

Front 8

A catch block consists of four different elements: the keyword catch, followed by parentheses that contain an exception type and identifier, statements that take action to handle the error condition, an endcatch statement, and a return statement. Select one:

Back 8

False

Front 9

Many well-designed programs that try code do not include any catch blocks; instead, they contain only ____. Select one:

Back 9

try-finally pairs

Front 10

A system of passing exceptions through the chain of calling methods has great advantages because it allows methods to handle exceptions wherever the programmer has decided it is most appropriate. Select one:

Back 10

True

Front 11

Dividing by 0 is an error in every programming language because it is an operation that is not defined mathematically. Select one:

Back 11

True

Front 12

By inheriting from the Exception class, you gain access to methods contained in the ____.Select one:

Back 12

parent class

Front 13

A ____ is a segment of code that can handle an exception that might be thrown by the try block that precedes it. Select one:

Back 13

catch block

Front 14

In Java, an ArithmeticException is a type of ____. Select one:

Back 14

Exception

Front 15

____ is thrown when you attempt to store an object that is the wrong data type in an array.

Select one:

Back 15

ArrayTypeMismatchException

Front 16

You can only place one statement within each try block. Select one:

Back 16

False

Front 17

A(n) ____ is an unexpected or error condition that occurs while a program is running.

Select one:

Back 17

exception

Front 18

In object-oriented terminology, you "____" a segment of code that might cause an error.

Select one:

Back 18

try

Front 19

A catch block has no return type and ____ be called directly. Select one:

Back 19

cannot

Front 20

To create your own throwable Exception, you usually extend a built-in ____ class. Select one:

Back 20

Exception

Front 21

Using a traditional error-handling method to avoid dividing by 0 prevents the error and makes the method more flexible. Select one:

Back 21

False

Front 22

Probably the most often used error-handling solution before object-oriented programming was to make a decision before working with a potentially error-causing value. Select one:

Back 22

True

Front 23

When a method in an object-oriented program causes an exception, such as dividing by 0, the method ____. Select one:

Back 23

throws the exception

Front 24

When a program throws an exception, you always have to deal with it.

Select one:

Back 24

False

Front 25

The block of code that processes an error in exception handling "____."

Select one:

Back 25

catches the exception

Front 26

When appropriate, specialized ____ classes provide an elegant way for you to handle error situations. Select one:

Back 26

Exception

Front 27

____ statements are program statements that can never execute under any circumstances.

Select one:

Back 27

Unreachable code

Front 28

____ is thrown when an object reference does not correctly refer to a created object.

Select one:

Back 28

NullReferenceException

Front 29

A(n) ____ statement indicates the end of the catch block in the pseudocode.

Select one:

Back 29

endcatch

Front 30

A ____ is one that sends an exception object out of a method so it can be handled elsewhere.

Select one:

Back 30

throw statement

Front 31

The memory location known as the ____ is where the computer stores the list of method locations to which the system must return. Select one:

Back 31

call stack

Front 32

Exceptions can be particularly useful when you throw them from ____, which do not have a return type, so they have no other way to send information back to the calling method.

Select one:

Back 32

constructors

Front 33

When you create a segment of code in which something might go wrong, you place the code in an error block. Select one:

Back 33

False

Front 34

Methods are flexible partly because they are ____.Select one:

Back 34

reusable