Deck 14: Exception Handling

Question 1

To use the assert function in your program, you should include the statement ____.

A) #include
B) #include
C) #include
D) #include

Answer 1

B

Question 2

The order of the catch blocks does not affect the program.

Answer 2

False

Question 3

An object that is being thrown cannot be an anonymous object.

Answer 3

False

Question 4

Which of the following is a valid C++ statement?

A) assert(0 = divisor);
B) assert(divisor != 0);
C) assert(divisor 0);
D) assert(divisor is 0);

Question 5

In C++, any class can be considered an exception class.

Question 6

A catch block can have, at most, ____ catch block parameter(s).

A) zero
B) one
C) two
D) three

Question 7

The function ____ can check whether an expression meets the required conditions; if the conditions are not met, it terminates the program.

A) check
B) look
C) assert
D) what

Question 8

The statements that may generate an exception are placed in a ____ block.

A) throw
B) finally
C) try
D) catch

Question 9

Which of the following blocks is designed to catch any type of exception?

A) catch(){ }
B) catch(...){ }
C) catch(*){ }
D) catch(exception){ }

Question 10

If the catch block with an ellipses (in the heading) is needed, then it should be the first catch block in a sequence of try/catch blocks.

Question 11

If no exception is thrown in a try block, all catch blocks associated with that try block are ignored.

Question 12

A(n) ____ is an occurrence of an undesirable situation that can be detected during program execution.

A) crash
B) exception
C) misfire
D) bug

Question 13

A catch block specifies the type of exception it can catch and immediately terminates the program.

Question 14

When division by zero occurs and the problem is not addressed, the program crashes with an error message that is ____ dependent.

A) code
B) computer
C) platform
D) IDE

Question 15

The try block is followed by one or more ____ blocks.

A) throw
B) finally
C) do
D) catch

Question 16

C++ provides all the exception classes you will ever need.

Question 17

One of the typical ways of dealing with exceptions is to use an if statement.

Question 18

The heading of a try block can contain ellipses in place of a parameter.

Question 19

Which of the following statements throws a valid exception in C++?

A) throw.function();
B) throw 2;
C) throws str;
D) 4 throw;

Question 20

An exception is an occurrence of an undesirable situation that can be detected during program compilation.

Question 21

In a sequence of try/catch blocks, the last catch block of that sequence should be ____.

A) catch(...){ }
B) catch(int x){ }
C) catch(str){ }
D) catch(exception){}

Question 22

All derived classes of the class exception override the function ____________________ to issue their own error messages.

Question 23

The logic_error and runtime_error classes are defined in the header file ____.

A) stdex
B) stdlib
C) stdexcept
D) exception

Question 24

The class ____ is designed to deal with errors that can be detected only during program execution.

A) error
B) exception
C) runtime_error
D) logic_error

Question 25

A(n) ____________________ block specifies the type of exception it can catch and contains an exception handler.

Question 26

Throwing an exception is typically done using the ____________________ statement.

Question 27

Which of the following statements creates a new exception class?

A) class myClass {};
B) class myClass {} implements exception;
C) class myExceptionClass {} extends exception;
D) class myExceptionClass {} throws exception;

Question 28

In C++, throw is a(n) ____________________ word.

Question 29

If you want to include members in your exception class, you typically include the function ____.

A) that
B) this
C) log
D) what

Question 30

Which of the following options should you choose when an exception occurs in the program that analyzes an airline's ticketing transactions?

A) Terminate the program.
B) Include code in the program to recover from the exception.
C) Log the error and continue.
D) Include code in the header file.

Question 31

Suppose you have written a program that inputs data from a file. If the input file does not exist when the program executes, then you should choose which option?

A) Terminate the program.
B) Include code in the program to recover from the exception.
C) Log the error and continue.
D) Include code in the header file.

Question 32

Which of the following classes is derived from the class runtime_error?

A) bad_alloc
B) out_of_range
C) overflow_error
D) length_error

Question 33

The ____________________ of the catch block parameter specifies the type of exception that the catch block can catch.

Question 34

When an exception is thrown in a function, the function-call stack is ____ so that the exception can be caught in the next try/catch block.

A) destroyed
B) allocated
C) unbound
D) unwound

Question 35

The class ____ is designed to deal with illegal arguments used in a function call.

A) illegal_argument
B) bad_argument
C) invalid_call
D) invalid_argument

Question 36

To deal with logical errors in a program, such as a string subscript out of range or an invalid argument to a function call, several classes are derived from the class ____.

A) logic_error
B) logic_exception
C) runtime_error
D) exception

Question 37

The general syntax to rethrow an exception caught by a catch block is: ____ (in this case, the same exception is rethrown).

A) rethrow;
B) throw;
C) rethrow exception;
D) throw exception;

Question 38

The class ____ is the base of the classes designed to handle exceptions.

A) class
B) exception
C) logic_error
D) runtime_error

Question 39

The function ____ returns a string containing an appropriate message.

A) where
B) what
C) when
D) log

Question 40

When an exception is thrown, if the program does not handle the exception, then the function ____ is called to terminate the program.

A) log
B) what
C) terminate
D) close

Question 41

If the operator new cannot allocate memory space, this operator throws a(n) ____________________ exception.

Question 42

The class ____________________ deals with the string subscript out of range error.