Deck 14: Exception Handling

Question 1

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

Answer 1

False

Question 2

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

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

Answer 2

D

Question 3

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

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

Answer 3

B

Question 4

The code to handle exceptions depends on the type of application you develop.

Question 5

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

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

Question 6

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

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

Question 7

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 8

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

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

Question 9

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

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

Question 10

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

Question 11

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

A) error
B) exception
C) mistake
D) bug

Question 12

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

Question 13

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

Question 14

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 15

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

Question 16

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 17

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

Question 18

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 19

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

Question 20

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

Question 21

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

A) invalid_function
B) invalid_parameter
C) invalid_call
D) invalid_argument

Question 22

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

Question 23

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 24

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 25

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

Question 26

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

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

Question 27

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 28

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 29

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 30

Throwing an exception is typically done using the ____________________ statement.

Question 31

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 32

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

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

Question 33

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

Question 34

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 35

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

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 36

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

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

Question 37

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 38

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 39

The function ____ of the class exception returns a string containing an appropriate message.

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

Question 40

If,during program execution,division by ____________________ occurs with integer values and is not addressed by the program,the program might terminate with an error message or might simply hang.

Question 41

When an exception occurs in a try block,control immediately passes to one of the ____________________ blocks.

Question 42

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

Question 43

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

Question 44

When an exception occurs in a program,the programmer usually has three choices: ____________________ the program,include code in the program to recover from the exception,or log the error and continue.

Question 45

The class ____________________ contains the function what.

Question 46

If a length greater than the maximum allowed for a string object is used,the class ____________________ deals with the error that occurs.

Question 47

The string concatenation operator is ____________________.

Question 48

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

Question 49

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

Question 50

When an exception is thrown in a function,the function can do the following: ____________________; partially process the exception and throw the same exception or a new exception; or throw a new exception.