Deck 7: Namespaces, the Class String, and User-Defined Simple Data Types

Question 1

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

A) typedef integer;
B) typedef int;
C) typedef int integer;
D) typedef integer int;

Answer 1

C

Question 2

The following is a valid C++ enumeration type:enum places {1ST, 2ND, 3RD, 4TH};.

Answer 2

False

Question 3

In C++, ____ is a reserved word.

A) deftype
B) typedef
C) typecc
D) alias

Answer 3

B

Question 4

Consider the declaration:​ enum sports {BASKETBALL, FOOTBALL, HOCKEY, BASEBALL, SOCCER};
​
Which of the following statements is true?
​

A) SOCCER-- = BASEBALL
B) BASEBALL++ = SOCCER
C) HOCKEY + FOOTBALL < SOCCER
D) FOOTBALL <= SOCCER

Question 5

Which of the following statements creates an anonymous type?

A) enum grades {A, B, C, D, F};
B) enum grades {};
C) enum {};
D) enum {A, B, C, D, F} grades;

Question 6

The following is a legal C++ enumeration type:enum colorType {BLUE, GREEN, PINK, YELLOW, RED};

Question 7

Which of the following statements declares the studentGrade variable?

A) enum studentGrade {A, B, C, D, F};
B) enum int {A, B, C, D, F} studentGrade;
C) enum studentGrade {A, B, C, D, F} grades;
D) enum grades {A, B, C, D, F} studentGrade;

Question 8

The scope of a namespace member is local to the ____.

A) function
B) block
C) file
D) namespace

Question 9

A function cannot return the value of an enumeration type.

Question 10

What is the output of the following code? enum courses {ALGEBRA, BASIC, PASCAL, PHILOSOPHY, ANALYSIS};
Courses registered;
Registered = ALGEBRA;
Cout << registered << endl;

A) ALGEBRA
B) 0
C) 1
D) "ALGEBRA"

Question 11

No arithmetic operations are allowed on the enumeration type.

Question 12

An enumeration type can be passed as a parameter to a function only by value.

Question 13

The general syntax for accessing a namespace member is: namespace_name->identifier.

Question 14

In C++, namespace is a reserved word.

Question 15

In C++, you can create aliases to a previously defined data type by using the ____ statement.

A) typedef
B) using
C) namespace
D) alias

Question 16

Suppose that you have the following declaration. enum cars {FORD, GM, TOYOTA, HONDA};
Cars domesticCars = FORD;
The statement:domesticCars = static_cast(domesticCars + 1);
Sets the value of domesticCars to ____.

A) FORD
B) GM
C) TOYOTA
D) HONDA

Question 17

In C++, ____ is called the scope resolution operator.

A) .
B) ?
C) :
D) ::

Question 18

The following statement creates an anonymous type:enum {1ST, 2ND, 3RD, 4TH} places;

Question 19

In C++, [] is called the array subscript operator.

Question 20

An anonymous type can be passed as a parameter to a function.

Question 21

The string expression strVar.____________________ inserts all the characters of str at index pos into strVar.

Question 22

The identifiers in the system-provided header files such as iostream, cmath, and iomanip are defined in the namespace ____.

A) cctype
B) stdl
C) std
D) stdlib

Question 23

Consider the following statements:string str = "ABCDEFD"; string::size_type position;
After the statement position = str.find('D'); executes, the value of position is ____.

A) 3
B) 4
C) 6
D) 7

Question 24

The ____ function is used to interchange the contents of two string variables.

A) iterator
B) traverse
C) swap
D) change

Question 25

The values in the domain of an enumeration type are called ____________________.

Question 26

Suppose str = "ABCDEFGHI".The output of the statement cout << str.length() << endl;
Is ____.

A) 7
B) 8
C) 9
D) 10

Question 27

Suppose that str1, str2, and str3 are string variables.After the following statements execute, the value of str3 is "____".

A) abc
B) xyz
C) abc-xyz
D) xyz-abc

Question 28

If a global identifier in a program has the same name as one of the global identifiers in the header file, the compiler generates a(n) ____________________ error.

Question 29

The data type string has a named constant, ____, associated with it.

A) string::size
B) string::size_type
C) string::pos
D) string::npos

Question 30

Consider the following statements:string str1 = "Gone with the wind"; string str2;
After the statement str2 = str1.substr(5,4); executes, the value of str2 is "____".

A) Gone
B) with
C) the
D) wind

Question 31

The length of the string "Hello There." is ____.

A) 11
B) 12
C) 13
D) 14

Question 32

A data type wherein you directly specify values in the variable declaration with no type name is called a(n) ____________________type.

Question 33

Given the following code namespace globalType
{
Void printResult();
}
Which of the following statements is needed to access printResult?

A) globalType.printResult();
B) globalType.printResult;
C) globa

Question 34

Suppose str = "xyzw";.After the statement str[2] = 'Y'; The value of str is "____".

A) xyzw
B) xYzw
C) xyYw
D) xzYw

Question 35

In ANSI/ISO Standard C++, the ____________________ mechanism was designed to solve the problem of overlapping global identifiers.

Question 36

Consider the following statements:string str1 = "ABCDEFGHIJKLM"; string str2;
After the statement str2 = str1.substr(1,4); executes, the value of str2 is "____".

A) ABCD
B) BCDE
C) BCD
D) CDE

Question 37

Considering the statement string str = "Gone with the wind";, the output of the statement cout << str.find("the") << endl; is ____.

A) 9
B) 10
C) 11
D) 12

Question 38

The string expression strVar.____________________ starts at index pos, replaces the next n characters of strVar with all the characters of str.

Question 39

Which of the following statements is used to simplify the accessing of all globalType namespace members?

A) using globalType;
B) using namespace globa

Question 40

Before using the data type string, the program must include the header file ____.

A) enum
B) iostream
C) string
D) std