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

Question 1

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

Answer 1

True

Question 2

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

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

Answer 2

A

Question 3

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

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

Answer 3

D

Question 4

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

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

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 7

What is the output of the following code?

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

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

In C++, namespace is a reserved word.

Question 11

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 12

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

Question 13

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

Question 14

In C++, ____ is a reserved word.

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

Question 15

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

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

Question 16

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

Question 17

No arithmetic operations are allowed on the enumeration type.

Question 18

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

Question 19

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

Question 20

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

Question 21

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 22

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

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

Question 23

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

Question 24

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

Question 25

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 26

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 27

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

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

Question 28

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

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

Question 29

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

Question 30

Given the following code which of the following statements is needed to access printResult?

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

Question 31

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 32

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

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

Question 33

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

Question 34

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 35

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

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

Question 36

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

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

Question 37

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

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

Question 38

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

Question 39

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 40

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

A) using globalType;
B) using namespace globa