Deck 7: User-Defined Simple Data Types, Namespaces, and the string Type

Question 1

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

Answer 1

False

Question 2

In C++,____ is a reserved word.

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

Answer 2

B

Question 3

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

Answer 3

D

Question 4

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 5

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 6

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

Question 7

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 8

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

Question 9

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

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

Question 10

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

Question 11

No arithmetic operations are allowed on the enumeration type.

Question 12

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

Question 13

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 14

A function cannot return the value of an enumeration type.

Question 15

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

Question 16

In C++,namespace is a reserved word.

Question 17

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

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

Question 18

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

Question 19

In July ____,ANSI/ISO Standard C++ was officially approved.

A) 1996
B) 1998
C) 1999
D) 2000

Question 20

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 21

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 22

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 23

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 24

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

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

Question 25

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

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

Question 26

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

Question 27

Suppose that str1 and str2 are string variables.After the following statements execute,the value of str2 is "____________________".
str1 = "abc";
str2 = str1 + '-';
str2 = str2 + "xyz";

Question 28

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

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

Question 29

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 30

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

Question 31

Suppose that str1,str2,and str3 are string variables.After the following statements execute,the value of str3 is "____". str1 = "abc";
Str2 = "xyz";
Str3 = str1 + '-' + str2;

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

Question 32

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 33

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

A) using globalType;
B) using namespace globalType:all;
C) using namespace globalType::all;
D) using namespace globalType;

Question 34

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) globalType::printResult();
D) globalType:printResult();

Question 35

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

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

Question 36

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

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

Question 37

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 38

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

Question 39

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 40

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

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

Question 41

The string expression strVar.____________________ returns the index of the first occurrence at or after pos where str is found in strVar.

Question 42

The string expression strVar.____________________ deletes n characters from strVar starting at position pos.

Question 43

Suppose str = "abcd"; After the statement str[1] = 'A'; The value of str is "____________________".

Question 44

Suppose str = "ABCDEFG".The output of the statement
cout << str.length()<< endl;
is ____________________.

Question 45

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

Question 46

For the operator + to work with the string data type,one of the operands of + must be a(n)____________________ variable.

Question 47

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

Question 48

Suppose str = "abcd".After the statement str = str + "ABCD"; the value of str is "____________________".

Question 49

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

Question 50

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