ch(8,9)
True/False
Indicate whether the statement is true or false.
____
1. The values in the domain of an enumeration type are called enum values.
____
2. The following is a legal C++ enumeration type:
enum colorType {BLUE, GREEN, PINK, YELLOW, RED};
____
3. The following C++ enumeration type is illegal because DARKGREEN is not a soft color:
enum softColor {LIGHTBLUE, DARKGREEN, PINK, YELLOW, WHITE};.
____
4. The following is a valid C++ enumeration type:
enum places{1ST, 2ND, 3RD, 4TH};.
____
5. The only allowable arithmetic operations on enumeration types are addition and the increment operator.
____
6. The values of an enumeration type cannot be output directly to the standard output device.
____
7. A function cannot return the value of an enumeration type.
____
8. An enumeration type can be passed as a parameter to a function only by value.
____
9. An anonymous type can be passed as a parameter to a function.
____ 10. The following statement creates an anonymous type:
enum {1ST, 2ND, 3RD, 4TH} places;
____ 11. An anonymous type is a data type that has no associated type identifier.
____ 12. In ANSI/ISO Standard C++, the namespace mechanism was designed to solve the problem of overlapping
global identifiers.
____ 13. The namespace mechanism cannot be used with header files with the extension h.
____ 14. Suppose nameSpaceType is a namespace and x is a member (variable of type int) of
nameSpaceType. After the statement
using namespace nameSpaceType;
the following statement is illegal:
nameSpaceType::x = 5;
____ 15. In C++, namespace is a reserved word.
____ 16. In C++, using is not a reserved word.
____ 17. The data type string is a built-in type of the ANSI C++ language.
____ 18. To use the string functions length, substr, and swap, the program must include the header file
iostream.
____ 19. It is legal to concatenate two string literals, such as "abc" and "def".
____ 20. Suppose that str is a string variable. The following statement is legal in C++:
str = "abc" + "xyz";
____ 21. The operator + can be used to concatenate two values of the type string.
____ 22. Suppose that str1 and str2 are string variables. After the following statements execute, the value of
str2 is "abcxyz".
str1 = "abc";
str2 = str1 + '-';
str2 = str2 + "xyz";
____ 23. Suppose str = "abcd". After the statement str = str + "ABCD"; the value of str is "ABCD".
____ 24. Suppose str = "xyzw"; After the statement str[2] = 'Y'; The value of str is "xYzw".
____ 25. When determining the length of a string, embedded blank spaces are ignored.
____ 26. Suppose str = "ABCDEFGHI". The output of the statement
cout << str.length() << endl;
is 8 since the position of the first character in str is 0.
____ 27. The length of the string "Hello There." is 12.
____ 28. The function substr returns true if its second argument is a substring of its first argument.
Multiple Choice
Identify the choice that best completes the statement or answers the question.
____ 29. Suppose that you have the following declaration.
enum cars {FORD, GM, TOYOTA, HONDA};
cars demesticCars = FORD;
The statement
domesticCars = static_cast<cars>(domesticCars + 1);
sets the value of domesticCars to ____.
a. FORD
c. TOYOTA
b. GM
d. HONDA
____ 30. Consider the declaration
enum sports {BASKETBALL, FOOTBALL, HOCKEY, BASEBALL, SOCCER};
which of the following statements is true?
a. SOCCER-- = BASEBALL
c. HOCKEY + FOOTBALL < SOCCER
b. BASEBALL++ = SOCCER
____ 31. What is the output of the following code?
d. FOOTBALL <= SOCCER
enum courses {ALGEBRA, BASIC, PASCAL, PHILOSOPHY, ANALYSIS};
courses registered;
registered = ALGEBRA;
cout << registered << endl;
____ 32.
____ 33.
____ 34.
____ 35.
____ 36.
____ 37.
____ 38.
____ 39.
____ 40.
a. ALGEBRA
c. 1
b. 0
d. "ALGEBRA"
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;
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;
In C++, you can create aliases to a previously defined data type by using the ____ statement.
a. typedef
c. namespace
b. using
d. alias
In C++, ____ is a reserved word.
a. deftype
c. typecc
b. typedef
d. alias
Which of the following is a valid C++ statement?
a. typedef integer;
c. typedef int integer;
b. typedef int;
d. typedef integer int;
In July ____, the ANSI/ISO Standard C++ was officially approved.
a. 1996
c. 1999
b. 1998
d. 2000
In C++, ____ is called the scope resolution operator.
a. .
c. :
b. ?
d. ::
The scope of a namespace member is local to the ____.
a. function
c. file
b. block
d. namespace
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();
____ 41.
____ 42.
____ 43.
____ 44.
d. globalType:printResult();
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;
The identifiers in the system-provided header files such as iostream, cmath, and iomanip are defined in
the namespace ____.
a. cctype
c. std
b. stdl
d. stdlib
Before using the data type string, the program must include the header file ____.
a. enum
c. string
iostream
b.
d. std
Suppose that str1, str2, and str3 are string variables. After the following statements above execute, the
value of str3 is "____".
str1 = "abc";
str2 = "xyz";
str3 = str1 + '-' + str2;
a. abc
c.
b. xyz
d.
____ 45. Suppose str = "xyzw";. After the statement
a. xyzw
c.
b. xYzw
d.
____ 46. Consider the following C++ code.
abc-xyz
xyz-abc
str[2] = 'Y'; The value of str is "____".
xyYw
xzYw
string str = "goofy";
string newStr = "";
for (int j = 0; i < str.length(); j++)
newStr = str[j] + newStr;
cout << newStr << endl;
The output is ____.
a. goofy
c. foogy
b. ygoof
d. yfoog
____ 47. Suppose str = "ABCDEFGHI". The output of the statement
cout << str.length() << endl;
is ____.
a. 7
c. 9
b. 8
d. 10
____ 48. The length of the string "Hello There. " is ____.
a. 11
c. 13
b. 12
d. 14
____ 49. 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
c. 6
b. 4
d. 7
____ 50. Considering the statement string str = "Gone with the wind";, the output of the statement cout
<< str.find("the") << endl; is ____.
a. 9
c. 11
b. 10
d. 12
____ 51. 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
c. BCD
b. BCDE
d. CDE
____ 52. Consider the following statements.
string str1 = "Gone with the wind";
string str2;
After the statement str2 = str1.substr(5,8); executes, the value of str2 is "____".
the
a. Gone
c.
b. with
d. wind
____ 53. The ____ function is used to interchange the contents of two string variables.
a. iterator
c. swap
b. traverse
d. change
ch(8,9)
Answer Section
TRUE/FALSE
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F
T
F
F
F
T
F
F
F
F
T
T
T
F
T
F
F
F
F
F
T
F
F
F
F
F
T
F
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1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
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421
421
421
421
423
424
426
426
428
428 | 421
428
441
441 | 465
442
442
443
446-447
447 | 450
447
447
447
447
447
448
450
450
450
456
PTS:
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1
1
1
1
1
1
1
1
1
1
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423
423
424-426
428
428
429
429
429
441
442
MULTIPLE CHOICE
29.
30.
31.
32.
33.
34.
35.
36.
37.
38.
ANS:
ANS:
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B
D
B
D
D
A
B
C
B
D
39.
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45.
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47.
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D
C
D
C
C
C
C
D
C
C
A
B
B
B
C
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1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
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442
442
443
446
447
447
448
448-450
450
450
453
453
456
456
458