Multiple Choice
Identify the
letter of the choice that best completes the statement or answers the question.
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1.
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Which of the following declarations would properly create A and B as integer
variables?
a. | int A, B | c. | int A; B | b. | A, B int | d. | int A B |
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2.
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Which of the following expressions is a concatenation operation?
a. | ("append" + "age") | c. | "there" | b. | x / y | d. | 1+ 2 + 3 |
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3.
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Tell if the expression is double, int, or neither: 4 + 3.0
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4.
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Which of the following expressions would assign the sum of A, B, and C to the
variable D?
a. | sum (D = A + B + C) | c. | D <=
A + B + C | b. | A + B + C =
D | d. | D =
A + B + C |
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5.
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What is a correct precedence rule for the arithmetic operators listed?
a. | % / * - + | c. | + * % / - | b. | / % + - * | d. | * % / + - |
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6.
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Tell if the expression is double, int, or neither: 3.0 + 4.0
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7.
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A prompting message ____.
a. | should tell what type of input is desired | b. | can be used with
both input and output statements | c. | explains to the user what is to be
done | d. | All of the above. |
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8.
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A correct statement to get values for the variables A, B, and C would be:
a. | cin >> A >> b >> c | c. | cin >>A >> B >>
C | b. | cin >> A, B, C | d. | cin >> A >> B >> C >>
endl |
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9.
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Which of the following statements would assign the value of 40 to the variable
Test8?
a. | Test8 = 40 | c. | 40 = Test8 | b. | Test8 <
= 40 | d. | cin >>
(Test8 = 40) |
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10.
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Assume the following: #include "apstring.h"
apstring city;
Which of the
following statements prompts the user to enter the name of their city and then reads the string to
variable city? a. | cin >> "Enter your city: ";
cout << city; | b. | cout << "Enter
your city: ";
getline (cin, city); | c. | cout << "Enter your city: ";
cin >>
city; | d. | cout << "Enter your city: ";
getline >> city; |
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11.
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What operator can be used for arithmetic conversions?
a. | multiplication | c. | left paren | b. | minus | d. | modulus |
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12.
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Tell if the expression is double, int, or neither: 5 / 3
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13.
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Which is not a rule in an assignment statement?
a. | Constants can be on the left side of the assignment symbol. | b. | The previous value
of a variable is always thrown away. | c. | No constants on the left side of the assignment
symbol. | d. | Variable and expression are of compatible data types. |
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Problem
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14.
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Find the value of the expression: 14 + 75 * (18 - 5 % 2)
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15.
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Find the value of the expression: 8 - 7 / 3
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16.
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Find the value of the expression: 7 + 4 * 12
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17.
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Find the value of the expression: 3.5 + 8.7 / 2.1
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18.
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Find the value of the expression: 12 * 4 + 7
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19.
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Find the value of the expression: 5.2 * 2.0
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20.
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Find the value of the expression: 12 % 3 * 6 - 7
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True/False
Indicate whether the
sentence or statement is true or false.
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21.
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The getline function reads all of the characters on a
line up until the first blank space is encountered.
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22.
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A temporary output statement in your program is one debugging technique.
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23.
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The empty string is represented by NULL.
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24.
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Multiplication is evaluated before addition.
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25.
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Character constants assigned to a character variable require double quotation
marks for enclosing the constant.
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26.
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The function to round off real numbers is called int.
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27.
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The concatenation operator changes the contents of its operands.
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28.
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Declaring a variable sets aside a memory location for its storage in the
computer.
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29.
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The assignment statement, x += y, can represent an arithmetic operation or a
concatenation operation.
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30.
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A variable declared with string can be assigned to a variable declared with
"char".
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31.
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Constants should be declared if numbers are to be used frequently in a
program.
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