Multiple Choice
Identify the
choice that best completes the statement or answers the question.
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1.
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plush.PricePerSqYard = 40.99;
If proper naming conventions were used in the
above statement, which of the following statements is true?
a. | PricePerSqYard is a property | c. | 40.99 is a numeric
value | b. | plush is an object | d. | all of the above |
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2.
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A method used to convert from one base type to another is ____.
a. | ChangeValue | c. | ToDouble | b. | Convert() | d. | Convert.ToDouble() |
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3.
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Which of the following is NOT a parameter type?
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4.
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Local variables _____.
a. | are defined inside Main() and other methods | c. | are defined in
class | b. | must be defined as private | d. | determine the data characteristics for the class |
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5.
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Accessors are also referred to as ____.
a. | mutators | c. | properties | b. | getters | d. | Classes |
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6.
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double answer = Math.Pow(3, 2);
The result of the call to Math.Pow( ) in the
above statement is to store ____ in answer:
a. | 9 | c. | 6 | b. | 3,2 | d. | an error
message |
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7.
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The Math class has a number of static methods located in the ____
namespace.
a. | Math | c. | IO | b. | System | d. | Arithmetic |
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8.
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Which of the following is true regarding methods of a class?
a. | You must use the keyword static. | c. | To call methods of the class in the
class, you must prefix the method name with the class name. | b. | They are called
instance methods | d. | No return
type is used when you define a class method. |
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9.
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A property resembles a(n) ____, but is more closely aligned to a(n) ____.
a. | data field, method | c. | object, mutator | b. | method, data field | d. | mutator,
accessor |
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10.
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WriteLine(“Final Grade = {0:N2}”, CalculateGrade(90, 75,
83));
The {0:N2} above indicates the ____.
a. | first argument should display no digits to the right of the decimal | c. | the argument should
be displayed with 0 digits to the left of the decimal and two digits to the right of the
decimal | b. | first argument should display two digits to the right of the
decimal | d. | the argument should
be displayed with 0 digits to the right of the decimal and two digits to the left of the
decimal |
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11.
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In order to call or invoke a nonvalue-returning method, enter the ____.
a. | access modifier followed by the method identifier and list of
arguments | c. | method’s identifier followed by list of arguments | b. | return type followed
by the method identifier and list of parameters | d. | access modifier, return type, and
method’s identifier followed by list of parameters |
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12.
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The ____ specifies what kind of information is returned when the body of the
method is finished executing.
a. | access modifiers | c. | static modifier | b. | parameters | d. | returnType |
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13.
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The static keyword must not be used with ____.
a. | date members | c. | class methods | b. | instance methods | d. | all of the
above |
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14.
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WriteLine(“Final Grade = {0:N2}”, CalculateGrade(90, 75, 83));
In the statement above,
CalculateGrade(90, 75, 83) is ____.
a. | a method call | c. | an identifier of the class | b. | a method
declaration | d. | a parameter for
the WriteLin() method |
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15.
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WriteLine(“Value = {0:N0}”, 12345.9032);
What will be displayed
from the above line?
a. | Value = 12,346 | c. | Value = 12,354 | b. | Value = 12356 | d. | Value =
12,346.0 |
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True/False
Indicate whether the
statement is true or false.
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16.
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ToString( ), Equals( ), GetType( ), and GetHashCode( ) are all methods of the
object class.
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17.
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Design your classes to be as flexible and full-featured as possible. One way to
do this is to include multiple instance data members.
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18.
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When you define a class method, you define its characteristics or fields in
terms of the data.
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19.
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A standard convention used by C# programmers is to use camel case style for
property identifiers; Camel case style convention is also used for data member identifiers.
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20.
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Use a type prefix, such as C for class name. For example, a student class should
be named CStudent.
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21.
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The return type for constructors is always the type of the class.
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22.
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In order to indicate a value is constant and cannot be changed, the keyword
constant is added.
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23.
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A standard convention used by C# programmers is to use Pascal case style for
class, data member identifiers, and method identifiers.
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24.
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Ceiling( ), Pow( ), and Floor( ) are all static members of the Console
class.
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25.
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The body of a method can include statements that declare other methods.
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