Multiple Choice
Identify the
choice that best completes the statement or answers the question.
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1.
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JavaBeans provide the benefit of ____.
a. | aggregation | c. | portability | b. | hosting | d. | reusability |
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2.
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____ are insertions within the code that explain the purpose of the code
statements.
a. | Comments | c. | Requirements | b. | Algorithms | d. | Solutions |
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3.
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____ are values that cause a certain rule to become effective.
a. | Boundary values | c. | Operation values | b. | Method values | d. | Trigger values |
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4.
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In programming, an action is ____ if it takes place without any visible effect
other than the desired output.
a. | efficient | c. | robust | b. | parsimonious | d. | transparent |
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5.
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____ allows an instruction to be given to an object using a generalized rather
than a specific, detailed command.
a. | Aggregation | c. | Inheritance | b. | Encapsulation | d. | Polymorphism |
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6.
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A(n) ____ is a location in computer memory that can change values as the code
executes.
a. | argument | c. | parameter | b. | identifier | d. | variable |
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7.
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Which of the following is not a characteristic of the main()
method?
a. | it is public | b. | it is static | c. | its return type is
void | d. | it has a parameter with an Integer data type |
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8.
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The System class extends methods from its superclass, which is the ____
class.
a. | Array | c. | Object | b. | Exception | d. | JavaBean |
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9.
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A(n) ____, identified by the = new notation, declares the type of data or object
to be stored and assigns it a variable name in the computer's memory.
a. | constructor | c. | declarer | b. | destructor | d. | initializer |
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10.
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The ____ method accepts horizontal and vertical coordinates as parameters that
identify where to draw the graphic.
a. | drawImage() | c. | getImage() | b. | getDocumentBase() | d. | setBackground() |
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11.
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The ____ of a class are instructions that the class uses to manipulate values,
generate output, or perform actions.
a. | attributes | c. | functions | b. | classes | d. | methods |
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12.
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A(n) ____ is any word you choose to name an item in a Java program.
a. | argument | c. | parameter | b. | identifier | d. | variable |
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13.
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A ____ error can surface during execution due to an unanticipated action of the
user.
a. | logic | c. | syntax | b. | semantic | d. | system |
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14.
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Typing a(n) ____ after the package name in an import statement tells the program
to load all the classes within a package.
a. | asterisk | c. | forward slash | b. | comma | d. | semicolon |
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15.
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Which of the following is not an advantage of using Applet Viewer rather
than a browser?
a. | Applet Viewer ignores irrelevant HTML code | b. | Applet Viewer does
not have to be Java-enabled | c. | Applet Viewer uses less memory than a
browser | d. | Applet Viewer catches incorrect references to an
applet |
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True/False
Indicate whether the
statement is true or false.
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16.
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Java is not suitable for developing programs that are distributed over a
network.
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17.
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The impetus, or trigger, that causes a message to be sent to an object must come
from another object.
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18.
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The Java Applet Viewer is part of the Java SDK.
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19.
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In TextPad, the Save button is enabled only when changes have been made to the
document.
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20.
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The compilation process creates a new file for each class in a program.
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21.
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JavaScript is used to insert code statements directly into the HTML of a Web
page.
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22.
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Servlets can be used with Java Server Pages to separate the business logic on
the server from the display logic on the client machine.
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23.
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Comments are executed before the program runs.
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24.
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The import statement is placed at the end of the Java source code.
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25.
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The logic of assigning a value to a variable in Java works from left to
right.
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