True/False
Indicate whether the
statement is true or false.
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1.
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The Java compiler accepts keywords for class names.
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2.
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Buttons inherit their color and shape characteristics from the operating
system.
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3.
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Existing programs do not need constant maintenance or monitoring.
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4.
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WindowAdapter is a Java interface.
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5.
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It is common practice to identify an ActionEvent parameter as e.
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6.
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A servlet is launched from a browser.
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7.
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The parseDouble() method converts a String to a double.
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8.
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The format() method converts a double into a String.
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9.
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Java cannot perform mathematical operations on a String.
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10.
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The final phase of the program development cycle, document the solution,
contains only internal documentation related to the design and code.
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Multiple Choice
Identify the
choice that best completes the statement or answers the question.
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11.
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Which of the following exceptions is not an Exception class defined in
the SDK?
a. | DivideException | c. | NumberFormatException | b. | IOException | d. | ArithmeticException |
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12.
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The ____ is an object that implements the WindowListener interface.
a. | WindowAdapter | c. | WindowObject | b. | WindowEvent | d. | EventHandler |
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13.
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A(n) ____ is convenient when assigning values to two-dimensional arrays or when
keeping track of a table of numbers.
a. | control array | c. | add-and-assign operator | b. | while
loop | d. | nested
loop |
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14.
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The ____ method is triggered when a user clicks an option button in a
CheckboxGroup.
a. | getState() | c. | setState() | b. | itemStateChanged() | d. | addItemListener() |
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15.
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Indentation rules are part of a programmer's ____ convention.
a. | language | c. | coding | b. | class | d. | naming |
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16.
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The main() method of the Calculator class is responsible for ____.
a. | declaring and initializing the Frame components | b. | constructing an
instance of the Calculator | c. | setting up the menu system | d. | adding the
ActionListeners |
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17.
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A switch statement, depending on the evaluated value, transfers control to the
appropriate ____ statement.
a. | catch | c. | case | b. | while | d. | try |
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18.
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An IDE also is called a ____.
a. | scripting tool | c. | mini-browser | b. | text editor | d. | builder tool |
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19.
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The setBounds() method takes ____ arguments.
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20.
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A(n) ____ is a small program that can be downloaded and executed as part of a
displayed Web page.
a. | servlet | c. | superclass | b. | applet | d. | control
structure |
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21.
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The index number assigned to elements of an array also is called a ____.
a. | register | c. | counter | b. | member | d. | subscript |
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22.
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Which of the following is the correct shortcut syntax for creating and
initializing an array?
a. | boolean[3] results = [true, false, true]; | c. | boolean[]
results = [true, false, true]; | b. | boolean[] results = {true, false,
true}; | d. | boolean results =
{true, false, true}; |
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23.
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The keyword, ____, is required by the drawImage() method to hold the location of
the image while it is being loaded from disk.
a. | catch | c. | var | b. | extends | d. | this |
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24.
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In the order of operator precedence for numeric expressions, ____ operations are
performed first.
a. | modular division | c. | addition and/or subtraction | b. | integer
division | d. | multiplication
and/or division |
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25.
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A(n) ____ operator is used to connect two conditional expressions.
a. | equality | c. | arithmetic | b. | logical | d. | relational |
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