Java Programming 8th Edition Joyce Farrell - Solutions

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Which statements about modifiers are true?Select the two correct answers.(a) Abstract classes can declare final methods.(b) Fields can be declared as native.(c) Non-abstract methods can be declared in abstract classes.(d) Classes can be declared as native.(e) Abstract classes can be declared as
Which statement is true?Select the one correct answer.(a) The values of transient fields will not be saved during serialization.(b) Constructors can be declared as abstract.(c) The initial state of an array object constructed with the statement int[] a = new int[10] will depend on whether the array
A gradient fill is a gradual change in ______________.a. Colorb. Font sizec. Drawing styled. Line thickness
Event handlers are ___________.a. Abstract classesb. Concrete classesc. Listenersd. Methods
When you resize a Container that uses BorderLayout, _______________.a. The Container and the regions both change in sizeb. The Container changes in size, but the regions retain their original sizesc. The Container retains its size, but the regions change or might disappeard. Nothing happens
Write an application that extends JPanel and displays 15 nested circles, like those in the center panel in Figure 16-43. You may use only one drawOval() statement in the program. Save the file as JNestedCirclesPanel.java.Figure 16-43
With 2D methods, the drawing line is known as a _____.a. Brushb. Strokec. Beltd. Draw
The process of drawing with Java 2D objects includes ______________.a. Specifying the rendering attributesb. Setting a drawing strokec. Both of the aboved. None of the above
A Graphics2D object can be produced by ______________.a. Calling setGraphics2D()b. Calling getGraphics2D()c. Casting a Graphics2D objectd. Casting a Graphics object
The data types returned by the getScreenResolution() and getScreenSize() methods are ______________.a. Both intsb. An int and an object of type Dimensionc. Both objects of type Dimensiond. Both doubles
You can discover which fonts are available on your system by using the ______________.a. GetAvailableFontFamilyNames() method of the GraphicsEnvironment classb. GetFonts() method of the Graphics classc. GetMyFonts() method of the GraphicsFonts classd. GetAllFonts() method of the Fonts class
To be certain that a vertical series of Strings drawn with object g has enough room to appear on a JPanel, which of the following expressions should you use for the vertical coordinate?a. Y += g.getFontMetrics().getHeight();b. Y += g.getFontMetrics().getLeading();c.
The measurement of an uppercase character from the baseline to the top of the character is its ______________.a. Ascentb. Descentc. Leadingd. Height
You use the ______________ method to copy any rectangular area to a new location.a. CopyRect()b. CopyArea()c. RepeatRect()d. RepeatArea()
The method you use to create a solid arc is ______________.a. SolidArc()b. FillArc()c. ArcSolid()d. ArcFill()
The zero-degree position for any arc is at the ______________ o’clock position.a. Threeb. Sixc. Nined. Twelve
If you draw an oval with the same value for width and height, you draw a(n) ______________.a. Circleb. Squarec. Rounded squared. Ellipsis
The statement g.drawRoundRect(100, 100, 100, 100, 0, 0); draws a shape that looks most like a ______________.a. Squareb. Round-edged rectanglec. Circled. Straight line
If you use the setColor() method to change a Graphics object’s color to yellow, ______________.a. Only the next output from the object appears in yellowb. All output from the object for the remainder of the method always appears in yellowc. All output from the object for the remainder of the
The statement g.drawString(someString, 50, 100); places someString’s ______________ corner at position 50, 100.a. Upper-leftb. Lower-leftc. Upper-rightd. Lower-right
The three arguments to the drawString() method represent _____.a. A String and horizontal and vertical positionsb. A String, a Color, and a Fontc. A Graphics object, a String, and a Point positiond. A JPanel, a Graphics object, and a Font
The method where you should place drawing code for Swing objects is ______________.a. CallPaint()b. Paint()c. RequestPaint()d. PaintComponent()
In Java, repainting of a visible surface is triggered by _____.a. The operating systemb. The applicationc. Either of thesed. None of these
You can use the ___________ method to determine the Object in which an ActionEvent originates.a. GetObject()b. GetEvent()c. GetOrigin()d. GetSource()
The MouseEvent method that allows you to identify double-clicks is ___________.a. GetDouble()b. IsClickDouble()c. GetDoubleClick()d. GetClickCount()
The KeyEvent method getKeyChar() returns a(n) ___________.a. Intb. Charc. KeyEventd. AWTEvent
The return type of getComponent() is ___________.a. Objectb. Componentc. Intd. Void
A JPanel is a ___________.a. Windowb. Containerc. Both of the aboved. None of the above
As you add new components to a GridLayout, ___________.a. They are positioned from left to right across each row in sequenceb. You can specify exact positions by skipping some positionsc. Both of the aboved. None of the above
The statement setLayout(new GridLayout(2,7)); establishes a GridLayout with ___________ horizontal row(s).a. Zerob. Onec. Twod. Seven
The GridBagLayout class allows you to ___________.a. Add components to precise locations within the gridb. Indicate that specific components should span multiple rows or columns within the gridc. Both a and bd. None of the above
The statement ___________ ensures that components are placed from left to right across a JApplet surface until the first row is full, at which point a second row is started at the applet surface’s left edge.a. SetLayout(FlowLayout.LEFT);b. SetLayout(new FlowLayout(LEFT));c. SetLayout(new
Which of the following is the correct syntax for adding a JButton named b1 to a Container named con when using CardLayout?a. Con.add(b1);b. Con.add("b1");c. Con.add("Options", b1);d. None of the above
When you create a JFrame named myFrame, you can set its layout manager to BorderLayout with the statement _______________.a. MyFrame.setLayout = new BorderLayout();b. MyFrame.setLayout(new BorderLayout());c. SetLayout(myFrame = new BorderLayout());d. SetLayout(BorderLayout(myFrame));
If you add fewer than five components to a BorderLayout, _______________.a. Any empty component regions disappearb. The remaining components expand to fill the available spacec. Both a and bd. None of the above
A file channel .a. Can be read fromb. Can be written toc. Is seekabled. All of the above are true.
The Path class getFileName() method returns .a. The String representation of a Pathb. An absolute Pathc. The first item in a Path’s list of name elementsd. The last item in a Path’s list of name elements
Which methods can throw an Exception?a. Methods with a throws clauseb. Methods with a catch blockc. Methods with both a throws clause and a catch blockd. Any method
A ____ array has rows of different lengths.a. Raggedb. Jaggedc. Haggardd. Tattered
The following defines a _____________ array:int[][] nums={ {1, 2}, {3, 4}, {5, 6} };a. One-dimensionalb. Two-dimensionalc. Three-dimensionald. Six-dimensional
Using a bubble sort involves _____________.a. Comparing parallel arraysb. Comparing each array element to the averagec. Comparing each array element to the adjacent array elementd. Swapping every array element with its adjacent element
When you place objects in order beginning with the object with the highest value, you are sorting in _____________ order.a. Acquiescingb. Ascendingc. Demeaningd. Descending
Array names represent _____________.a. Valuesb. Functionsc. Referencesd. Allusions
The prefix ++ is a ___________ operator.a. Unaryb. Binaryc. Tertiaryd. Postfix
What is the output of the following code segment?t = 7;if(t > 7){ System.out.print("AAA"); System.out.print("BBB");}a. AAAb. BBBc. AAABBBd. Nothing
In Java, the value of (14 > 7) is ____________.a. Trueb. Falsec. 4d. 7
Which of the following is not a type of if statement?a. Single-alternativeb. Dual-alternativec. Reversed. Nested
Suppose that you have created a program with only the following variables.int a = 5;int b = 6;Suppose that you also have a method with the following header:public static void mathMethod(int a)Which of the following method calls are legal?a. MathMethod(a);b. MathMethod(b);c. MathMethod(a + b);d.
Write an application that extends JPanel and uses the Graphics2D environment to create a GeneralPath object. Use the GeneralPath object to create the outline of your favorite state. Display the state’s name at the approximate center of its boundaries. Save the file as JStatePanel.java.
a. Write an application that extends JPanel and displays your name. Place boxes of different colors around your name at intervals of 10, 20, 30, and 40 pixels. Save the file as JBorderPanel.java.b. Modify the JBorderPanel program so that when the user enters any name in a JTextField, the name is
Use polygons and lines to create a graphics image that looks like a fireworks display. Write an application that extends JPanel and displays the fireworks. Save the file as JFireworksPanel.java.
a. Write an application that extends JPanel and displays a yellow smiling face on the screen. Save the file as JSmileFacePanel.java.b. Add a JButton to the JSmileFacePanel program so the smile changes to a frown and then back to a smile each time the user clicks the JButton. Save the file as
In the statement x.drawString greeting("Hi ", 10, 10);, x is a ______________ object.a. Graphicsb. Stringc. JPaneld. Font
Write an application that extends JPanel and displays diagonal lines in a square, like those in the last panel in Figure 16-43. Save the file as JDiagonalLinesPanel.java. Figure 16-43 Output of the programs described in exercises 4, 5, and 6
Write an application that extends JPanel and displays eight nested rectangles, like those in the first panel in Figure 16-43. You may use only one drawRect() statement in the program. (Hint: Use it in a loop.) Save the file as JNestedBoxesPanel.java. Figure 16-43 Output of the programs described in
a. In Chapters 7 and 8, you created a game named Secret Phrase in which the user guesses a randomly selected secret phrase by entering one letter at a time. Now create a GUI application that plays the game, allowing users to choose a letter by selecting one of 26 buttons.Disable a letter button
Write an application that extends JPanel and displays a phrase. Each time the user clicks a button, alternate between displaying the phrase upside down and right-side up. Save the application as JUpsideDownPanel.java.
The paintComponent() method header requires a(n) ______________ argument.a. Graphicsb. intc. Stringd. Color
You developed an interactive GUI application for Sammy’s Seashore Rentals. Now, design a JPanel that uses graphics to display a logo for the company, and modify the GUI application to include it. Save the JPanel class as JSammysLogoPanel.java, and save the GUI application as JSammysSeashore.java.
Create an application that plays a card game named Lucky Seven. In real life, the game can be played with seven cards, each containing a number from 1 through 7. The cards are shuffled and dealt number-side down. To start the game, a player turns over any card. The exposed number on the card
a. Write an application that extends JPanel and displays a phrase in a large font. Each time the user clicks a JButton, display the same phrase in a different color, a little further to the right, and in a slightly smaller font. Allow only three clicks. Save the file as
You developed an interactive GUI application for Carly’s Catering. Now, design a JPanel that uses graphics to display a logo for the company, and modify the GUI application to include it. Save the JPanel class as JCarlysLogoPanel.java, and save the GUI application as JCarlysCatering.java.
a. In Chapter 9, you created a Tic Tac Toe game in which you used a 2D array of characters to hold Xs and Os for a player and the computer. Now create a JPanel that uses an array of nine JButtons to represent the Tic Tac Toe grid. When the user clicks a button that has not already been taken, place
Write an application that extends JPanel and displays a phrase in every font size from 6 through 20. Save the file as JFontSizesPanel.java.
Which of the following is true in a standard menu application?a. A JMenuItem holds a JMenu.b. A JMenuItem holds a JMenuBar.c. A JMenuBar holds a JMenu.d. A JMenu holds a JMenuBar
When a user clicks a JPanel or JFrame, the action generates a(n) ___________.a. ActionEventb. MouseEventc. PanelEventd. KeyboardEvent
AWTEvent is the child class of ___________.a. EventObjectb. Eventc. ComponentEventd. ItemEvent
The ___________ class allows you to arrange components as if they are stacked like index or playing cards.a. GameLayoutb. CardLayoutc. BoxLayoutd. GridBagLayout
Create a JFrame for Java Junior College. Use menus to allow the user to access information about different campuses, major fields of study offered, and activities. Include at least two options in each menu. Save the file as JavaJuniorCollege.java.
a. Create an application that uses a graphic interface to capture employee data and writes that data to a random access output file. The data required for each employee includes an employee ID number from 1 through 99 inclusive, the first and last names of the employee, and the employee’s hourly
The game StopGate is played on a checkerboard with a set of dominoes; each domino is large enough to cover two checkerboard squares. One player places a domino horizontally on the checkerboard, covering any two squares. The other player then places a domino vertically to cover any other two
a. Search the Java Web site for information on how to use a JTextArea. Write an application for the WebBuy Company that allows a user to compose the three parts of a complete e-mail message: the “To:”, “Subject:”, and “Message:” text. The “To:” and “Subject:” text areas should
Create the game Lights Out using a BorderLayout. Place a five-by-five grid of panels in one region, and reserve another region for a congratulatory message. Randomly set each panel in the grid to a dark color or light color. The object of the game is to force all the panels to be dark, thus turning
Write an application that lets you determine the integer value returned by the InputEvent method getModifiers() when you click your left, right, or—if you have one—middle mouse button on a JFrame. Save the file as JLeftOrRight.java.
Create aMine Sweeper game by setting up a grid of rows and columns in which “bombs” are randomly hidden. You choose the size and difficulty of the game; for example, you might choose to create a fairly simple game by displaying a four-by-five grid that contains four bombs. If a player clicks a
When you use ___________, the components you add fill their region; they do not retain their default size.a. FlowLayoutb. BorderLayoutc. FixedLayoutd. RegionLayout
You set up the card game Concentration by placing pairs of cards face down in a grid. The player turns up two cards at a time, exposing their values. If the cards match, they are removed from the grid. If the cards do not match, they are turned back over so their values are hidden again, and the
Create a JFrame with JPanels, a JButton, and a JLabel. When the user clicks the JButton, reposition the JLabel to a new location in a different JPanel. Save the file as JMovingFrame.java.
You can use the ___________ class to arrange components in a single row or column of a container.a. FlowLayoutb. BorderLayoutc. CardLayoutd. BoxLayout
Create a target practice game that allows the user to click moving targets and displays the number of hits in a 10-second period. (In Chapter 4, you learned how to use the LocalDateTime class to measure elapsed time.) Create a grid of at least 100 JPanels. Randomly display an X on five panels to
Create a JFrame that uses BorderLayout. Place a JButton in the center region. Each time the user clicks the JButton, change the background color in one of the other regions. Save the file as JColorFrame.java.
The game Corner the King is played on a checkerboard. To begin, a checker is randomly placed in the bottom row. The player can move one or two squares to the left or upwards, and then the computer can move one or two squares left or up. The first to reach the upper-left corner wins. Design a game
Create a JFrame that holds five buttons with the names of five different fonts. Include a sixth button that the user can click to make a font larger or smaller. Display a demonstration JLabel using the font and size that the user selects. Save the file as JFontSelector.java.
You created an interactive GUI application for Sammy’s Seashore Rentals that allows the user to enter a rental time in hours, an equipment type, and a lesson option. Then, the application displays the cost of the rental and rental details. Now, modify the interface to include separate panels for
a. Create a game that helps new mouse users improve their hand-eye coordination. Within a JFrame, display an array of 48 JPanels in a GridLayout using eight rows and six columns. Randomly display an X on one of the panels. When the user clicks the correct panel (the one displaying the X), remove
Create an educational program for children that distinguishes between vowels and consonants as the user clicks buttons. Create 26 JButtons, each labeled with a different letter of the alphabet. Create a JFrame to hold three JPanels in a two-by-two grid. Randomly select eight of the 26 JButtons and
You created an interactive GUI application for Carly’s Catering that allows the user to enter a number of guests for an event and to choose an entrée, two side dishes, and a dessert from groups of choices. Then, the application displays the cost of the event and a list of the chosen items. Now,
a. Create aMine Field game in which the user attempts to click 10 panels of a grid before hitting the “bomb.” Set up a JFrame using BorderLayout, use the NORTH region for a congratulatory message, and use the CENTER region for the game. In the CENTER region, create a four-by-five grid using
Create a JFrame and set the layout to BorderLayout. In each region, place a JButton that displays the name of a classic movie that has the region name in its title. For example, the east button might indicate the movie East of Eden.When the user clicks the button, display the year of the movie’s
__________ are popup windows that appear when a user hovers the mouse pointer over a component.a. Navigation notesb. Tool tipsc. Help iconsd. Graphic suggestions
Design an application for a pizzeria. The user makes pizza order choices from list boxes, and the application displays the price. The user can choose a pizza size of small ($7), medium ($9), large ($11), or extra large ($14), and one of any number of toppings. There is no additional charge for
Create an application that accepts employee data interactively. Users might make any of the following errors as they enter data:The employee number is not numeric, less than 1000, or more than 9999.The hourly pay rate is not numeric, less than $9.00, or more than $25.00.Create a class that stores
Create a UsedCarException class that extends Exception; its constructor receives a value for a vehicle identification number (VIN) that is passed to the parent constructor so it can be used in a getMessage() call. Save the class as UsedCarException.java. Create a UsedCar class with fields for VIN,
Create an ApartmentException class whose constructor receives a String that holds a street address, an apartment number, a number of bedrooms, and a rent value for an apartment. Save the file as ApartmentException.java. Create an Apartment class with those fields. The Apartment constructor requires
You wrote an application named DistanceFromAverage that allows a user to enter up to 20 double values and then displays each entered value and its distance fromthe average. Now,modify that programto first prompt the user to enter a number that represents the array size. Java generates a
Write an application named BadSubscriptCaught in which you declare an array of 10 first names. Write a try block in which you prompt the user for an integer and display the name in the requested position. Create a catch block that catches the\ potential ArrayIndexOutOfBoundsException thrown when
Create a Building class and two subclasses, House and School. The Building class contains fields for square footage and stories. The House class contains additional fields for number of bedrooms and baths. The School class contains additional fields for number of classrooms and grade level (for
The Cullerton Park District holds a mini-Olympics each summer. Create a class named Participant with fields for a name, age, and street address. Include a constructor that assigns parameter values to each field and a toString() method that returns a String containing all the values. Also include an
Which of the following choices is the best example of a parent class/child class relationship?a. Rose/Flowerb. Present/Giftc. Dog/Poodled. Sparrow/Bird
Create an ItemSold class for Francis Pet Supply. Fields include an invoice number, description, and price. Create get and set methods for each field. Create a subclass named PetSold that descends from ItemSold and includes three Boolean fields that indicate whether the pet has been vaccinated,

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Java Programming 8th Edition Joyce Farrell - Solutions

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