Starting out with Visual C# (4th Edition)
4th Edition
ISBN: 9780134382609
Author: Tony Gaddis
Publisher: PEARSON
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Textbook Question
Chapter 10, Problem 16MC
__________ allows a base class reference variable to reference a derived class object.
- a. Polymorphism
- b. Inheritance
- c. Generalization
- d. Specialization
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Add a timer in the following code.
public class GameGUI extends JPanel { private final Labyrinth labyrinth; private final Player player; private final Dragon dragon; private Timer timer; private long elapsedTime;
public GameGUI(Labyrinth labyrinth, Player player, Dragon dragon) { this.labyrinth = labyrinth; this.player = player; this.dragon = dragon; String playerName = JOptionPane.showInputDialog("Enter your name:"); player.setName(playerName); elapsedTime = 0; timer = new Timer(1000, e -> { elapsedTime++; repaint(); }); timer.start();
}
@Override protected void paintComponent(Graphics g) { super.paintComponent(g); int cellSize = Math.min(getWidth() / labyrinth.getSize(), getHeight() / labyrinth.getSize());}
Change the following code so that when player wins the game, the game continues by creating new GameGUI with the same player. However the player's starting position is same, everything else should be reseted.
public static void main(String[] args) { Labyrinth labyrinth = new Labyrinth(10); Player player = new Player(9, 0); Random rand = new Random(); Dragon dragon = new Dragon(rand.nextInt(10), 9); JFrame frame = new JFrame("Labyrinth Game"); GameGUI gui = new GameGUI(labyrinth, player, dragon);
frame.setLayout(new BorderLayout()); frame.setSize(600, 600); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.add(gui, BorderLayout.CENTER); frame.pack(); frame.setResizable(false); frame.setVisible(true); }
public class GameGUI extends JPanel { private final Labyrinth labyrinth; private final Player player; private final Dragon dragon; private Timer timer; private long…
Create a menu item which restarts the game. Also add a timer, which counts the elapsed time since the start of the game level.
When the restart is pressed, the restarted game should ask the player' name (in the GameGUI constructor) and set the score of player to 0 (player.setScore(0)), and the timer should restart again. And create a logic so that if the player loses his life (checkGame if the condition is false), then save this number together with his name into two variables. And display two buttons where one quits the game altogether (System.exit(0)) and the other restarts the game.
public class GameGUI extends JPanel { private final Labyrinth labyrinth; private final Player player; private final Dragon dragon;
private final ImageIcon playerIcon = new ImageIcon("data/images/player.png"); private final ImageIcon dragonIcon = new ImageIcon("data/images/dragon.png"); private final ImageIcon wallIcon = new ImageIcon("data/images/wall.png"); private final ImageIcon…
Chapter 10 Solutions
Starting out with Visual C# (4th Edition)
Ch. 10.1 - In this section, we discussed base classes and...Ch. 10.1 - Prob. 10.2CPCh. 10.1 - What does a derived class inherit from its base...Ch. 10.1 - Look at the following code, which is the first...Ch. 10.1 - Briefly summarize the constructor issues in...Ch. 10.2 - Look at the following class definitions: class...Ch. 10.2 - Does the is a relationship work in reverse? Why or...Ch. 10.3 - What is the purpose of an abstract class?Ch. 10.3 - If a class is abstract, what cannot be done with...Ch. 10.3 - If a class is derived from a base class that has...
Ch. 10.3 - What must be done with an abstract property before...Ch. 10.3 - How can you create an abstract read-only property?Ch. 10 - When one object is a specialized version of...Ch. 10 - In an inheritance relationship, the_______ is the...Ch. 10 - In an inheritance relationship, the___________ is...Ch. 10 - Base classes are sometimes called____________. a....Ch. 10 - Derived classes are sometimes called______________...Ch. 10 - The refers to the base class. a. friend keyword b....Ch. 10 - Prob. 7MCCh. 10 - When a derived class method has the same name as a...Ch. 10 - The declares that a derived class is allowed to...Ch. 10 - The declares that this method overrides a method...Ch. 10 - A class that is not intended to be instantiated,...Ch. 10 - To declare a class as abstract, you use the...Ch. 10 - A regular, nonabstract class is sometimes called a...Ch. 10 - A(n) __________ is a method that appears in a base...Ch. 10 - A(n) __________ is a property that appears in a...Ch. 10 - __________ allows a base class reference variable...Ch. 10 - The base class inherits fields, properties, and...Ch. 10 - Polymorphism allows a class variable of the base...Ch. 10 - Properties in a base class cannot be overridden in...Ch. 10 - A base class reference variable can reference an...Ch. 10 - A statement that tries to use the new operator to...Ch. 10 - A class that is not intended to be instantiated,...Ch. 10 - When an abstract property appears in a class, it...Ch. 10 - What does a derived class inherit from its base...Ch. 10 - Look at the following code, which is the first...Ch. 10 - Can methods in the derived class directly access...Ch. 10 - When you create an instance of a derived class,...Ch. 10 - In what kind of situation would you want to use an...Ch. 10 - What is primary difference between an abstract...Ch. 10 - Can abstract classes also contain abstract...Ch. 10 - Write the first line of the definition for a...Ch. 10 - Look at the following class declarations: class...Ch. 10 - Write a parameterized constructor for a base class...Ch. 10 - Prob. 4AWCh. 10 - Create an abstract class called Star. Include an...Ch. 10 - Employee and ProductionWorker Classes Create an...Ch. 10 - ShiftSupervisor Class In a particular factory, a...Ch. 10 - TeamLeader Class In a particular factory, a team...Ch. 10 - Person and Customer Classes Design a class named...Ch. 10 - PreferredCustomer Class A retail store has a...
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- Please original work Analyze the complexity issues of processing big data What are five complexities and talk about the reasons they make the implementation complex. Please cite in text references and add weblinksarrow_forwardCreate a Database in JAVA Netbeans that saves name of the player and how many labyrinths did the player solve. Record the number of how many labyrinths did the player solve, and if he loses his life, then save this number together with his name into the database. Create a menu item, which displays a highscore table of the players for the 10 best scores public class GameGUI extends JPanel { private final Labyrinth labyrinth; private final Player player; private final Dragon dragon; private void checkGameState() { if (player.getX() == 0 && player.getY() == labyrinth.getSize() - 1) { JOptionPane.showMessageDialog(this, "You escaped! Congratulations!"); System.exit(0); } if (Math.abs(player.getX() - dragon.getX()) <= 1 && Math.abs(player.getY() - dragon.getY()) <= 1) { JOptionPane.showMessageDialog(this, "The dragon caught you! Game Over."); System.exit(0); } } } public…arrow_forwardCreate a Database in JAVA OOP that saves name of the player and how many labyrinths did the player solve. Record the number of how many labyrinths did the player solve, and if he loses his life, then save this number together with his name into the database. Create a menu item, which displays a highscore table of the players for the 10 best scores. Also, create a menu item which restarts the game. public class GameGUI extends JPanel { private final Labyrinth labyrinth; private final Player player; private final Dragon dragon; private void checkGameState() { if (player.getX() == 0 && player.getY() == labyrinth.getSize() - 1) { JOptionPane.showMessageDialog(this, "You escaped! Congratulations!"); System.exit(0); } if (Math.abs(player.getX() - dragon.getX()) <= 1 && Math.abs(player.getY() - dragon.getY()) <= 1) { JOptionPane.showMessageDialog(this, "The dragon caught you! Game Over.");…arrow_forward
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