Java: An Introduction to Problem Solving and Programming (8th Edition)
8th Edition
ISBN: 9780134462035
Author: Walter Savitch
Publisher: PEARSON
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Textbook Question
Chapter 2, Problem 5E
What changes to the ChangeMaker
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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 2 Solutions
Java: An Introduction to Problem Solving and Programming (8th Edition)
Ch. 2.1 - Prob. 1STQCh. 2.1 - Can a Java program have two different variables...Ch. 2.1 - Prob. 3STQCh. 2.1 - Give the declaration for two variables of type...Ch. 2.1 - Write the declaration for two variables called...Ch. 2.1 - What is the normal spelling convention for named...Ch. 2.1 - Prob. 7STQCh. 2.1 - Prob. 8STQCh. 2.1 - Prob. 9STQCh. 2.1 - Prob. 10STQ
Ch. 2.1 - Prob. 11STQCh. 2.1 - In the Programming Tip entitled Type Casting a...Ch. 2.1 - What is the output produced by the following lines...Ch. 2.1 - What is the output produced by the following lines...Ch. 2.1 - Prob. 15STQCh. 2.1 - Prob. 16STQCh. 2.1 - Consider the following statement from the program...Ch. 2.1 - Prob. 18STQCh. 2.2 - Prob. 19STQCh. 2.2 - What output is produced by the following...Ch. 2.2 - What output is produced by the following...Ch. 2.2 - What output is produced by the following...Ch. 2.2 - What output is produced by the following...Ch. 2.2 - What output is produced by the following...Ch. 2.2 - What is the value of the expression sl.equals(s2)...Ch. 2.2 - What is the value of the expression s1.equals (s2)...Ch. 2.3 - Write Java statements that will cause the...Ch. 2.3 - What is the difference between the methods...Ch. 2.3 - Write a complete Java program that reads a line of...Ch. 2.3 - Write a complete Java program that reads one line...Ch. 2.3 - What output is produced by the following...Ch. 2.4 - Prob. 32STQCh. 2.4 - What is the output produced by the following Java...Ch. 2.4 - Although it is kind of silly, state legislatures...Ch. 2.5 - Prob. 35STQCh. 2.5 - Give a Java statement that will display a dialog...Ch. 2.5 - Give a Java statement that, when executed, will...Ch. 2.5 - Prob. 38STQCh. 2.5 - Write a complete Java program that produces a...Ch. 2.5 - Write a complete Java program that behaves as...Ch. 2 - Write a program that demonstrates the approximate...Ch. 2 - Write a program that demonstrates type casting of...Ch. 2 - Write a program that demonstrates the operator %...Ch. 2 - If u = 2, v = 3, w = 5, x = 7, and y = 11, what is...Ch. 2 - What changes to the ChangeMaker program in Listing...Ch. 2 - If the int variable x contains 10, what will the...Ch. 2 - Write some Java statements that use the String...Ch. 2 - Prob. 8ECh. 2 - Prob. 9ECh. 2 - Write a single Java statement that will display...Ch. 2 - What does the Java code Scanner keyboard = new...Ch. 2 - What does the Java code Scanner keyboard = new...Ch. 2 - Prob. 13ECh. 2 - Many sports have constants embedded in their...Ch. 2 - Prob. 15ECh. 2 - Define named constants that you could use in...Ch. 2 - Write a program that reads three whole numbers and...Ch. 2 - Write a program that uses Scanner to read two...Ch. 2 - Write a program that reads the amount of a monthly...Ch. 2 - Write a program that reads a four-digit integer,...Ch. 2 - Prob. 5PCh. 2 - Prob. 6PCh. 2 - Write a program that converts degrees from...Ch. 2 - Write a program that reads a line of text and then...Ch. 2 - Write a program that will read a line of text as...Ch. 2 - Write a program that asks the user to enter a...Ch. 2 - Write a program that determines the change to be...Ch. 2 - Write a program that reads a 4-bit binary number...Ch. 2 - Prob. 7PPCh. 2 - The Harris-Benedict equation estimates the number...Ch. 2 - Repeat any of the previous programming projects...Ch. 2 - Write a program that reads a string for a date in...Ch. 2 - It is important to consider the effect of thermal...
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