Starting Out with Programming Logic and Design (4th Edition)
4th Edition
ISBN: 9780133985078
Author: Tony Gaddis
Publisher: PEARSON
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Textbook Question
Chapter 2, Problem 3PE
Land Calculation
One acre of land is equivalent to 43,560 square feet. Design a
Hint: Divide the amount entered by 43,560 to get the number of acres.
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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
Starting Out with Programming Logic and Design (4th Edition)
Ch. 2.1 - Who is a programmers customer?Ch. 2.1 - What is a software requirement?Ch. 2.1 - What is an algorithm?Ch. 2.1 - What is pseudocode?Ch. 2.1 - Prob. 2.5CPCh. 2.1 - Prob. 2.6CPCh. 2.2 - Prob. 2.7CPCh. 2.2 - Prob. 2.8CPCh. 2.2 - What is a sequence structure?Ch. 2.2 - Prob. 2.10CP
Ch. 2.2 - Prob. 2.11CPCh. 2.2 - Prob. 2.12CPCh. 2.2 - Summarize three common rules for naming variables.Ch. 2.2 - Prob. 2.14CPCh. 2.2 - Look at the following pseudocode statement: Input...Ch. 2.2 - Prob. 2.16CPCh. 2.2 - Prob. 2.17CPCh. 2.2 - What two steps usually take place when a program...Ch. 2.2 - What does the term user-friendly mean?Ch. 2.3 - Prob. 2.20CPCh. 2.3 - When you assign a value to a variable, what...Ch. 2.3 - Summarize the mathematical order of operations, as...Ch. 2.3 - Prob. 2.23CPCh. 2.3 - Prob. 2.24CPCh. 2.4 - What two items do you usually specify with a...Ch. 2.4 - Does it matter where you write the variable...Ch. 2.4 - What is variable initialization?Ch. 2.4 - Prob. 2.28CPCh. 2.4 - What is an uninitialized variable?Ch. 2.7 - Prob. 2.30CPCh. 2.7 - Prob. 2.31CPCh. 2.7 - Prob. 2.32CPCh. 2 - A error does not prevent the program from running,...Ch. 2 - Prob. 2MCCh. 2 - A(n) _______ is a set of well-defined logical...Ch. 2 - An informal language that has no syntax rules, and...Ch. 2 - A ____ is a diagram that graphically depicts the...Ch. 2 - Prob. 6MCCh. 2 - Prob. 7MCCh. 2 - Prob. 8MCCh. 2 - Prob. 9MCCh. 2 - A(n) _____ is a message that tells (or asks) the...Ch. 2 - A(n) ________ sets a variable to a specified...Ch. 2 - In the expression 12 + 7, the values on the right...Ch. 2 - A(n) _____ operator raises a number to a power. a....Ch. 2 - A(n) _________ operator performs division, but...Ch. 2 - A(n) ____ specifies a variable's name and data...Ch. 2 - Assigning a value to a variable in a declaration...Ch. 2 - Prob. 17MCCh. 2 - Prob. 18MCCh. 2 - A debugging process in which you imagine that you...Ch. 2 - Prob. 20MCCh. 2 - Programmers must be careful not to make syntax...Ch. 2 - In a math expression, multiplication and division...Ch. 2 - Variable names can have spaces in them.Ch. 2 - In most languages, the first character of a...Ch. 2 - Prob. 5TFCh. 2 - In languages that require variable declarations, a...Ch. 2 - Uninitialized variables are a common cause of...Ch. 2 - The value of a named constant cannot be changed...Ch. 2 - Hand tracing is the process of translating a...Ch. 2 - Prob. 10TFCh. 2 - What does a professional programmer usually do...Ch. 2 - What is pseudocode?Ch. 2 - Computer programs typically perform what three...Ch. 2 - What does the term user-friendly mean?Ch. 2 - What two things must you normally specify in a...Ch. 2 - What value is stored in uninitialized variables?Ch. 2 - Design an algorithm that prompts the user to enter...Ch. 2 - Design an algorithm that prompts the user to enter...Ch. 2 - Write assignment statements that perform the...Ch. 2 - Assume the variables result, x, y, and z are all...Ch. 2 - Write a pseudocode statement that declares the...Ch. 2 - Write a pseudocode statement that declares the...Ch. 2 - Write a pseudocode statement that assigns the...Ch. 2 - Write a pseudocode statement that assigns the sum...Ch. 2 - Write a pseudocode statement that subtracts the...Ch. 2 - Write a pseudocode statement that multiplies the...Ch. 2 - If the following pseudocode were an actual...Ch. 2 - Prob. 12AWCh. 2 - If the following pseudocode were an actual...Ch. 2 - If the programmer translates the following...Ch. 2 - The following code will not display the results...Ch. 2 - Find the error in the following pseudocode....Ch. 2 - Find the error in the following pseudocode....Ch. 2 - Find the error in the following pseudocode....Ch. 2 - Find the error in the following pseudocode....Ch. 2 - Personal Information Design a program that...Ch. 2 - Sales Prediction A company has determined that its...Ch. 2 - Land Calculation One acre of land is equivalent to...Ch. 2 - Total Purchase A customer in a store is purchasing...Ch. 2 - Distance Traveled Assuming there are no accidents...Ch. 2 - Sales Tax Design a program that will ask the user...Ch. 2 - Miles-per-Gallon A cars miles-per-gallon (MPG) can...Ch. 2 - Tip, Tax, and Total Design a program that...Ch. 2 - Celsius to Fahrenheit Temperature Converter Design...Ch. 2 - Stock Transaction Program Last month Joe purchased...Ch. 2 - Cookie Calories A bag of cookies holds 40 cookies....Ch. 2 - Male and Female Percentages Design a program that...Ch. 2 - Ingredient Adjuster A cookie recipe calls for the...
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