Starting Out with C++: Early Objects (9th Edition)
9th Edition
ISBN: 9780134400242
Author: Tony Gaddis, Judy Walters, Godfrey Muganda
Publisher: PEARSON
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Textbook Question
Chapter 3, Problem 22PC
Pizza Slices
Joe's Pizza Palace needs a
A) Ask the user for the diameter of the pizza in inches.
B) Divide the diameter by 2 to get the radius.
C) Calculate the number of slices that may be taken from a pizza of that size if each slice has an area of 14.125 square inches.
D) Display a message telling the number of slices.
The number of square inches in the total pizza can be calculated with this formula:
Area=
Where variable r is the radius of the pizza and
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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 3 Solutions
Starting Out with C++: Early Objects (9th Edition)
Ch. 3.1 - Prob. 3.1CPCh. 3.1 - What is the symbol called?Ch. 3.1 - Where does cin read its input from?Ch. 3.1 - Prob. 3.4CPCh. 3.1 - Assume value is an integer variable. If the user...Ch. 3.1 - A program has the following variable definitions....Ch. 3.1 - The following program will run, but the user will...Ch. 3.1 - Complete the following main function so that it...Ch. 3.2 - In each of the following cases, tell which...Ch. 3.2 - Complete the following table by writing the value...
Ch. 3.2 - Prob. 3.11CPCh. 3.2 - Study the following program code and then complete...Ch. 3.2 - Complete the following program skeleton so that it...Ch. 3.3 - Assume the following variable definitions: int a =...Ch. 3.3 - What will the following program code display if a...Ch. 3.3 - What will the following program code display? int...Ch. 3.5 - Prob. 3.17CPCh. 3.5 - Complete the following program code segment so...Ch. 3.6 - Write a multiple assignment statement that assigns...Ch. 3.6 - Write statements using combined assignment...Ch. 3.6 - What will the following program segment display?...Ch. 3.7 - Write cout statements with stream manipulators...Ch. 3.7 - The following program segment converts an angle in...Ch. 3.8 - Will the following string literal fit in the space...Ch. 3.8 - If a program contains the definition string name;...Ch. 3.8 - Prob. 3.26CPCh. 3.10 - Use a mathematical library function with a cout...Ch. 3.10 - Assume the variables angle1 and angle2 hold angles...Ch. 3.10 - To find the cube root (the third root) of a...Ch. 3.10 - Write a statement that produces a random number...Ch. 3 - Prob. 1RQECh. 3 - Prob. 2RQECh. 3 - Prob. 3RQECh. 3 - Assume the following variables are defined: int...Ch. 3 - What header files must be included in the...Ch. 3 - Prob. 6RQECh. 3 - Prob. 7RQECh. 3 - Complete the following table. Expression Value of...Ch. 3 - Write C++ expressions for the following algebraic...Ch. 3 - Assume a program has the following variable...Ch. 3 - Prob. 11RQECh. 3 - Assume that qty and salesReps are both integers....Ch. 3 - Rewrite the following variable definition so the...Ch. 3 - Complete the following table by writing statements...Ch. 3 - Write a multiple assignment statement that can be...Ch. 3 - Write a pair of multiple assignment statements...Ch. 3 - Replace the following statements with a single...Ch. 3 - Is the following code legal? Why or why not? const...Ch. 3 - Write a cout statement that uses stream...Ch. 3 - Write a cout statement that uses stream...Ch. 3 - What header file must be included A) to perform...Ch. 3 - Pet World offers a 15 percent discount to senior...Ch. 3 - A bowling alley is offering a prize to the bowler...Ch. 3 - A retail store grants its customers a maximum...Ch. 3 - Little Italy Pizza charges 14.95 for a 12-inch...Ch. 3 - Trace the following program segments and tell what...Ch. 3 - A) (Assume the user enters George Washington.)...Ch. 3 - Each of the following program segments has some...Ch. 3 - A) const int number1, number2, product; cout ...Ch. 3 - Soft Skills Often programmers work in teams with...Ch. 3 - Miles per Gallon Write a program that calculates a...Ch. 3 - Stadium Seating There are three searing categories...Ch. 3 - Housing Costs Write a program that asks the user...Ch. 3 - How Much Insurance? Many financial experts advise...Ch. 3 - Batting Average Write a program to find a baseball...Ch. 3 - Test Average Write a program that asks for five...Ch. 3 - Average Rainfall Write a program that calculates...Ch. 3 - Male and Female Percentages Write a program that...Ch. 3 - Vacation Days Write a program that prompts the...Ch. 3 - Box Office A movie theater only keeps 80 percent...Ch. 3 - How Many Widgets? The Yukon Widget Company...Ch. 3 - How many Calories? A bag of cookies holds 30...Ch. 3 - Ingredients Adjuster A cookie recipe calls for the...Ch. 3 - Celsius to Fahrenheit Write a program that...Ch. 3 - Currency Write a program that will convert U.S....Ch. 3 - Monthly Sales Tax A retail company muse file a...Ch. 3 - Property Tax Madison County collects property...Ch. 3 - Senior Citizen Property Tax Madison County...Ch. 3 - Math Tutor Write a program that can be used as a...Ch. 3 - Interest Earned Assuming there are no deposits...Ch. 3 - Monthly Payments The monthly payment on a loan may...Ch. 3 - Pizza Slices Joe's Pizza Palace needs a program to...Ch. 3 - How Many Pizzas? Modify the program you wrote in...Ch. 3 - Angle Calculator Write a program that asks the...Ch. 3 - Stock Transaction Program Last month Joe purchased...
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