Starting Out with Java: From Control Structures through Objects (7th Edition) (What's New in Computer Science)
7th Edition
ISBN: 9780134802213
Author: Tony Gaddis
Publisher: PEARSON
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Textbook Question
Chapter 1, Problem 8MC
These characters serve specific purposes, such as marking the beginning or ending of a statement, or separating items in a list.
- a. punctuation
- b. programmer-defined names
- c. key words
- d. operators
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Change the following code so that there is always at least one way to get from the left corner to the top right, but the labyrinth is still randomized.
The player starts at the bottom left corner of the labyrinth. He has to get to the top right corner of the labyrinth as fast he can, avoiding a meeting with the evil dragon. Take care that the player and the dragon cannot start off on walls. Also the dragon starts off from a randomly chosen position
public class Labyrinth { private final int size; private final Cell[][] grid;
public Labyrinth(int size) { this.size = size; this.grid = new Cell[size][size]; generateLabyrinth(); }
private void generateLabyrinth() { Random rand = new Random(); for (int i = 0; i < size; i++) { for (int j = 0; j < size; j++) { // Randomly create walls and paths grid[i][j] = new Cell(rand.nextBoolean()); } } // Ensure start and end are…
Change the following code so that it checks the following 3 conditions:
1. there is no space between each cells (imgs)
2. even if it is resized, the components wouldn't disappear
3. The GameGUI JPanel takes all the JFrame space, so that there shouldn't be extra space appearing in the frame other than the game.
Main():
Labyrinth labyrinth = new Labyrinth(10);
Player player = new Player(9, 0); Dragon dragon = new Dragon(9, 9);
JFrame frame = new JFrame("Labyrinth Game"); GameGUI gui = new GameGUI(labyrinth, player, dragon);
frame.add(gui); frame.setSize(600, 600); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.setVisible(true);
public class GameGUI extends JPanel { private final Labyrinth labyrinth; private final Player player; private final Dragon dragon; //labyrinth, player, dragon are just public classes
private final ImageIcon playerIcon = new ImageIcon("data/images/player.png");…
Make the following game user friendly with GUI, with some simple graphics. The GUI should be in another seperate class, with some ImageIcon, and Game class should be added into the pane.
The following code works as this: The objective of the player is to escape from this labyrinth. The player starts at the bottom left corner of the labyrinth. He has to get to the top right corner of the labyrinth as fast he can, avoiding a meeting with the evil dragon. The player can move only in four directions: left, right, up or down. There are several escape paths in all labyrinths. The player’s character should be able to moved with the well known WASD keyboard buttons. If the dragon gets to a neighboring field of the player, then the player dies. Because it is dark in the labyrinth, the player can see only the neighboring fields at a distance of 3 units.
Cell Class:
public class Cell { private boolean isWall; public Cell(boolean isWall) { this.isWall = isWall; } public boolean isWall() { return…
Chapter 1 Solutions
Starting Out with Java: From Control Structures through Objects (7th Edition) (What's New in Computer Science)
Ch. 1.3 - Why is the computer used by so many different...Ch. 1.3 - List the five major hardware components of a...Ch. 1.3 - Internally, the CPU consists of what two units?Ch. 1.3 - Prob. 1.4CPCh. 1.3 - Prob. 1.5CPCh. 1.3 - Prob. 1.6CPCh. 1.3 - What does the term multitasking mean?Ch. 1.5 - Describe the difference between a key word and a...Ch. 1.5 - Prob. 1.9CPCh. 1.5 - Describe the difference between a program line and...
Ch. 1.5 - Prob. 1.11CPCh. 1.5 - What happens to a variables current contents when...Ch. 1.5 - What is a compiler?Ch. 1.5 - Prob. 1.14CPCh. 1.5 - What is byte code?Ch. 1.5 - Prob. 1.16CPCh. 1.6 - What four items should you identify when defining...Ch. 1.6 - Prob. 1.18CPCh. 1.6 - What is pseudocode?Ch. 1.6 - Describe what a compiler does with a programs...Ch. 1.6 - Prob. 1.21CPCh. 1.6 - Is a syntax error (such as misspelling a key word)...Ch. 1.6 - What is the purpose of testing a program with...Ch. 1.7 - Prob. 1.24CPCh. 1.7 - Prob. 1.25CPCh. 1.7 - Prob. 1.26CPCh. 1.7 - Prob. 1.27CPCh. 1.7 - Prob. 1.28CPCh. 1 - Prob. 1MCCh. 1 - A byte is made up of eight a. CPUs b. addresses c....Ch. 1 - Each byte is assigned a unique a. address b. CPU...Ch. 1 - Prob. 4MCCh. 1 - Prob. 5MCCh. 1 - These are words that have a special meaning in the...Ch. 1 - These are symbols or words that perform operations...Ch. 1 - These characters serve specific purposes, such as...Ch. 1 - These are words or names that are used to identify...Ch. 1 - Prob. 10MCCh. 1 - Prob. 11MCCh. 1 - Prob. 12MCCh. 1 - Prob. 13MCCh. 1 - The following pseudocode algorithm has an error....Ch. 1 - Available Credit A program that calculates a...Ch. 1 - Sales Tax A program that calculates the total of a...Ch. 1 - Account Balance A program that calculates the...Ch. 1 - The variable x starts with the value 0. The...Ch. 1 - The variable a starts with the value 10. The...Ch. 1 - Prob. 1SACh. 1 - Prob. 2SACh. 1 - What is the difference between operating system...Ch. 1 - Why must programs written in a high-level language...Ch. 1 - Why is it easier to write a program in a...Ch. 1 - What is a source file?Ch. 1 - Prob. 7SACh. 1 - What is an algorithm?Ch. 1 - What is a compiler?Ch. 1 - What must a computer have in order for it to...Ch. 1 - What is the difference between machine language...Ch. 1 - Why does byte code make Java a portable language?Ch. 1 - Prob. 13SACh. 1 - Prob. 14SACh. 1 - What part of an object forms an interface through...Ch. 1 - What type of program do you use to write Java...Ch. 1 - Will the Java compiler translate a source file...Ch. 1 - What does the Java compiler translate Java source...Ch. 1 - Prob. 19SACh. 1 - Prob. 20SACh. 1 - Your First Java Program This assignment will help...
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