EBK STARTING OUT WITH PROGRAMMING LOGIC
5th Edition
ISBN: 8220106960493
Author: GADDIS
Publisher: PEARSON
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Expert Solution & Answer
Chapter 4.1, Problem 4.4CP
Explanation of Solution
Boolean expression:
- The Boolean expression is a logical statement which returns either “True” or “False” with the help of “if” statement.
- The relational operators are used to form the Boolean expression that is tested by an “if” statement.
- Some of the relational operators used in Boolean expression are “>” “<”, “==”, and so on.
Example:
The following
#Assign a value to the variable
x = 120
#Check if the number is greater than 100
#Boolean expression
if x > 100:
#Assign 20 to the variable "...
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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");…
Chapter 4 Solutions
EBK STARTING OUT WITH PROGRAMMING LOGIC
Ch. 4.1 - What is a control structure?Ch. 4.1 - What is a decision structure?Ch. 4.1 - Prob. 4.3CPCh. 4.1 - Prob. 4.4CPCh. 4.1 - What types of relationships between values can you...Ch. 4.1 - Write a pseudocode If-Then statement that assigns...Ch. 4.1 - Write a pseudocode If-Then statement that assigns...Ch. 4.2 - Prob. 4.8CPCh. 4.2 - What statement do you use in pseudocode to write a...Ch. 4.2 - When you write an If-Then-Else statement, under...
Ch. 4.3 - If the following pseudocode were an actual...Ch. 4.3 - If the following pseudocode were an actual...Ch. 4.4 - Prob. 4.13CPCh. 4.4 - What statement do you use in pseudocode to write a...Ch. 4.4 - When you write an If-Then-Else statement, under...Ch. 4.4 - Convert the following pseudocode to an...Ch. 4.5 - Prob. 4.17CPCh. 4.5 - How do you write a multiple alternative decision...Ch. 4.5 - What does the case structure test, in order to...Ch. 4.5 - You need to write a multiple alternative decision...Ch. 4.6 - Prob. 4.21CPCh. 4.6 - Prob. 4.22CPCh. 4.6 - Assume the variables a = 2, b = 4, and c = 6....Ch. 4.6 - Explain how short-circuit evaluation works with...Ch. 4.6 - Prob. 4.25CPCh. 4.6 - Write an If-Then statement that displays the...Ch. 4.7 - Prob. 4.27CPCh. 4.7 - What is a flag variable?Ch. 4 - A __ structure can execute a set of statements...Ch. 4 - A __ structure provides one alternative path of...Ch. 4 - In pseudocode, the If-Then statement is an example...Ch. 4 - A(n) __ expression has a value of either true or...Ch. 4 - The symbols,, and== are all __ operators. a....Ch. 4 - A(n) __ structure tests a condition and then takes...Ch. 4 - You use a(n) __ statement in pseudocode to write a...Ch. 4 - You use a(n) _________ statement in pseudocode to...Ch. 4 - A ______ structure allows you to test the value of...Ch. 4 - Prob. 10MCCh. 4 - AND, OR, and NOT are _____ operators. a....Ch. 4 - A compound Boolean expression created with the...Ch. 4 - A compound Boolean expression created with the...Ch. 4 - The ____ operator takes a Boolean expression as...Ch. 4 - A ________ is a Boolean variable that signals when...Ch. 4 - Prob. 1TFCh. 4 - A program can be made of only one type of control...Ch. 4 - A single alternative decision structure tests a...Ch. 4 - A decision structure can be nested inside another...Ch. 4 - A compound Boolean expression created with the AND...Ch. 4 - Explain what is meant by the term conditionally...Ch. 4 - You need to test a condition and then execute one...Ch. 4 - If you need to test the value of a variable and...Ch. 4 - Briefly describe how the AND operator works.Ch. 4 - Briefly describe how the OR operator works.Ch. 4 - Prob. 6SACh. 4 - What is a flag and how does it work?Ch. 4 - Design an If-Then statement (or a flowchart with a...Ch. 4 - Design an If- Then statement (or a flowchart with...Ch. 4 - Design an If- Then-Else statement (or a flowchart...Ch. 4 - The following pseudocode contains several nested...Ch. 4 - Design nested decision structures that perform the...Ch. 4 - Rewrite the following If-Then-Else If statement as...Ch. 4 - Design an If-Then-Else statement (or a flowchart...Ch. 4 - Design an If-Then-Else statement (or a flowchart...Ch. 4 - Design a case structure that tests the month...Ch. 4 - Write an If-Then statement that sets the variable...Ch. 4 - Part of the following pseudocode is incompatible...Ch. 4 - Prob. 2DECh. 4 - Prob. 3DECh. 4 - Roman Numerals Design a program that prompts the...Ch. 4 - Areas of Rectangles The area of a rectangle is the...Ch. 4 - Mass and Weight Scientists measure an objects mass...Ch. 4 - Magic Dates The date June 10, 1960, is special...Ch. 4 - Color Mixer The colors red, blue, and yellow are...Ch. 4 - Book Club Points Serendipity Booksellers has a...Ch. 4 - Software Sales A software company sells a package...Ch. 4 - Change for a Dollar Game Design a change-counting...Ch. 4 - Shipping Charges The Fast Freight Shipping Company...Ch. 4 - Body Mass Index Program Enhancement In Programming...Ch. 4 - Time Calculator Design a program that asks the...Ch. 4 - Leap Year Detector Design a program that asks the...
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