Starting out with Visual C# (4th Edition)
4th Edition
ISBN: 9780134382609
Author: Tony Gaddis
Publisher: PEARSON
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Textbook Question
Chapter 5.3, Problem 5.9CP
What messages will the following code sample display?
int number = 5;
number++;
MessageBox.Show(number.ToString());
number--;
MessageBox.Show(number.ToString());
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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);
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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 5 Solutions
Starting out with Visual C# (4th Edition)
Ch. 5.1 - Prob. 5.1CPCh. 5.1 - Prob. 5.2CPCh. 5.1 - Prob. 5.3CPCh. 5.2 - What is a loop iteration?Ch. 5.2 - What is a counter variable?Ch. 5.2 - What is a pretest loop?Ch. 5.2 - Does the while loop rest its condition before or...Ch. 5.2 - What is an infinite loop?Ch. 5.3 - What messages will the following code sample...Ch. 5.3 - How many rimes will the following loop iterate?...
Ch. 5.4 - Name the three expressions that appear inside the...Ch. 5.4 - You want to write a for loop that displays I love...Ch. 5.4 - What would the following code display? for (int...Ch. 5.4 - What would the following code display? for (int...Ch. 5.5 - What is a posttest loop?Ch. 5.5 - What is the difference between the while loop and...Ch. 5.5 - How many times will the following loop iterate?...Ch. 5.6 - What is an output file?Ch. 5.6 - What is an input file?Ch. 5.6 - What three steps must be taken by a program when...Ch. 5.6 - What is the difference between a text file and a...Ch. 5.6 - Prob. 5.22CPCh. 5.6 - What type of object do you create if you want to...Ch. 5.6 - What type of object do you create if you want to...Ch. 5.6 - If you call the File.CreateText method and the...Ch. 5.6 - If you call the File.AppendText method and the...Ch. 5.6 - What is the difference between the WriteLine and...Ch. 5.6 - What method do you call to open a text file to...Ch. 5.6 - What is a files read position? Initially, where is...Ch. 5.6 - How do you read a line of text from a text file?Ch. 5.6 - How do you close a file?Ch. 5.6 - Assume inputFile references a StreamReader object...Ch. 5.7 - What is the benefit of using an Open and/or Save...Ch. 5.7 - Prob. 5.34CPCh. 5.8 - What does a Random objects Next method return?Ch. 5.8 - What does a Random objects NextDouble method...Ch. 5.8 - Write code that creates a Random object and then...Ch. 5.8 - Write code that creates a Random object and then...Ch. 5.8 - Prob. 5.39CPCh. 5.8 - What happens if the same seed value is used each...Ch. 5.9 - Prob. 5.41CPCh. 5.9 - Prob. 5.42CPCh. 5 - ListBox controls have an __________ method that...Ch. 5 - A __________ is commonly used to control the...Ch. 5 - A(n) __________ loop tests its condition before...Ch. 5 - The term __________ is used to describe a file...Ch. 5 - The term __________ file is used to describe a...Ch. 5 - A __________ file contains data that has been...Ch. 5 - When you work with a __________ file you access...Ch. 5 - Prob. 8MCCh. 5 - A __________ object is an object that is...Ch. 5 - When a program works with an input file, a special...Ch. 5 - When the user selects a file with the Open dialog...Ch. 5 - The __________ control displays a standard Windows...Ch. 5 - Once you have created a Random object, you can...Ch. 5 - Prob. 14MCCh. 5 - When you run an application, the applications form...Ch. 5 - If the ListBox is empty, the Items.Count property...Ch. 5 - To increment a variable means to increase its...Ch. 5 - When a variable is declared in the initialization...Ch. 5 - The while loop always performs at least one...Ch. 5 - The term read file is used to describe a file that...Ch. 5 - To append data to an existing file, you open it...Ch. 5 - As items are read from the file, the read position...Ch. 5 - The numbers that are generated by the Random class...Ch. 5 - Prob. 10TFCh. 5 - What is contained in the body of a loop?Ch. 5 - Write a programming statement that uses postfix...Ch. 5 - How many iterations will occur if the test...Ch. 5 - What are filename extensions? What do they...Ch. 5 - When an input file is opened, what is its read...Ch. 5 - How can you read all of the items in a file...Ch. 5 - What is a variable that is used to accumulate a...Ch. 5 - By default, the Open dialog box displays the...Ch. 5 - Prob. 9SACh. 5 - Prob. 10SACh. 5 - Write a loop that displays your name 10 times.Ch. 5 - Write a loop that displays all the odd numbers...Ch. 5 - Write a loop that displays every fifth number from...Ch. 5 - Write a code sample that uses a loop to write the...Ch. 5 - Assume that a file named People.txt contains a...Ch. 5 - Distance Calculator If you know a vehicles speed...Ch. 5 - Distance File Modify the Distance Calculator...Ch. 5 - Celsius to Fahrenheit Table Assuming that C is a...Ch. 5 - Prob. 4PPCh. 5 - Pennies for Pay Susan is hired for a job, and her...Ch. 5 - Prob. 6PPCh. 5 - Prob. 7PPCh. 5 - Prob. 8PPCh. 5 - Prob. 9PPCh. 5 - Addition Tutor Create an application that...Ch. 5 - Random Number Guessing Game Create an application...Ch. 5 - Calculating the Factorial of a Number In...Ch. 5 - Random Number File Writer Create an application...Ch. 5 - Random Number File Reader This exercise assumes...
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