Principles of Information Systems (MindTap Course List)
12th Edition
ISBN: 9781285867168
Author: Ralph Stair, George Reynolds
Publisher: Cengage Learning
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Chapter 5, Problem 3RQ
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Primary key:
- In relational databases, a primary key is a key that is used for identifying and defining the characteristics uniquely of each row.
- A primary key may have a single attribute or a multiple attributes.
- Let us consider the “Student” table that consists of “Student_No”, “F_Name”, “L_Name”, and “Course_ID” as attributes...
Explanation of Solution
Identifying primary key in airline reservation systems:
Field named “flight ID” and “Seat ID” could be assigned as ...
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Clustering by k-means, with preprocessing tokenization, term weighting TFIDF.
Manhattan Distance. Number of cluster is 2. Centroid docID 2 and docID 9.
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 5 Solutions
Principles of Information Systems (MindTap Course List)
Ch. 5.6 - Prob. 1DQCh. 5.6 - Prob. 2DQCh. 5.6 - Prob. 1CTQCh. 5.6 - Prob. 2CTQCh. 5.7 - Prob. 1DQCh. 5.7 - Prob. 2DQCh. 5.7 - Prob. 1CTQCh. 5.7 - Prob. 2CTQCh. 5 - Prob. 1SATCh. 5 - Prob. 2SAT
Ch. 5 - Prob. 3SATCh. 5 - Prob. 4SATCh. 5 - Prob. 5SATCh. 5 - Prob. 6SATCh. 5 - Prob. 7SATCh. 5 - Prob. 8SATCh. 5 - ______ is a special-purpose programming language...Ch. 5 - Prob. 10SATCh. 5 - Prob. 11SATCh. 5 - Prob. 12SATCh. 5 - Prob. 13SATCh. 5 - Prob. 14SATCh. 5 - An in-memory database (IMDB) is a database...Ch. 5 - Prob. 16SATCh. 5 - Prob. 17SATCh. 5 - Prob. 18SATCh. 5 - Prob. 19SATCh. 5 - Prob. 20SATCh. 5 - Prob. 1RQCh. 5 - What is the difference between a data attribute...Ch. 5 - Prob. 3RQCh. 5 - Prob. 4RQCh. 5 - Prob. 5RQCh. 5 - Prob. 6RQCh. 5 - Prob. 7RQCh. 5 - Prob. 8RQCh. 5 - Prob. 9RQCh. 5 - Prob. 10RQCh. 5 - Prob. 11RQCh. 5 - Prob. 12RQCh. 5 - Prob. 13RQCh. 5 - Prob. 14RQCh. 5 - Prob. 15RQCh. 5 - Prob. 16RQCh. 5 - Prob. 17RQCh. 5 - Prob. 18RQCh. 5 - What is data mining? What is OLAP? How are they...Ch. 5 - Prob. 20RQCh. 5 - Prob. 21RQCh. 5 - Prob. 1DQCh. 5 - Outline some specific steps an organization might...Ch. 5 - Briefly describe the ACID properties to which an...Ch. 5 - Prob. 4DQCh. 5 - Prob. 5DQCh. 5 - Prob. 6DQCh. 5 - Prob. 7DQCh. 5 - Prob. 8DQCh. 5 - Prob. 9DQCh. 5 - Prob. 10DQCh. 5 - Prob. 11DQCh. 5 - Prob. 12DQCh. 5 - Prob. 13DQCh. 5 - Prob. 1PSECh. 5 - An online video movie rental store is using a...Ch. 5 - Using a graphics program, develop an...Ch. 5 - Prob. 1WECh. 5 - Prob. 1CECh. 5 - Prob. 2CECh. 5 - Prob. 1DQ1Ch. 5 - Prob. 2DQ1Ch. 5 - Prob. 1CTQ1Ch. 5 - Prob. 2CTQ1Ch. 5 - Prob. 1DQ2Ch. 5 - Prob. 2DQ2Ch. 5 - Prob. 1CTQ2Ch. 5 - Prob. 2CTQ2Ch. 5 - Prob. 1DQ3Ch. 5 - Prob. 2DQ3Ch. 5 - Prob. 1CTQ3Ch. 5 - Prob. 2CTQ3
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- 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…arrow_forwardDiscuss the negative and positive impacts or information technology in the context of your society. Provide two references along with with your answerarrow_forwardA cylinder of diameter 10 cm rotates concentrically inside another hollow cylinder of inner diameter 10.1 cm. Both cylinders are 20 cm long and stand with their axis vertical. The annular space is filled with oil. If a torque of 100 kg cm is required to rotate the inner cylinder at 100 rpm, determine the viscosity of oil. Ans. μ= 29.82poisearrow_forward
- Make the following game user friendly with GUI, with some simple graphics 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 isWall; } public void setWall(boolean isWall) { this.isWall = isWall; } @Override public String toString() {…arrow_forwardPlease original work What are four of the goals of information lifecycle management think they are most important to data warehousing, Why do you feel this way, how dashboards can be used in the process, and provide a real life example for each. Please cite in text references and add weblinksarrow_forwardThe following is code for a disc golf program written in C++: // player.h #ifndef PLAYER_H #define PLAYER_H #include <string> #include <iostream> class Player { private: std::string courses[20]; // Array of course names int scores[20]; // Array of scores int gameCount; // Number of games played public: Player(); // Constructor void CheckGame(int playerId, const std::string& courseName, int gameScore); void ReportPlayer(int playerId) const; }; #endif // PLAYER_H // player.cpp #include "player.h" #include <iomanip> Player::Player() : gameCount(0) {} void Player::CheckGame(int playerId, const std::string& courseName, int gameScore) { for (int i = 0; i < gameCount; ++i) { if (courses[i] == courseName) { // If course has been played, then check for minimum score if (gameScore < scores[i]) { scores[i] = gameScore; // Update to new minimum…arrow_forward
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