Create two classes: Rectangle and Cuboid. Cuboid is a child class for rectangle Rectangle - length: double - width: double + Rectangle() +Rectangle(int length, int width) //Accessor and Mutator methods + calculateArea(): double +calculatePerimeter(): double

Create two classes: Rectangle and Cuboid. Cuboid is a child class for rectangle Rectangle - length: double - width: double + Rectangle() +Rectangle(int length, int width) //Accessor and Mutator methods + calculateArea(): double +calculatePerimeter(): double

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Given the Solid class, extend it with: Pyramid Cylinder RectangularPrism Sphere Make sure to create the constructor and override the volume and surfaceArea methods. Also extend RectangularPrism with Cube. HINT: You can look up formulas for how to compute the volume and surface area of a certain type of shape online. ========================================== public class SolidTester{public static void main(String[] args){String name;double volume;double surfaceArea; // Pyramid constructor should take name, length, width, height// in that orderPyramid pyramid = new Pyramid("My pyramid", 1, 3, 5);name = pyramid.getName();volume = round(pyramid.volume(), 2);surfaceArea = round(pyramid.surfaceArea(), 2);System.out.println("Pyramid '" + name + "' has volume: " + volume +" and surface area: " + surfaceArea + "."); // Sphere constructor should take name then radiusSphere sphere = new Sphere("My sphere", 4);name = sphere.getName();volume = round(sphere.volume(), 2);surfaceArea =…
Add the following constructor to your Rectangle class: public Rectangle(Point p, int width, int height) Construct a new Rectangle whose top-left corner is specified by the given Point and with the given width and height.
*Create a rectangle class using all methods given below.* *Use Java* Class Rectangle will have the following instance variables: •x –a double that represents the x coordinate of the lower left vertex of the rectangle •y –a double that represents the y coordinate of the lower left vertex of the rectangle •width –a double that represents the width of the rectangle •height–a double that represents the height of the rectangle •color –a String that represents the color of the rectangle •filled –a boolean variable that is true if the rectangle is filled, and false if it is not Rectangle constructor: The constructor should be: Rectangle (double x, double y, double height, double width, String color, boolean filled) Parameters are, in order,the x and y coordinates of the lower left corner, the height, the width, and the color of the rectangle. The constructor should check that these values represent a valid rectangle. If they do, then it should initialize the rectangle to these values.…
Answer the prompt with given main method: Code: import java.awt.*; public class TestRandomWalker { public static final int STEPS = 500; public static void main(String[] args) { RandomWalker walker = new RandomWalker(); // instantiate Walker object DrawingPanel panel = new DrawingPanel(500, 500); Graphics g = panel.getGraphics(); // advanced features -- center and zoom in the image panel.getGraphics().translate(250, 250); panel.getGraphics().scale(4, 4); // make the walker walk, and draw its movement int prevX = walker.getX(); // initialize Walker display int prevY = walker.getY(); for (int i = 1; i <= STEPS; i++) { g.setColor(Color.BLACK); g.drawLine(prevX, prevY, walker.getX(), walker.getY()); // update Walker display walker.move();…
This is for pygame Ball Class: The Ball class inherits from Drawable and it will draw a circle at its current location. You must implement at the very least the required methods of the base class (draw and get_rect), as well as a constructor. You may need to implement other methods as part of the public interface. This is the Drawable Class
Write a class that represents a player in a game. The player should have a name, password,experience points, an inventory array of four strings, and a location x,y. Your class shouldhave mutator and accessor methods for all variables. For example: setName(), getName(). Itshould have a suitable display method. Mutators and accessors should be public but allvariables should be private. To implement get inventory, use string * getInv(); Use the scoperesolution operator to implement larger methods such as display(). Use in class methods forshorter methods such as setName(), getName(). (in C++)Example:void setName(string name){this->name = name;}string *getInv();...string* player::getInv(){return inventory;}Note that in the above method setName “this->” is required for disambiguation. If writtenvoid setName(string n){name = n;}“this->” is not required.Write a test program that creates three players and displays them.Example Output:This program generates three player objects and…
A FastCritter moves twice as fast as a regular critter. When asked to move by n steps, it actually moves by 2 * n steps. Implement a FastCritter subclass of Critter whose move method behaves as described. What do I need to change to make it work? import java.util.ArrayList; /** A simulated critter.*/public class Critter //superclass{ private int position; private ArrayList<String> history; /** Constructs a critter at position 0 with blank history. */ public Critter() { position = 0; history = new ArrayList<String>(); } /** Gets the history of this critter. @return the history */ public ArrayList<String> getHistory() { return history; } /** Adds to the history of this critter. @param newValue the desired state */ public void addHistory(String event) { history.add(event); } /** Gets the position of this critter. @return the position */ public int getPosition() {…
class Point: """ A point in a two-dimensional coordinate plane """ def __init__(self, x, y): """ Create a point with an x and y coordinate """ self.x = x self.y = y def __str__(self): """ Generate a string representation of a point """ return("(" + str(self.x) + "," + str(self.y) + ")") # Part 1 - Rectangle Classclass Rectangle: """ A rectangle in a two-dimensional coordinate plane """ def __init__(self, bottom_left_x, bottom_left_y, top_right_x, top_right_y): """ Create a rectangle defined by its bottom left and top right corner coordinates """ self.bottom_left = Point(bottom_left_x, bottom_left_y) self.top_right = Point(top_right_x, top_right_y) self.bottom_right = Point(top_right_x, bottom_left_y) self.top_left = Point(bottom_left_x, top_right_y) def __str__(self): """ Generate a string…
Create the class Suitcase. Suitcase has things and a maximum weight limit, which defines the greatest total allowed weight of the things contained within the Suitcase object. Add the following methods to your class: A constructor, which is given a maximum weight limit public void addThing(Thing thing), which adds the thing in the parameter to your suitcase. The method does not return any value. public String toString(), which returns a string in the form "x things (y kg)" The things are saved into an ArrayList object: ArrayList<Thing> things = new ArrayList<Thing>(); The class Suitcase has to make sure the thing's weight does not cause the total weight to exceed the maximum weight limit. The method addThing should not add a new thing if the total weight happens to exceed the maximum weight limit. Below, you find an example of how the class can be used: public class Main { public static void main(String[] args) { Thing book = new Thing("Happiness…
Please help me fix this java code which is supposed to be a Pac-Man game Java program is below import java.awt.*; import javax.swing.JFrame.*; public class ManyPacMans extends JFrame { public void paint(Graphics g) { g.drawghostShape(60,30,40); setBackground(Color.BLUE); g.fillghostShape(130, 30,100, 80); g.drawghostShape(60,30,40); setBackground(Color.PINK); g.fillghostShape(130, 30,100, 80); g.drawghostShape(60,30,40); setBackground(Color.RED); g.fillghostShape(130, 30,100, 80); g.drawOvalpacman(30,130,50, 60); setForeground(Color.yellow); g.fillOval(130,130,50, 60); } public Ghost(String imgPath, int x, int y, int speed, boolean ip) { super(imgPath, new int[] {0,0}, GHOST_WIDTH, GHOST_HEIGHT, GHOST_FRAMERATE, x, y); super.addFramesForAnimation("scatter", "ghost_scatter.png", 0, 0, 22,0); super.speed = speed; startX = x; startY = y; scoreValue = 200; } public ManyPacMans() { initUI(); } private void initUI() { add(new…
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For this assignment, you are asked to create a ColorfulBouncingCircle class. ColorfulBouncingCircle should extend ColorfulCircle. Unlike the other Circle classes, it will include a velocity for the x and y axes. The constructor for ColorfulBouncingCircle includes these parameters:public ColorfulBouncingCircle(double radius, double centerX, double centerY, Color color, double xVelocity, double yVelocity) Note that we are treating x as increasing to the right and y as increasing down, as with Java’s graphics coordinates system. This was also seen with Circle’s draw method. ColorfulBouncingCircles will bounce around in a playing field which the tester will provide. The ColorfulBouncingCircle class should have a public static method to set the playing field width and height: public static void setPlayingFieldSize(double newWidth, double newHeight) ColorfulBouncingCircle will also include a method which should alter its centerX and centerY with each time tick (similar to a metronome’s…