Answer question Q2(a)-Q2(e) based on the information given in Figure Q2. A class named Rectangle contains: . Two double data fields named width and height that specify the width and height of the rectangle. A no-argument constructor that creates a rectangle with default value 1 for both width and height. (b) . . . A constructor that creates a rectangle with the specified width and height. A method named getArea () that returns the area of rectangle. A method named get Perimeter() that returns the perimeter of rectangle. A toString method that returns a string contains height, width, area of rectangle, and perimeter of rectangle. Figure Q2 Write a Java program to create class Rectangle. Implement all its attributes and methods. Write a Java program to create class MainRectangle. Implement method main in this class. Instantiate two Rectangle objects, one with default values and the other with width 4 and height 40. Display the width, height, area, and perimeter of each rectangle using toString() method.

Answer question Q2(a)-Q2(e) based on the information given in Figure Q2. A class named Rectangle contains: . Two double data fields named width and height that specify the width and height of the rectangle. A no-argument constructor that creates a rectangle with default value 1 for both width and height. (b) . . . A constructor that creates a rectangle with the specified width and height. A method named getArea () that returns the area of rectangle. A method named get Perimeter() that returns the perimeter of rectangle. A toString method that returns a string contains height, width, area of rectangle, and perimeter of rectangle. Figure Q2 Write a Java program to create class Rectangle. Implement all its attributes and methods. Write a Java program to create class MainRectangle. Implement method main in this class. Instantiate two Rectangle objects, one with default values and the other with width 4 and height 40. Display the width, height, area, and perimeter of each rectangle using toString() method.

Programming Logic & Design Comprehensive

9th Edition

ISBN:9781337669405

Author:FARRELL

Publisher:FARRELL

Chapter11: More Object-oriented Programming Concepts

Section: Chapter Questions

Problem 1GZ

See similar textbooks

Similar questions

1. Part 1: A point in the x-y plane is represented by its x-coordinate and y-coordinate. Design the class Point that can store and process a point in the x-y plane. Your class should contains the following methods. Default constructor without parameters that initializes the private data member to the suitable values Constructor with parameters sets the values of the instance variables to the values of the parameter. Accessor methods that return the values of the x-axis and y-axis. setPoint method which set the values of x-axis and y-axis makeCopy method that make a copy of a received object of type Point. getCopy method that returns a copy of the current object toString method that returns the object string isEqual that returns true if the current object is equal to the received object of type point distance, which receives two objects of type Point and returns the distance
Construct a Time class containing integer data members seconds, minutes, and hours. Have the class contain two constructors: The first should be a default constructor having the prototype Time(int, int, int), which uses default values of 0 for each data member. The second constructor should accept a long integer representing a total number of seconds and disassemble the long integer into hours, minutes, and seconds. The final member method should display the class data members.
Question 6 Create a set of classes and interface for the following scenario: Define an interface called Classical Music, which contains a get Year method that returns the year the classical album released. Create an abstract class Called CD. This class contains the title as String, and playingTime as integer (e.g. 60 minutes). Include a constructor to initialize all the data fields. Create an abstract method called printPlayingTime to show the CD playing details. Make sure all the data fields can be accessed directly from the child classes. Create a class called Album that inherits from the CD and Classical Music. Include a data field called year as integer type. Create a constructor to initialize all the data members. Override the getYear method to return the released year. Override the printPlayingTime method. If the CD title is more than 10 characters, this method will print the first 10 characters, followed by the three ellipse dots and the playing time. For example: Thriller 60…
Design a LandTract class that has two fields (i.e. instance variables): one for the tract’s length(a double), and one for the width (a double). The class should have:  a constructor that accepts arguments for the two fields  a method that returns the tract’s area(i.e. length * width)  an equals method that accepts a LandTract object as an argument. If the argument object holds the same data (i.e. length and width) as the calling object, this method should return true. Otherwise, it should return false.  a toString method (that returns a String representation of the tract’s length, width, and area). Demonstrate the class in a program by creating an array of three LandTract objects initialized with user input. Then, print the info of the LandTract objects stored in the array by invoking the toString method (implicitly or explicity). Also, use the equals method to compare at least two LandTract objects and print wether they are of equal size or not. Sample Output:…
Define the Circle2D class that contains: Two double data fields named x and y that specify the center of the circle with get methods. A data field radius with a get method. A no-arg constructor that creates a default circle with (0, 0) for (x, y) and 1 for radius. A constructor that creates a circle with the specified x, y, and radius. A method getArea() that returns the area of the circle. A method getPerimeter() that returns the perimeter of the circle. A method contains(double x, double y) that returns true if the specified point (x, y) is inside this circle. See Figure 10.14(a). A method contains(Circle2D circle) that returns true if the specified circle is inside this circle. See Figure 10.14(b). A method overlaps(Circle2D circle) that returns true if the specified circle overlaps with this circle. See the figure below. Figure (a) A point is inside the circle. (b) A circle is inside another circle. (c) A circle overlaps another circle. Draw the UML diagram for the class.…
Rectangle Object Monitoring Create a Rectangle class that can compute the total area of all the created rectangle objects using static fields (variables). Remember that a Rectangle has two attributes: Length and Width. Implement the class by creating a computer program that will ask the user about three rectangle dimensions. The program should be able to display the total area of the three rectangle objects. For this exercise, you are required to apply all OOP concepts that you learned in class. Sample output: Enter Length R1: 1 Enter Width R1: 1 Enter Length R2: 2 Enter Width R2: 2 Enter Length R3: 3 Enter Width R3: 3 The total area of the rectangles is 14.00 Note: All characters in boldface are user inputs.
I need a step by step explanation on how to create this project. Project: Flight Time Problem Description: Design two classes: Flight and Itinerary. The Flight class stores the information about a flight with the following members: A data field named flightNo of the String type with getter function. A data field named departureTime of the GregorianCalendar type with getter and setter functions. A data field named arrivalTime of the GregorianCalendar type with getter and setter functions. A constructor that creates a Flight with the specified number, departureTime, and arrivalTime. A function named getFlightTime() that returns the flight time in minutes. The Itinerary class stores the information about the itinerary with the following members: A data field named flights of the List<Flight> type. The list contains the flights for the itinerary in increasing order of departureTime. A constructor that creates an Itinerary with the specified fights. A function named…
Q3 Answer Q3(a)-Q3(c) based on the information given in Figure Q3. GradedActivity -score:double +setScore (s:double):void +getScore () :double +getGrade ():char FinalExam -numQuestions:int -pointsEach:double -numMissed:int +FinalExam (questions:int, missed:int) +getPoints ():double +getNumMissed ():int The above diagram shows the relationship between GradedActivity and FinalExam classes. The implementation of the setScore () method for the class GradedActivity is given as follows: public class GradedActivity { private double score; public void setScore (double s) { score = s; } FIGURE Q3 . ... ..
Object-oriented programming Create a class called Triangle that models triangles using three points (the vertices) for the x's and three points for the y's. The vertices will be of type double. It will have two constructors: one by default and one that creates a triangle from its three vertices. The class will also include a method to calculate the area and another to calculate the perimeter of the triangle. Attributes are of type public. Write here the class diagram and class code in Java
Define the Circle2D class that contains: Two double data fields named x and y that specify the center of the circle with get A data field radius with a get A no-arg constructor that creates a default circle with (0, 0) for (x, y) and 1 for radius. A constructor that creates a circle with the specified x, y, and radius. A method getArea() that returns the area of the circle. A method getPerimeter() that returns the perimeter of the circle. A method contains(double x, double y) that returns true if the specified point (x, y) is inside this circle. See Figure 10.14(a). A method contains(Circle2D circle) that returns true if the specified circle is inside this circle. See Figure 10.14(b). A method overlaps(Circle2D circle) that returns true if the specified circle overlaps with this circle. See the figure below. (a) (b) (c) Figure 10.14 (a) A point is inside the circle. (b) A circle is inside another circle. (c) A circle overlaps another circle. Draw…
To determine if two objects in a class are equal, we should NOT use "==". We should override the _____ method of the Object class with our own definition of equality.
Java Object Oriented Programming Create a Shape class that shall have color and filled instance variables of enum Color and boolean type. The filled boolean variable shall show, whether the shape is filled (colored). The enum Color shall be defined within the class having 4 color names (choose any four). Also define getArea and getPerimeter method in Shape class, both shall return 0. Create Rectangle class with length and width attributes and a Circle class with radius attribute, of type double. Properly encapsulate all fields. Circle and Rectangle shall extend Shape class and override getArea and getPerimters methods as per its type and specific formula. In Test class, create an object of Rectangle and Circle, by initializing all attributes in constructor and print both shapes' area and perimters. In Test class, define a static method with following signature, public static void printEachShapeCount(Shape... shapes) As you know, the parent type variable can hold the…