Create a class namely Circle and do the following: (i) Circle will have the following member variables: Point - an inner class having two members variables x and y representing the center and radius (a floating-point number) (ii) Crcate a method in the inner class namely getPoint() to print the point (x, y) that represents the circle center. (iii) Write a main method to create 10 random circles with the grid of (10, 10) and (70, 70).

Create a class namely Circle and do the following: (i) Circle will have the following member variables: Point - an inner class having two members variables x and y representing the center and radius (a floating-point number) (ii) Crcate a method in the inner class namely getPoint() to print the point (x, y) that represents the circle center. (iii) Write a main method to create 10 random circles with the grid of (10, 10) and (70, 70).

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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Create a Point class to hold x and y values for a point. Create methods show(), add() and subtract() to display the Point x and y values, and add and subtract point coordinates. Create another class Shape, which will form the basis of a set of shapes. The Shape class will contain default functions to calculate area and circumference of the shape, and provide the coordinates (Points) of a rectangle that encloses the shape (a bounding box). These will be overloaded by the derived classes; therefore, the default methods for Shape will only print a simple message to standard output. Create a display() function for Shape, which will display the name of the class and all stored information about the class (including area, circumference and bounding box). Build the hierarchy by creating the Shape classes Circle, Rectangle and Triangle. Search the Internet for the rules governing these shapes, if necessary. For these three Shape classes, create default constructors, as well as constructors…
Write a method for the farmer class that allows a farmer object to pet all cows on the farm. Do not use arrays.
This is for pygame Text Class The Text class inherits from Drawable and it will be used to display the player's score. 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 import pygame import abc import random class Drawable(metaclass - abc. ABCMeta): def --init(self, x- 0, y -0): self.x - x self.y - y self.position - (self.x, self.y) self.visible - False def setloc(self, p): self.x - p[0] self.y - p[1] def getloc(self): return(self.x, self.y) def getX(self): return self.x def getY(self): return self.y eabc.abstractmethod def draw(self, surface): pass eabc.abstractmethod def get_rect(self): pass
USING JAVA: Part A) Implement a superclass Appointment and subclasses Onetime, Daily, and Monthly. An Appointment has a description (for example, “See the dentist”) and a date. Write a method, occuresOn(int year, int month, int day) The check whether the appointment occurs on that date. For example, for appointment, you must check whether the day of the month matches. This fill an array of Appointment objects with a mixture of appointments. Have the user enter a date and print out all appointments that occur on that date. Part B) Improve the appointment book by giving the user the option to add new appointments. The user must specify the type of the appointment, the description, and the date.
private int b; public int method3() { return b; } // in another class an object of the first class was introduced and inside the second class : float y = tester.method3(); are there any errors ? and explain please
write a class book, which has 3 attributes: title, price, quantity. Write the following methods, (8 points) a. setter/getter methods for each of the 3 attributes. b. __str__ method to display the complete information for the book, including title, price and quantity c. Method sell_copies(), passing the number of copies sold, which will reducethe value of quantity of the book. write the code in python please and thank you
Define a class Student to create Student Objects. The class defines two variables for its objects: name (String ) and average (double). The class provides a constructor with arguments and includes the following object methods to do the following: - public void print() : prints the Student data - public void setAverage(double newAvergae): sets the student average with a new value. Define a class StudentTest In the main method, create three student objects (Ali, Rami, Khalid) with initial average 60 for each one. - Call the setAverage method on each created student to change their average with a randomly value (hint: use Math.random( ) method to generate average value in range [0..100]). - Print the name of the student who's the maximum average. hint: you should compare between the Student objects according to their average.
Number 11
Define a new "Exam" class that manages the exam name (string) and its score (integer). For example, an exam can have - "Midterm Exam", 100 - "Final Exam", 50 The class must not provide the default constructor. It must require the exam name and score in order to initialize the Exam object. The class must provide only the following methods (no more and no less): - isPerfect method that returns true if the score is exactly 100 and false otherwise. - isPassing method that returns true if the score is equal or greater than 70 and false otherwise. - toString method must return all the exam information including the result of the exam as a string in the following format: EXAM(<name>) SCORE(<score>) RESULT(Pass/Fail) such asEXAM(Midterm Exam) SCORE(100) RESULT(Pass) EXAM(Final Exam) SCORE(50) RESULT(Fail) "Pass" means the score is greater or equal 70. "Fail" is whenever the score is below 70. - isGreater method that compares with another Exam object and return true if the score…
1. Implement the above system using inheritance in the best possible way. Keep every object size as small as possible. Implement all methods (setter/getter/constructors and destructors) Note that the region area is 0 while the city is len*width and the country is the sum of their cities. 2. Create array of countries called Arab of 22 countries, Write a function fill that fills the arrav Arab 3. Write a method that finds the city that has the max area in a country 4. Write a method that sorts the cities in a country from the largest to the smallest area 5. Write a function that retums array of countries of the same area of Arab 6. Write a function that compares between two countries. It returns true if countryl area greater than country2 area. 7. Write a function to move a city from one country to another.
Write a program that test methods in the class. • Hint: the employee deserved retirement if he has year of Service >25 or his age >=65. 5. Design a class named MyInteger. The class contains: • An int data field named value(int) Methods isEven() and respectively. Write a program that test methods in the class. isOdd() that return true if the value is even or odd.