QUESTION 5 Suppose there is a class named anotherClass that has an array attribute named books of type Book. Write a public method named displayData that returns a deep copy of the attribute books. For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac). BI U Paragraph A v Arial 14px ... I!! !!!

QUESTION 5 Suppose there is a class named anotherClass that has an array attribute named books of type Book. Write a public method named displayData that returns a deep copy of the attribute books. For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac). BI U Paragraph A v Arial 14px ... I!! !!!

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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Implement a class named Parade using an ArrayList, which will manage instances of class Clown. Each Clown only needs to be identified by a String for their name. Always join a new Clown to the end of the Parade. Only the Clown at the head of the Parade (i.e., the first one) can leave the Parade. In addition, also write a method called isFront that takes a Clown as parameter and returns true if the passed clown is at the front of the parade otherwise returns false. Create a test application to demonstrate building a parade of three or four clowns and include your own name. Then, remove one or two, and add another one or two. Also, test the isFront method by passing different clowns to the method.
Redefine the equals method of the class Date (Display 4.13) so that it hasa parameter of type Object and follows the other guidelines we gave for anequals method. (Remember, you should use getClass(), not instanceof.)
Write a class ArrayMethods, where the main method asks the user to enter thenumber of inputs and stores them in an array called myList. Create a methodprintArray that prints the array myList. Create another method copyArray that copiesthe array using System.arraycopy, and multiplies each element in the copied array by2, then finally returns the array to the main method. Invoke the printArray again toprint the array returned by copyArray. In summary, see below. (!5 points)• main method does: asks user for inputs and stores in array. Invoke printArray. Invoke copyArray.Invoke printArray again.• printArray: void method, parameters passed is an array, prints an array• copyArray: array-returning method, parameters passed is an array, copies array, multiplies 2 to eachelement in the copied array, returns the copied arraySample RunEnter the number of items: 4Enter the numbers: 2 3 4 6Your printed array: 2 3 4 6Your copied printed array: 4 6 8 122. Write a class ArrayClass, where the main…
When you add a contact to your phone, it automatically sorts those names alphabetically. In this exercise, we are going to create a phonebook that automatically sorts everytime a new number is added to the phonebook. A PhoneNumber class has been created already that has the instance variables name and number. Your job is to create the PhoneBook class that will store an ArrayList of PhoneNumbers. The PhoneBook class does not have a constructor - it only contains an ArrayList that can store the individual phone numbers that are added to it. There should be three methods in the PhoneBook class: addNumber- This method takes a PhoneNumber and adds it to the directory. Once the number has been added, the sort method is called on the directory to sort that new address into the phone book. sort- This method sorts the directory in alphabetical order A-Z.a. Remember that in order to compare Strings, we can use the compareTo() method. This returns an integer that indicates whether a String’s…
Use the GemotricObject class and its subclassess Cirlce and Rectangle to do the following: 1.Override Object’s toString() method in Circle class to returnthe status of Circle object. 2.Override Object’s toString() method in Rectangle class to return the status of Rectangle object. 3.Overide Object’s equals() method to compare two circle objects. 4.Overide Object’s equals() method to compare two Rectangle objects. 5.Test the above statements in the main method.
In Java, please. Complete the Course class by implementing the findStudentHighestGpa() method, which returns the Student object with the highest GPA in the course. Assume that no two students have the same highest GPA. Given classes: Class LabProgram contains the main method for testing the program. Class Course represents a course, which contains an ArrayList of Student objects as a course roster. (Type your code in here.) Class Student represents a classroom student, which has three fields: first name, last name, and GPA. (Hint: getGPA() returns a student's GPA.) Note: For testing purposes, different student values will be used. Ex. For the following students: Henry Nguyen 3.5 Brenda Stern 2.0 Lynda Robison 3.2 Sonya King 3.9 the output is: Top student: Sonya King (GPA: 3.9) LabProgram.java import java.util.Scanner; public class LabProgram { public static void main(String args[]) { Scanner scnr = new Scanner(System.in); Course course = new Course(); int…
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Complete the Course class by implementing the findStudentHighestGpa() method, which returns the Student object with the highest GPA in the course. Assume that no two students have the same highest GPA. Given classes: Class Course represents a course, which contains an ArrayList of Student objects as a course roster. (Type your code in here.) Class Student represents a classroom student, which has three private fields: first name, last name, and GPA. (Hint: GetGPA() returns a student's GPA.) Ex: If the following students and their GPA values are added to a course: Henry Nguyen with 3.5 GPABrenda Stern with 2.0 GPALynda Robison with 3.2 GPASonya King with 3.9 GPA then the findHighestStudent() method returns a student and the program output is: Top student: Sonya King (GPA: 3.9)Code:Course.java: import java.util.ArrayList; //create class Student //create class Courseclass Courses{ private ArrayList<Student> roster; // collection of Student object // class constructor…
Modify the below program and add another public method called isEqual(). This method will determine if two fractions represent the same number (i.e. fraction), and return a Boolean result to indicate this. The method will take a Fraction class object as a parameter to compare with the ‘calling object’. We need to find a way to equate fractions represented as two integers. Modify your client class to test the Fraction class functionality that has been just added. import java.util.ArrayList; import java.util.Scanner; //Define the class Fraction class Fraction { private int n, d; public Fraction() { this.n = this.d = 0; //Initialize the values } public Fraction(int n, int d) { this.n = n; //Initialize the variables this.d = d; } //Define the getter function getNum() that returns the numerator public int getNum() { //Returns numerator return n; } //Define the getter function getDen() that…
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Creates a class called CourseClass with 6 attributes: a. name: the course name; b. maxStud: a maximum number of Student into the CourseClass; c. nbStud: the current number of Student into the CourseClass. When a CourseClass is created, the number nbStud is equal to 0; d. Student Stud[]: an array of Student. The size of this array is equal to maxStud; e. CourseTeacher: the Teacher (of type Teacher) responsible of this course; f. LabTA: The TA (of type TA) responsible of the course's Lab; Add the following methods: e. Constructor: able to create a CourseClass with maximum 10 Students; f. overload the operator += (Student): able to add a Student to the CourseClass. The Student will be added to the Stud array. You need to be sure that an available space exits (uses the function assert); g. find(StudentName): this method allows to find a Student by his Name. If it exists, the Student will be displayed, else, am error message will be displayed; h. display: this method aims to display all…
Question#4: Override the clone() method in the BankAccount class to perform deep copying. Verify your code in the main() method by creating a deep copy of a BankAccount object and displaying that the copied object is equivalent to the original object. public class BankAccount implements Cloneable{ private int accountNumber; private int balance; private Date createDate; // constructor for creating a bank account public BankAccount(int accountNumber, int balance) { this.accountNumber = accountNumber; this.balance = balance; this.createDate = new java.util.Date(); } //deposit money public int deposit(int amount) { balance = balance + amount; return balance; } //withdraw money public int withdraw(int amount)…