Assume the "Student" class has a constructor that assigns a string to ar attribute called "name", has a setter method that assigns a string to the object's "name" attribute and a getter method that returns a Student object's name attribute. What will the following code print? Student student1 = new Student("Alex"); Student student2 = student1; Student student 3 = student2 Student2.setName("Aiden") Student3.setName("River") System.out.println(student1.getName());

Assume the "Student" class has a constructor that assigns a string to ar attribute called "name", has a setter method that assigns a string to the object's "name" attribute and a getter method that returns a Student object's name attribute. What will the following code print? Student student1 = new Student("Alex"); Student student2 = student1; Student student 3 = student2 Student2.setName("Aiden") Student3.setName("River") System.out.println(student1.getName());

Programming Logic & Design Comprehensive

9th Edition

ISBN:9781337669405

Author:FARRELL

Publisher:FARRELL

Chapter10: Object-oriented Programming

Section: Chapter Questions

Problem 19RQ

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Assume we have a Book class that includes authorInit and pubYear attributes of type Stringand int, respectively, both set by the constructor. Write a compareTo method for this class, so thatbook objects are ordered based on the author’s initials first and then (if needed) the publication year. DO NOT assume the length of String type authorInit to be 2.
1 - Student class Make a class student (in student.py) that stores the following information for a student: Name (name) Student number (student_nr) Points per assignment (points_per_assignment) Exam grade (exam_grade) a) Behind each point of information is the name of the parameter to the initializer method. Store this information from the parameters in the object attributes with the same name. b) Add a method course_points() which returns the number of course points the student has gotten. Example: mary = Student("Mary", 15789613, [10, 9, 8, 10, 9, 10], 9)print(mary.course_points()) > 121 The calculation of the course points is explained in the course overview, course setup slides (Links to an external site.) and the first lectureLinks to an external site.. c) Add a method grade() which returns a the final grade of the student, rounded to nearest half (upwards, 6.75 -> 7). As per regulations, a 5.5 becomes a 6. If the student did not pass both the assignments (>= 95…
The Cat and Dog class below implement the Animal interface. All animals have names, but only dogs do tricks. Implement the describe method, using the instanceof operator to test whether the given animal is a dog. If so, return the name, a space, and the trick that the dog can do, such as "Helmut barks at the moon". If it is any other kind of animal, return the name, a space, and "has no tricks". public class Animals{ /** Describes the given animal. @param pet an animal @return a string with the animal's name, a space, and either the trick that the animal knows (if it is a dog) or a string "has no tricks" */ public static String describe(Animal pet) { // TODO: Complete this method } // This method is used to check your work public static String check(String name, String trick) { Animal pet; if (trick == null) pet = new Cat(name); else pet = new Dog(name, trick); return describe(pet); }
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IN JAVA LANGUAGE Write an ATM class with an ArrayList of Account objects as an attribute. In the constructor, add 3 Account objects to your ArrayList. They can all have a start balance of $100 and an annual interest rate of 0.12. Include two methods, menu and makeSelection as outlined below. Please note that since both methods get user input, create a Scanner attribute to use in both. menu method This method does not have any parameters and does not return a value. It should: Get the account number from the user. This corresponds to the index of the items in the ArrayList. Since there are 3 elements in your ArrayList, you are going to ask them for a number between 1 and 3, but keep in mind that the indices of the ArrayList are 0-2, so you'll have to adjust the value you get from the user accordingly. Present the user with a main menu as shown below: Get their menu selection Call the makeSelection method, passing it the account index obtained in step 1 and the menu selection…
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The goal of this coding exercise is to create two classes BookstoreBook and LibraryBook. Both classes have these attributes: author: Stringtiltle: Stringisbn : String- The BookstoreBook has an additional data member to store the price of the book, and whether the book is on sale or not. If a bookstore book is on sale, we need to add the reduction percentage (like 20% off...etc). For a LibraryBook, we add the call number (that tells you where the book is in the library) as a string. The call number is automatically generated by the following procedure:The call number is a string with the format xx.yyy.c, where xx is the floor number that is randomly assigned (our library has 99 floors), yyy are the first three letters of the author’s name (we assume that all names are at least three letters long), and c is the last character of the isbn.- In each of the classes, add the setters, the getters, at least three constructors (of your choosing) and override the toString method (see samplerun…