In Java, give an example of a class that implements the Comparable interface, and explain how the implementation of the compareTo method determines its return value.
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In Java, give an example of a class that implements the Comparable interface, and explain how the implementation of the compareTo method determines its return value.
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- Please answer number 1 to 5 as they are linked altogether. Why is encapsulation called Data Hiding? What are the main benefits of using encapsulation in Java? Provide an example of how to achieve encapsulation in Java. Is it possible to declare abstract methods as private? Justify the answer. Is it compulsory for a class, which has been declared as abstract, to have at least one abstract method?The Doctor program described in Chapter 5 combines the data model of a doctor and the operations for handling user interaction. Restructure this program according to the model/view pattern so that these areas of responsibility are assigned to separate sets of classes. The program should include a Doctor class with an interface that allows one to obtain a greeting, a signoff message, and a reply to a patient’s string. To implement the greeting, define a method named greeting for the Doctor class. To implement the signoff message, define a method named farewell for the Doctor class. Both greeting and farewell should return a string with a greeting or farewell message respectively. The reply function is defined for you, it should be added as a method for the Doctor class. The rest of the program, in a separate main program module, handles the user’s interactions with the Doctor object. Develop this program with a terminal-based user interface. Note: The program should output in the…IN JAVA you will implement either the Cat or Dog Java class. Your class must meet all of the specifications from the UML Class diagram. Be sure to include the following in your Cat or Dog class: All attributes (variables) with appropriate data types. Note that the types are not specified in this UML class diagram. You will need to think about what the most appropriate data type is for each attribute. At least one constructor method that initializes values for all attributes Accessors and mutators for all attributes. Each attribute should have a corresponding accessor (“getter”) and mutator (“setter”) method. These methods are indicated in the class diagram. In-line comments and appropriate white space, according to the style guidelines you have learned so far in the course
- Implement the following parking permit class using java It has a dependency on the car class, no need to implement the car class. Use the diagram for refrenceGiven a class student that represents names and grades of a class: 1. How would we implement the Comparable interface in our class so we can compare the scores of individual students? Write the complete Class Header implementing this interface. 2. Write the complete Method Header for the Student class's compareTo method. You do not need to write the body of the method.Below we have class diagrams with three classes for a simple java based parking management class. Use the classes below to write java code for classes :a parking observer class (that implements an observer pattern) , a transaction manager class and a parking lot class(subject to the observer). Use the class diagram and java class to implement it. You should use an observer pattern to implement your code.The main goal is to implement the following - Once a car enters (in an entry-scan only lot) or leaves (in an entry-scan and exit-scan lot), then the ParkingObserver will be updated, and then can register the charge with the parking system via the TransactionManager’s park() method
- In C++ Language using Functions and Pointers PROBLEM: Consider the elevator in the Faculty of Engineering (5 storey). Write a program which accepts the floor number where a passenger (student/faculty/other personnel) will ride the elevator. The passenger can then input the target destination floor. SPECIFICATIONS: Implement the class diagram below: Inside the main method, create an instance of the class Elevator. Use the goUp or goDown methods to generate the program display.Passenger can ride in any floor (1,2,3,4 or 5). Program will prompt the user with the target destination floor. After the user input: Program will display the floors which the elevator passes through, and finally the destination floor. Elevator will not move if the input for destination floor is the same as the present floor. Program will notify the user and then terminate. Program will also terminate if the input destination is not 1,2,3,4 or 5. You’re free to format the input/output display. Observe proper…Your assignment for this course is to implement a beginner level Book Management System (BMS) in Java language. BMS contains 2 classes: Bookand BookList. The Book class has the following attributes: code: a String object, that hold the book’s code. title: a String object, that hold the book’s title. qua: int variable, that hold the number of books with the same code in the library. price: a double variable, that hold the book’s price. The BookList class contains only one data member: ArrayList<Book> t. When running the program display the menu as below:1. Input & add book(s) to the end.2. Display all books.3. Search a book for given code.4. Update the book’s price for given code.5. Find the (first) max price value.6. Sort the list ascendingly by code.7. Remove the book having given code.8. Load data from file.0. Exit.Notes:(1) The book’s code must be unique in the list.(2) Display all books in format (code, title, quantity, price).(5)…Explain through each question about Classes and Objects in Java. What is encapsulations and why is it useful? What is an instance method and how does it differ from the static methods we learned previously? What is a mutator method? What is an accessor method? What is a constructor in a Java class? What is an implicit parameter? Please provide an entire coding example to illustrate the answer.
- Implement all the classes using Java programming language from the given UML Class diagram. Note: This problem requires you to submit just two classes: Person.java, User.java, Coach.java. Do NOT include "public static void main()" method inside all of these classes.Elaborate the connection of Class and Interface by inserting actual code in the answerExplore advanced scenarios of method overriding, such as overriding static methods and constructors, and their implications.
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