Using a text editor create an Abstract Data Type for an airplane. The class will begin with: public abstract class Airplane { Include at least 4 private attributes(fields) and 8 methods that describe the behavior of an airplane. Include both abstract methods and methods with an implementation body. Search for "Java abstract Car class" on the internet to see an example of an abstract class for a Car. You must also include a UML of the Airplane class.
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I need help creating an java abstract airplane class with the use of mutators, accessors, private helpers. Image described below -
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- I need help creating a UML chart for this given Java abstract airplane class code below: public abstract class Airplane { private int numPassengers, numSeats, numStaff, price; private String name_record, model, color, type; private float speed, fuelCapacity; public abstract String getModel(); public abstract String getColor(); public abstract String getType(); public abstract float getSpeed(); public boolean isSeatAvailable() { return this.numPassengers < this.numSeats ? true : false; } public int numSeatAvailable() { return this.numSeats - this.numPassengers; } public int calculatePrice(int noPassenger) { return this.price * noPassenger; } public float calculateFuelCharge(float fuelPrice) { return this.fuelCapacity * fuelPrice; } }In Java, what is the difference between the Comparable interface and the Comparator interface? Group of answer choices 1. None of the above options are correct. 2. Comparable is an interface, while comparators is an abstract class. 3. Implementing Comparable allows the implementing class to compare instances of itself to other objects, while the Comparator interface is implemented by an auxiliary class that compares two objects of a given type. 4. Comparable guarantees that you can check for equality, while Comparator guarantees that you can order the items.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…
- Abstract classes and interfaces can both be used to specify common behavior of objects.How do you decide whether to use an interface or an abstract class? Explain youranswer.An Abstract Data Type's interface is comprised of what? Here's where you put your reply.write program in java Design an abstract class GeometricObject. GeometricObject must ensure that its children must implement calcArea() method. Design RectangleYourRegNo and CircleYourName Classes as children of GeometricObject class with overridden toString() method to return “Rectangle with w Width and h Height is drawn” OR “Circle with r Radius is drawn”. The attributes of Rectangle are length, width. The attribute of Circle is radius Hint: Area of circle=πr2 , Area of rectangle= width*length
- 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() methodWe have a parking office class for an object-oriented parking management system using java Add (implement )a method to the Parking Office c to return a collection of customer ids (getCustomerIds) using java I have attached two class diagrams with definitions of all related classes in our system (i.e car, customer, .....). N.B. Parking office methods in the class defination like register, getcustomer and addcharge have already been implemented, we just need an additional getcustomerID method as mentioned aboveAn abstract class's parent class's abstract methods must all be implemented by its subclasses. Is it real or not?
- What is an abstract class? Choose only one option.(a) An object(b) A class with no methods.(c) A class with no concrete subclasses.(d) A class with at least one undefined message.(e) An interface.Explain the difference between an interface and an abstract class.We have a parking office class for an object-oriented parking management system using java Add(implement) a method to the Parking Office class to return the collection of permit ids for a specific customer (getPermitIds(Customer)) using java I have attached two class diagrams with definitions of all related classes in our system (i.e car, customer, .....). N.B. Parking office methods in the class definition like register, getcustomer and addcharge have already been implemented, we just need an additional getPermitIds(Customer) method as mentioned above Explain your code in a few words Important- We have a method to return a collection of permit ids (getPermitIds), what we need is a method to return the collection of permit ids for a specific customer (getPermitIds(Customer))