Implement a constructor for a Product class that takes in an integer, a string, and a Supplier object and uses these to initialize the data members int id, string name, and Supplier source. Note that Supplier objects do not have a default constructor, but they do have a valid copy constructor.
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- Modify the GeometricObject classto implement the Comparable interface and define a static max method in theGeometricObject class for finding the larger of two GeometricObject objects.Draw the UML diagram and implement the new GeometricObject class. Writea test program that uses the max method to find the larger of two circles, the largerof two rectangles.For a parking management system, use the Observer pattern to implement this interaction using Java and implement the three classes mentioned below. Implement a ParkingObserver that has the role of the Observer. The Observable classes (Subjects) will be the ParkingLots. It would be helpful if the notify method in the subjects (and update method in the observers) took a parameter, perhaps an object of type ParkingEvent, which could have fields including the lot, timeIn, timeOut (if relevant), and permit. The ParkingObserver should register with each ParkingLot and receive the messages. 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. Based on these requirements you should implement three actor classes in this interaction using java: TransactionManager, ParkingObserver and ParkingLot. 1. The…Define a class named ComparableCirclethat extends Circle and implements Comparable. Draw the UML diagramand implement the compareTo method to compare the circles on the basis ofarea. Write a test class to find the larger of two instances of ComparableCircleobjects, and the larger between a circle and a rectangle.
- Complete the class LeprechaunGold to model a stash of gold coins at the end of the rainbow. There is a maximum capacity to the number of gold coins a leprechaun can store at any given time (the pot they store them in can only hold so many). The pot also holds a current amount. What does the LeprechaunGold object need to remember? Those are the instance variables. Provide a constructor that takes the maximum capacity as a parameter. The constructor initializes the instance variables (two of them). Provide methods public int getCapacity() - gets the maximum capacity public int getAmount() - gets the number of coins in the pot public void donate(int coins) - simulates making a donation public void save(int coins) - simulates adding more coins to the potImplement a toString method for the following class that returns a string containing the class name and the names and values of all instance variables.Write a generic class of Shape with the attribute of center and operation to calculate area. Inherit the classes of Circle, Triangle, and Square such that the operation to calculate area has dynamic late binding. Write these classes such that Shape is an abstract class whereas all others are concrete classes
- If a class implements the Comparable interface, it is easy to swap in/out different strategies for comparing objects of that class. For example, if our Shapes implement Comparable and provide a compareTo() that compares areas, we can provide another compareTo() override for those shapes that compares perimeter. Group of answer choices True FalseWe 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 a collection of permit ids (getPermitIds) 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 method as mentioned aboveWrite java class for student with properties Name Marks And construtor to set data and one compareMarks method which will compare marks of two student and will return max marks
- We 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 aboveThe 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…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.