In what situations might you encounter a ClassCastException when using the Comparable interface, and how can you prevent it?
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In what situations might you encounter a ClassCastException when using the Comparable interface, and how can you prevent it?
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- What is the usage of the spawned object?Does a constructor have any means of indicating to a client that it cannot correctly set up the new object’s state? What should a constructor do if it receives inappropriate parameter values?write a driver for the code and attach both so that the driver can be run to test the Class
- You have decided to change the instance type for instances running in your application tier that is usingAuto Scaling. In which area we can change the instance type definition?What is the best first step to include in your implementation of equals(Object o) anytime you override it? Group of answer choices 1. Check if all instance variables of the invoking object and the input object are all equal. 2. Cast the passed in object as the class of the object invoking equals. 3.Check for identity (using ==). 4.Check if the invoking object (this) and the passed in object both implement the same interface, using instanceof. 5. No answer text provided.In this assignment, you will create a class that you will need for the upcoming Super Ghost project. Please do your best job on this assignment as early as possible. You will depend on the code in this assignment in your final Super Ghost Project. Create a class named MyIOManager that implements the accompanying interface IOManager. MyIOManager should adequately implement all methods in the IOManager such that it accepts and returns the defined parameters and throws the outlined exceptions correctly. When you submit your assignment to Grader Than only submit your MyIOManager.java file. Please read the programmatic documentation of the IOManager interface to gain an understanding of what each function should do. This assignment will test your knowledge of serializing and deserializing a binary file, implementing interfaces, and throwing exceptions.
- In this assignment, you will implement a series of functions and classes you will need for the upcoming Ghost project. Please do your best job on this assignment as early as possible. As you will depend on the code in this assignment in the ghost project. You will be given two interfaces and two abstract classes, FileTextReader, FileTextWriter, AbstractFileMonitor, and AbstractDictionary. Your job is to create two classes the first class should be named FileManager, the second class should be named Dictionary. The FileManager will implement the interfaces FileTextReader and FileTextWriter and extend the class AbstractFileMonitor. Your class signature would look something like the following: public class FileManager extends AbstractFileMonitor implements FileTextReader, FileTextWriter{... The constructor signature of the FileManager should look like the following: public FileManager(String filePath){... The Dictionary will extend the abstract class AbstractDictionary. Your class…Which of the following is an example of dynamic dispatch? A: Assume you have an interface Car. There are three classes that implement the Car interface: Accord, Civic, Charger. Each of these classes has their own drive() method. There is an object myCar of type Car. When you invoke the drive() method, by calling myCar.drive() the correct implementation of drive() is chosen at runtime based upon the concrete class of myCar. B: Assume you have a variable myVariable. You have a for loop. The first time through the loop you set myVariable to an int, the next time you set it as a double, the next time a String, and finally an int. Each iteration of the loop myVariable has the correct type. C: Assume you have a class call Computation. Your computation class has a static method called add(). This method has three different versions:add(int x, int y)add(float x, float y)add(double x, double y)When you run Computation.add(x,y) the correct version of the method is chosen at compile time based…What are the advantages of interfaces?Why not just instanciate class objects directly?
- Create a class named MyIOManager that implements the accompanying interface IOManager. MyIOManager should adequately implement all methods in the IOManager such that it accepts and returns the defined parameters and throws the outlined exceptions correctly. When you submit your assignment to Grader Than only submit your MyIOManager.java file. package homework;import java.io.FileNotFoundException;import java.io.IOException;public interface IOManager<T extends Object> {/*** Sets the file path that this IOManager will read and write an object from. This* file location will be used by {@link #read()} and {@link #write(Object)}* @param path The file location to be read and written to* @throws FileNotFoundException when the specified path can not be found.* @throws IllegalArgumentException When the specified path points to a folder/directory rather than a file*/public void setPath(String path) throws FileNotFoundException, IllegalArgumentException;/*** The file path that is…The StateManager Interface is a generic interface which has two methods changeState (boolean : status). This method is used to change the status of InvoiceItem and PrescriptionItem. The possible status for InvoiceItem can be (Available – true or Unavailable - false), whereas PrescriptionItem has status (Recommended-true or Prohibited – false) passed to the method as an argument. The reset () method sets the default value for both InvoiceItem and PrescriptionItem. The Item class is self-explanatory. It implements the StateManager interface, and has toString method which prints the information in the following format. "Item Name: <<name>> (<<id>>)” e.g. Item Name: Panadol (223) Two classes PrescriptionItem and InvoiceItem are inherited from Item class representing the items that can be sold with doctor’s prescription and without prescription respectively with following functionalities: The constructors of PrescriptionItem and InvoiceItem initialize fields to…Below for each class you find a UML and description of the public interface. Implementing the public interface as described is madatory. There's freedom on how to implement these classes.The private properties and private methods are under your control.. There are multiple ways of implementing all these classes. Feel free to add private properties and methods. For each object, it's mandatory to create a header file (.h), implementation file (.cpp) and a driver. Blank files are included. The header should have the class definition in it. The implementation file should contain the implementations of the methods laid out in the header fine. And finally the Driver should test/demonstrate all the features of the class. It's best to develop the driver as the class is being written. Check each section to see if there are added additional requirements for the driver. Two test suites are included so that work can be checked. It's important to implement the drivers to test and demonstrate…