Define a Trivia class that contains information about a single trivia question. The question and answer should be defined as instance variables of type String. Create accessor and mutator methods. In your main method create two Trivia objects with questions and answers of your choice. Then for each Trivia object have your
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- An arithmetic progression is a sequence of numbers such that the difference between the consecutive terms is constant. For instance, the sequence 5, 7, 9, 11, 13, 15 is an arithmetic progression with a common difference of 2. Given the class IntNumber: 1. public class IntNumber 2. { 3. public final int value; 4. 5. public IntNumber(int number) { 6. this.value = number; 7. } 8. } where value is an immutable field, that can be directly accessed (public), implement a class called ArithmeticProgression that implements the following methods: •1 public static IntNumber getArithmeticProgressionDifference(ArrayList< IntNumber> list) which returns the difference between terms of the arithmetic progression (as an object of type IntNumber) if the values of the IntNumber objects are an arithmetic progression. The method returns null in any other case. • public static void printIsArithmeticProgression(ArrayList<IntNumber> list ) which prints on the console: The list is an arithmetic…arrow_forwardbox1 and box2 are instances of the Box class. Attributes length, width, and height of both box1 and box2 are read from input. Then, two strings are read from input. In the Box class, define instance method print_measurements() with self and one string as parameters to output the string parameter in one line, and the following in the next line: The value of attribute length ' by ' The value of attribute width ' by ' The value of attribute heightarrow_forwardAn arithmetic progression is a sequence of numbers such that the difference between the consecutive terms is constant. For instance, the sequence 5, 7, 9, 11, 13, 15 is an arithmetic progression with a common difference of 2.Given the class IntNumber:1 public class IntNumber2 {3 public final int value;45 public IntNumber(int number) {6 this.value = number;7 }8 }where value is an immutable field, that can be directly accessed (public), implement a class called ArithmeticProgressionthat implements the following methods:•1 public static IntNumber getArithmeticProgressionDifference(ArrayList<IntNumber> list)which returns the difference between terms of the arithmetic progression (as an object of type IntNumber) if thevalues of the IntNumber objects are an arithmetic progression. The method returns null in any other case.•1 public static void printIsArithmeticProgression(ArrayList<IntNumber> list)which prints on the console:The list is an arithmetic progression with difference =…arrow_forward
- 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 potarrow_forwardConsider a class that could be used to play a game of hangman. The classhas the following attributes:- the secret word- the disguised word, in which each unknown letter is replaced with a question mark (?). For example, if the secret word isabracadabra and the letters a, b, and e have been guessed, the disguisedword would be ab?a?a?ab?a.- the number of guesses made- the number of incorrect guessesIt will have the following methods:- makeGuess(c) guesses that character c is in the word.- getDisguisedWord returns a string containing correctly guessed letters in their correct positions and unknown letters replaced with ?.- getSecretWord returns the secret word.- getGuessCount returns the number of guesses made.- isFound returns true if the hidden word has been discovered.a. write method heading for eeach methodb. write preconditions and postconditions for each methodc. write some java statements that test the classd. Implement the class.2. Write an application that plays the game of…arrow_forwardThis question concerns writing a Student class to model a student's name, composed of a first name, middle name and last name. The Student class should meet the following specification:Class StudentA Student object represents a student. A student has a first name, middle name and last name.Methodspublic void setNames(String first, String middle, String last)// Set the first, middle and last names of this Student object.public String getFullName()// Obtain the full name of this Student with the middle name converted to an initial only.2Thinking of the problem in terms of testing, there are three requirements that must be met:1. The setNames() method sets the names stored in the object i.e. the values of firstName, middleName, lastName.2. The getFullName() method obtains the name of the student with the middle name converted to an initial only.3. The getFullName() method does not change anything – i.e. it does not modify the values of firstName, middleName, lastNameHINT: To start your…arrow_forward
- (Java) Question 6 Explain the answer step-by-step and include verbal explanation. Thank you! Given the below Tesla class, update the class to inherit from the Comparable interface and also write a compareTo method that orders two Tesla objects according to 1. model, 2. range, and 3. color: public class Tesla { private String model; private int range; private String color; public Tesla(String model, int range, String color) { this.model = model; this.range = range; this.color = color; } @Override public boolean equals(Object o) { if (this == o) return true; } else if (!(o instanceof Tesla)) { return false; } else { Tesla t = (Tesla) o; return model.equals(t.model) && range == t.range && color.equals(t.color); } }}arrow_forward1/ Implement a class Employee. An employee has a name (a string) and a salary (a double). Provide a constructor with two arguments public Employee(String employeeName, double currentSalary) and methods public String getName() public double getSalary() public void raiseSalary(double byPercent) These methods return the name and salary, and raise the employee's salary by a certain percentage. Sample usage: Employee harry = new Employee("Hacker, Harry", 50000); harry.raiseSalary(10); // Harry gets a 10 percent raise Supply an EmployeeTester class that tests all methods. 2/Implement a class Car with the following properties. A car has a certain fuel efficiency (measured in miles/gallon or liters/km—pick one) and a certain amount of fuel in the gas tank. The efficiency is specified in the constructor, and the initial fuel level is 0. Supply a method drive that simulates driving the car for a certain distance, reducing the amount of gasoline in the fuel tank. Also supply methods…arrow_forwardWrite a complete program for the description given below. Consider a Billing class that implements an interface Payable having a method getTotalPayment Amount(). Besides this, you have a Doctor class with private instance variables (docID, docName, and docFee) and a public getDoc() method, Patient class with private instance variables (pName, pID. pDisease), Medicine class with private instance variables (medID, medName, medQty, medPrice), and Medical Test class with private instance variables (testID, testName, testPrice). Each of these classes has the toString() method to display the information of its object. The Billing class is having "Has A" relationship with the other four classes (Doctor, Patient, Medicine, and MedicalTest) mentioned above. The getPayment Amount() method of Billing class returns the total billing amount that includes doc fee, medicine cost, and medical test fee that a patient has to pay. After implementing these classes, you are required to do the following in…arrow_forward
- For beginning Java, here is my assingment " 1. Define a Java class named “Appointment” that contains a day, a month and adescription of the appointment (string). It should provide at least a method named“hasTheSameDate” that will compare with another Appointment object andreturn true if it has the same date (day and month) and false otherwise. It shouldalso have the toString() method to return a string in the format of“mm/dd: description” such as “6/1: Meet with John”2. Write the main method to show how you can create Appointment objects, call thehasTheSameDate() method and print out the “Appointment” information: a. Ask the user for input for 2 appointment objects. b. Print the 2 objects. c. Call hasTheSameDate() to compare the 2 objects and tell the user if they are the same or different."Here is my code, and I don't know on what is wrong with my code: " import java.util.Scanner; class Appointment { private int day; private int month; private String…arrow_forwardConsider a class Movie that contains the following information about a movie. The class has the following attributes: Title MPAA Rating (e.g. G, PG, PG-13, R) Number of people who rated this movie as a 1 (Terrible) Number of people who rated this movie as a 2 (Bad) Number of people who rated this movie as a 3 (OK) Number of people who rated this movie as a 4 (Good) Number of people who rated this movie as a 5 (Great) Implement the Movie class such that it is able to contain the above information. Include constructor that would accept two parameters and initialize the movie's title to the value of its first parameter and the movie's MPAA rating to the value of its second parameter, and public rating to 0. Also include access member functions for title and MPAA rating. Include a member function to increment the public rating that will only accept integer values between 1 and 5. Finally, write a member function that would return the average public rating of a movie. Write a…arrow_forwardConsider the following class Date, which represents a date using three ints for month, day and year: class Date { private: int month; int day; int year; public: Date() { month = day = year = 0; } Date(int m, int d, int y) { month = m; day = d; year = y; } bool operator==(Date); bool operator<(Date); }; Write an implementation for both overloaded operators. == should return true if the Date objects are equivalent and false if not. < should return true if the Date of the calling object (left object) comes before the parameter Date object (right object) and false if not. You may assume that all objects of class Date are valid, i.e. month is between 1 and 12, inclusive; day contains an appropriate day for the given month, and year can be anything. You do not need to demonstrate calling these operators.arrow_forward
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