⚫ Task 1: Create a ClassTasksDefine a class named Person with attributes name and age. Write a method greet() that prints a greetingmessage including the person's name and age.⚫ Task 2: Rectangle ClassCreate a class Rectangle that takes length and width as parameters. Add methods area() and perimeter() tocalculate and return the area and perimeter of the rectangle.⚫ Task 3: Object InteractionCreate a Library dass that contains a list of books and methods to add, remove, and list all books in the library.• Task 4: Movie ClassCreate a class Movie with attributes title, director, and rating. Add a method display_info() that prints themovie's details and a method rate_movie (new_rating) to update the movie's rating.• Task 5: Ticket Class (homework)Define a class Ticket' with attributes event_name, date, and `price. Add methodsapply_discount(discount_percentage) to reduce the price by a given percentage and display_ticket()` to printthe ticket details including the final price after any discounts.

Task 1: Create a Class (Person Class)# Define the Person class with name and age attributes and a…

Answered: ⚫ Task 1: Create a Class Tasks Define a…

EBK JAVA PROGRAMMING

9th Edition

ISBN:9781337671385

Author:FARRELL

Publisher:FARRELL

Chapter11: Advanced Inheritance Concepts

Section: Chapter Questions

Problem 2GZ

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Create a Class Pet with the following data members Identification: String species : String (e.g. cat, dog, fish etc)  breed: String  Age (in days): int  Weight: float  Dead: boolean 1. Provide a constructor with parameters for all instance variables. 2. Provide getters for all and setters for only breed, and weight 3. Provide a method growOld() that increases the age of the pet by one day. A dead pet wont grow old 4. Provide a method growHealthy(float w) that increases the weight of the pet by the given amount w. A dead pet cannot grow healthy. 5. Provide a method fallSick(float w) that reduces the weight of the pet by the given amount. The least weight a pet can have is 0 which will mean that the pet has died. If the value of weigh is 10 kg and the method is called with an argument of 11 kg then you will set it to 0 and set the dead to an appropriate value to mark the death of the pet 6. Provide a toString method that shows an appropriate well formatted string…
A Door Class A computer game usually has many different objects that can be seen and manipulated. One typical object is a door. Whether a player runs through a castle, attacks the forces of an evil empire, or places furniture in a room, a door often comes into play. Implement a Door class as described below as well as a TestDoor class that instantiates three Door objects labeled “Enter,” “Exit,” and “Treasure.” The “Enter” door should be left unlocked and opened. The “Exit” door should be left closed and locked. The “Treasure” door should be left open but locked. A Door class A Door object can • display an inscription, • be either open or closed, and • be either locked or unlocked. Here are some rules about how Door’s work. • Once the writing on a Door is set, it cannot be changed. • You may open a Door if and only if it is unlocked and closed. • You may close a Door if and only if it is open. • You may lock a Door if and only if it is unlocked, and unlock a Door if…
Please write code in JAVA Step 1: An Account class stores a current balance, and provides getBalance, deposit, withdraw, and toString methods in addition to at least one constructor. Add an account class to the project.Step 2: A CheckingAccount class extends the Account class and has additional attribute overdraft limit and additional method chequeDeposit. Implement the CheckingAccount class in the project. Make sure you add a constructor to the class.Step 3: Override the toString method in the CheckingAccount class to add the overdraft limit as well to the returned string.Step 4: A SavingsAccount class extends the Account class and has additional attribute interest rate and a method named addInterest to calculate and add the interest to the account. Implement the SavingsAccount class in the project. Implement the SavingsAccount class in the project. Make sure you add a constructor to the class.Step 5: Add a test class named AccountTester to the project and implement a main method in…
Part I Create a Ticket class. The design is up to you. Write the necessary methods. Part II Create a MovieTicket class that inherits from Ticket class. The design is up to you. Write the necessary methods. Part III Create a Theater class. The design is up to you. Write the necessary methods.
1. Write an app that computes student average2. Create a class called Student3. Use the init () function to collect the student information: name, math, science, and English grade4. Create a method (class function) that computes the average5. Create another method that outputs (similarly to) the ff when calledName: John Math: 90Science: 90English: 90Average: 90 (Passed)6. Instantiate a Student object and utilize the defined methods***Let the user input that student info
Creates a class Student with 3 attributes: name, id and level. a. Add a constructor able to create a Student; b. Add the methods getId and getLevel; c. Add the method display able to display the attributes,
Implement the following classes: Polygon numSide: int /* constructor */ /* accessor-mutator */ + area (): double + perimeter (): double Triangle sideA: double sideB: double sidec: double /* constructor */ /* accessor-mutator */ + area () : double + perimeter (): double Create an object for Triangle class and invoke area and perimeter method. Input Format Take triangle sides (sideA,sideB,sideC) as input from user. Constraints For Triangle, sideB+sideC > sideA
Create a class Animal with a constructor that takes no parameters and has an instance variable: private int energy; When an animal is "born," it has one unit of energy. It has the methods: public void eat(int amountToEat) - which increases the amount of energy the animal has by amountToEat public void move(int amountToMove) - which decreases the energy the animal has by amountToMove. public int getEnergy() - which returns the amount of energy left Notice there is no setEnergy method. Energy is only changed by eating or moving. You should also create a subclass BetterAnimal which has a cap on the amount of energy an animal can have. The constructor takes a parameter that specifies a maximum for energy. You will need to save this in another instance variable. Override the eat and move methods In the eat method: If the amount the BetterAnimal eats would set its energy above the max, the energy level is only increased to the max. Also energy is only changed if the amount > 0 In…
Can you use it in a scanner so i can copy paste please. Part 1 A regular triangle is one for which all sides are congruent and all interior angles. Create a class RegularTriangle with a field side (int) Create a constructor which accepts an int parameter and will assign the parameter to field side Create assessor and mutator for this class Create a method getPerimeter() which should return 3*side; Part 2 in the constructor, add a logic that if the input parameter is less than 5 then set the side to 5, if it is >10 then set the side to 10, otherwise set the side to the input value. Screenshot final output
in java
Write a class for the following object. Fraction - an object that represents parts of a whole number. A fraction is created by supplying a numerator and a denominator. Instance related actions 1. add - mutates this fraction by adding the other fraction value 2. subtract - mutates this fraction by subtracting the other fraction value 3. multiply - mutates this fraction by multiplying with the other fraction value 4. divide - mutates this fraction by dividing by the other fraction value 5. tostring - represents the fraction in a form of 'numerator/denominator" 6. compareTo - returns the following values 1. O when this fraction is equal with the other fraction 2. 1 when this fraction is greater than the other fraction 3. -1 when this fraction is less than the other fraction Example fraction1 = 1/2 fraction2 = 3/4 When fraction1.add(fraction2] is called, it will make the value of fraction 1 as 5/4. When fraction1.subtract(fraction2) is called, it will make the value of fraction 1 as -1/4.…
Creates a class StudentPhD extending the class Student with two more attributes: specialty and supervisorName; a. Add a constructor to create a StudentPhd b. Add a display method: display need to override (polymorphism) the previous display method of Student class;

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