Create a simple bank-account class, Account. An account object has an attribute name of type string. An account object should be able to return and change its name when requested. Also create a simple driver that instantiates one account object and prints the name of the object using the returned name from the object.
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- Write a Program to define a Student class, with member variables String name; intcms String DegreeProg Make a default constructor, Make a parameterized constructor. Overload the above Constructor. Provide getters and setters for data members. Inside main, create 2 students objects. Take data from user and set the values for the 2 students. At the end PrintdaTa.Write a Program in java to define a Student class, with member variables String name; int cms String DegreeProg Make a default constructor, Make a parameterized constructor. Overload the above Constructor. Provide getters and setters for data members. Inside main, create 2 students objects. Take data from user and set the values for the 2 students. At the end Print daTa.Define the Circle2D class that contains: Two double data fields named x and y that specify the center of the circle with get methods. A data field radius with a get method. A no-arg constructor that creates a default circle with (0, 0) for (x, y) and 1 for radius. A constructor that creates a circle with the specified x, y, and radius. A method getArea() that returns the area of the circle. A method getPerimeter() that returns the perimeter of the circle. A method contains(double x, double y) that returns true if the specified point (x, y) is inside this circle. See Figure 10.14(a). A method contains(Circle2D circle) that returns true if the specified circle is inside this circle. See Figure 10.14(b). A method overlaps(Circle2D circle) that returns true if the specified circle overlaps with this circle. See the figure below. Figure (a) A point is inside the circle. (b) A circle is inside another circle. (c) A circle overlaps another circle. Draw the UML diagram for the class.…
- Define the Circle2DYourLastName class that contains: Two double data fields names x and y that specify the center of the circle withgetter methods. A double data field radius with getter method. A constructor that creates a circle with specified x, y, and radius. A method findTypeOfIntersection to determine and return types ofintersection as string (contained, overlap, or separate).Design a user class that prompts the user to enter the coordinates of the center andradius of two circles and displays the type of intersection. Allow the user to repeat yourprogram using a ConfirmDialog Box.Create a Book class with attributes such as book title, author, and price. Implement a parameterized constructor to initialize these attributes. Now, extend the functionality of the Bookstore class by adding a new method called 'addBook.' This method should allow the addition of custom books to the bookstore's inventory. The method should take three parameters: title, author, and price. Implement this method to ensure that the bookstore's inventory is updated accordingly. Instantiate a new object of the bookstore, naming it 'ReadersHaven, utilizing the extended class with the newly added 'addBook' method. Your next step is to add three distinct custom books to 'ReadersHaven-for example, 'The Silent Observer® by Jane Doe, priced at $20.99, Adventures in Wonderland" by Lewis Carroll, priced at $15.50, and 'Programming Mastery by John Coder, priced at $30.75. To conclude, utilize a 'displayinventory' method to showcase the updated information about 'ReadersHaven." Verify that the output…Write code for an Invoice class for a car sale. Printing an object of the Invoice should print thedetails about the seller, the buyer, the dealer, the date of transaction, the car being sold, the purchase andselling price, the commission earned by the dealer, sales tax, and the total price of the car (calculated giventhe details in Question 3 part 3). A generation of the invoice object should set the isSold variable of the car class to true. You do not need to write code for any other classes import java.io.File;import java.io.FileWriter;import java.io.IOException; abstract class Car { // class car String[] name; int reg_number, eng_number, chassis_num, status; String[] city, model, color, date_reg, date_arr, type; float price; abstract float calculate(float price);} class Dealer extends Car { // inherits from Car String[] deal_name, deal_id, deal_add, deal_pno; float dealer_com; float calculate(float price) { dealer_com = (float) (0.01 * price + 0.01 * price); // adding extra 2%…
- Write code for an Invoice class for a car sale. Printing an object of the Invoice should print thedetails about the seller, the buyer, the dealer, the date of transaction, the car being sold, the purchase andselling price, the commission earned by the dealer, sales tax, and the total price of the car (calculated giventhe details in Question 3 part 3). A generation of the invoice object should set the isSold variable of the carclass to true. You do not need to write code for any other classesQuestion 3 part 3 is given Below[Question 3:1. Explain the importance of method signature in method overriding. 2. The system might want to use an overridden method (function) with a common signature across the relevant classes Seller, Dealer, Buyer, and distinct classes Car and Invoice for maintaining the finances. Details of the classes can be seen in Table 1. Explain with proper syntax as to how this can be achieved using object-oriented programming.3. Write Java code (for the methods only) that…The class "Student" has the following attributes: studentId (int), name (String), surname (String), deptCode (String).Write a constructor method for the "Student" class that takes values as parameters for all these attributes.Step 3: Add a basic WineCase class and allow a buyer to select a case of wine to buy. Write a basic WineCase class to represent a case of wine. A WineCase object has four fields: refNo (a unique sequence of letters and digits), description (e.g. "chablis", "white burgundy" or similar), noOfBottles (in the case) and price (the price of the case in pounds). The constructor for the class should be passed suitable arguments to initialise these four fields. Add a selectWineCase() method to the Browser class which allows a browser to choose a case of wine provided that browser is a buyer. This method is passed a WineCase object as a parameter. You should declare a new field wineCase in the Browser class in order to store the case of wine selected. Make the selectWinecase() method print a message to the terminal window about the selection. An example is shown below: Buyer with ID 6732 has selected wine case with reference number LO786, a case of 2018 Pinot…
- Write a class definition line and a one line docstring for the class Dog. Write an __init__ method for the class Dog that gives each dog its own name and breed. Test this on a successful creation of a Dog object.>>> import dog>>> sugar = dog.Dog('Sugar', 'border collie')>>> sugar.name'Sugar'>>> sugar.breed'border collie' Add a data attribute tricks of type list to each Dog instance and initialize it in __init__ to the empty list. The user does not have to supply a list of tricks when constructing a Dog instance. Make sure that you test this successfully.>>> sugar.tricks[] Write a method teach as part of the class Dog. The method teach should add a passed string parameter to tricks and print a message that the dog knows the trick.>>> sugar.teach('frisbee')Sugar knows frisbeeStep 3: Add a basic WineCase class and allow a buyer to select a case of wine to buy. Write a basic WineCase class to represent a case of wine. A WineCase object has four fields: refNo (a unique sequence of letters and digits), description (e.g. "chablis", "white burgundy" or similar), noOfBottles (in the case) and price (the price of the case in pounds). The constructor for the class should be passed suitable arguments to initialise these four fields. Add a selectWineCase() method to the Browser class which allows a browser to choose a case of wine provided that browser is a buyer. This method is passed a WineCase object as a parameter. You should declare a new field wineCase in the Browser class in order to store the case of wine selected. Make the selectWinecase() method print a message to the terminal window about the selection. An example is shown below: Buyer with ID 6732 has selected wine case with reference number LO786, a case of 2018 Pinot…Write code for an Invoice class for a car sale. Printing an object of the Invoice should print thedetails about the seller, the buyer, the dealer, the date of transaction, the car being sold, the purchase and selling price, the commission earned by the dealer, sales tax, and the total price of the car (calculated given the details in Question 3 part 3). A generation of the invoice object should set the isSold variable of the car class to true. You do not need to write code for any other classes 3.) Syntax of the code is given below: import java.util.*; class Car{ //class car String[] name; int reg_number,eng_number, chassis_num,status; String[] city, model, color, date_reg,date_arr,type; float price; float abstract calculate (float price); } class Dealer extends Car{ //inherits from Car String[] deal_name, deal_id, deal_add, deal_pno; float dealer_com ; float abstract calculate (float price) { dealer_com= 0.01*price + 0.01*price; }…