class Book1
#initialize method is like a constructor to initialize object variables
def initialize(title,author)
@title=title
@author=author
end
# declaration of show1 method to display object variable's values
def show1
puts "Book title="+@title
puts "Author name="+@author
end
end
class Book2 < Book1
def initialize
puts "Hello derived class Book2"
end
# read2 method to read input from user using gets method
def read2
puts "Enter publisher"
@publisher=gets
puts "Enter price"
@price=gets
end
def show2
puts "Publisher Name="+@publisher
puts "Price="+@price
end
end
# Super class and sub class object creation
b1=Book1.new("Harry Potter","J.k.Rowling")
b1.show1
b2=Book2.new
b2.read2
b2.show2
Create a Ruby class Book1. Each book is characterized by the instance variables authnr rf t class . For this class create the initializer and the method show1 that displays the instance variables of...
Create a Ruby class Cylinder. Each cylinder is characterized by the instance variables radius and height. For this class the initializer/constructor and the method volume that returns the volume of the cylinder. For this class the initializer/constructor and the method area that returns the area of cylinder. Create a class Can that inherits properties from the class Cylinder and adds new instance variablescontents(e.g. beer, Pepsi, Coke) and price(real number). Initialize an array of cans and write Ruby code necessary to...
A java class named Book contains: instance data for the title, author, publisher and copyright year a constructor to accept and initialize the instance data variables set and get methods a toString() method to return a formatted, multi-line description of the book Produce a child class that inherits from Book. The class is called Dictionary. Dictonary must include: instance data that describes the number of words in the dictionary a constructor that takes in all information needed to describe a...
C# programming
50 pts Question 2:2 1- Create the base class Book that has the following instance variables, constructor, and methods title (String) isbn (String) authors (String) publisher (String) edition ( int) published year (int) Constructor that takes all of the above variables as input parameters. set/get methods ToString method// that return sting representation of Book object. 2-Create the sub class New_Book that is derived from the base class Book and has the following instance variables, constructor, and methods: title...
Answer the following: 1. Create a Class Car with the following instance variables: model (String), Brand (String), maxspeed (double) Note: use encapsulation (all variables are private). (3 Marks) 2. Create a non-default constructor for Class Car which takes 3 parameters. (2 Marks) 3. Create a get and set methods for instance variable model variable only. (2 Marks) 4. Create PrintInfo() method which prints all three instance variables. (2 Marks) 5. Create a subclass GasCar with instance variable TankSize (double).. (2...
Create an abstract class Employee. Your Employee class should include the following attributes: First name (string) Last name (string) Employee id (string) Employee home street address (string) Employee home city (string) Employee home state (string) Write a constructor to initialize the above Employee attributes. Create an abstract method called earnings. Create another class HourlyEmployee that inherits from the abstract Employee class. HourEmployee must use the inherited parent class variables and add in attributes HourlyRate and HoursWorked. Your HourEmployee class should...
Create an abstract class Employee. Your Employee class should include the following attributes: First name (string) Last name (string) Employee id (string) Employee home street address (string) Employee home city (string) Employee home state (string) Write a constructor to initialize the above Employee attributes. Create an abstract method called earnings. Create another class HourlyEmployee that inherits from the abstract Employee class. HourEmployee must use the inherited parent class variables and add in attributes HourlyRate and HoursWorked. Your HourEmployee class should...
cs55(java) please. Write a class called Book that contains instance data for the title, author, publisher, price, and copyright date. Define the Book constructor to accept and initialize this data. Include setter and getter methods for all instance data. Include a toString method that returns a nicely formatted, multi-line description of the book. Write another class called Bookshelf, which has name and array of Book objects. Bookself capacity is maximum of five books. Includes method for Bookself that adds, removes,...
In Java Create a class Worker. Your Worker class should include the following attributes as String variables: Name, Worker ID, Worker Address, Worker City, Worker State Create the constructor that initializes the above worker attributes. Then make another class name HourlyWorker that inherits from the Worker class. HourlyWOrker has to use the inherited parent class variables and add in hourlySalary and billableHours. Your HourlyWorker class should contain a constructor that calls the constructor from the Worker class to initialize the...
Implement the classes in the following class diagram. The Book class implements the Comparable interface. Use implements Comparable<Book> in the class definition. Now, all book objects are instances of the java.lang.Comparable interface. Write a test program that creates an array of ten books. 1. Use Arrays.sort( Book[]l books) from the java.util package to sort the array. The order of objects in the array is determined using compareTo...) method. 2. Write a method that returns the most expensive book in the...
Project 9-2: Account Balance Calculator Create an application that calculates and displays the starting and ending monthly balances for a checking account and a savings account. --->Console Welcome to the Account application Starting Balances Checking: $1,000.00 Savings: $1,000.00 Enter the transactions for the month Withdrawal or deposit? (w/d): w Checking or savings? (c/s): c Amount?: 500 Continue? (y/n): y Withdrawal or deposit? (w/d): d Checking or savings? (c/s): s Amount?: 200 Continue? (y/n): n Monthly Payments and Fees Checking fee: $1.00 Savings...