Laboratory Exercises – Java Lesson 5: Creating Classes and Objects 1 a . Create a class named Pizza. Data fields include String for toppings (such as “pepperoni”), an integer for diameter in inches (such as 12) and double for price (as in 13.99). Include methods to get and set values for each of these fields. b. Create a class named TestPizza that instantiates one Pizza object and demonstrates the use of the Pizza set and get methods

Laboratory Exercises – Java Lesson 5: Creating Classes and Objects 1 a . Create a class named Pizza. Data fields include String for toppings (such as “pepperoni”), an integer for diameter in inches (such as 12) and double for price (as in 13.99). Include methods to get and set values for each of these fields. b. Create a class named TestPizza that instantiates one Pizza object and demonstrates the use of the Pizza set and get methods

Programming Logic & Design Comprehensive

9th Edition

ISBN:9781337669405

Author:FARRELL

Publisher:FARRELL

Chapter11: More Object-oriented Programming Concepts

Section: Chapter Questions

Problem 1GZ

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Question 5 ( java progrmming) Create a class called myYear which includes the information below: (a) Two integer private instance variables called month and year.(b) A constructor to initialize both instance variables.(c) Getters and setters for both instance variables.(d) A method called displayYear to display variable month and year separated by “/”.(e) A test class called testYear to create instance of class myYear. In the main method, (i) Initialize myYear with 9 for month and 2020 for year.(ii) Prompt values for both variables.(iii) Call setter methods and assign values from (ii) as arguments.(iv) Call method displayYear.
Create a class called Complex for performing arithmetic with complex numbers. Complex numbershave the form realPart + imaginaryPart * i where i is √-1Write a java program to test your class. Use floating-point variables to represent the private data of theclass. Provide a constructor that enables an object of this class to be initialized when it is declared.Provide a no-argument constructor with default values in case no initializers are provided. Providepublic methods that perform the following operations:a) Add two Complex numbers: The real parts are added together and the imaginary parts are addedtogether.b) Subtract two Complex numbers: The real part of the right operand is subtracted from the realpart of the left operand, and the imaginary part of the right operand is subtracted from theimaginary part of the left operand.c) Print Complex numbers in the form (a, b), where a is the real part and b is the imaginary part Sample Output: a=(9.5 , 7.7) b)=(1.2 , 3.1) a+b=(10.7 , 10.8)…
Java Question - Based on code, which answer out of the choices "A, B, C, D, E" is correct. Question has one correct answer. Thank you. Part 2 - 10. Given the following code, which statement is true? class Water() { ... }class Juice() extends Water { ... }class Apple() { ... }class ApplePie() { Apple a1 = new Apple(); }class AppleJuice() { Apple a1 = new Apple(); Water w1 = newWater(); } A. Juice is a superclass and Water is a subclass.B. ApplePie is a superclass of Apple.C. ApplePie is a composite class that contains an instance of Apple class.D. AppleJuice is a superclass that contains an instance of Apple class and an instance of Water.E. Water is a composite class that contains an instance of Juice.5
ANSWER IN JAVA STANDARD OUTPUT: Enter·length·of·rectangle:Enter·width·of·rectangle:Area:·22.5,·Perimeter:·21.0↵ Create a class Rectangle with double attributes length and width. The default constructor should set these attributes to 1. Provide methods that calculate the rectangle's perimeter and area, as well as accessors and mutators for both data fields. The mutator methods for length and width should verify that the number being passed in is larger than 0.0 and less than 20.0 -- if it doesn't fit those criteria, the value of the field should not be changed.Write a Driver class in the same file to test your Rectangle class. It should prompt the user to enter a length and width of a rectangle, and then print out the area and perimeter of the rectangle. (Use the mutators to set the length and width of the rectangle, not the constructor.)
Question: 2Implement the design of the Chillox and Customer classes so that the following code generates the output below:print(f"It's been a good day!. \nToday, we have already served {Chillox.order_id} customers.")print("**************************************************")outlet1 = Chillox()print("1.==========================================")print("Burger Menu:")print(Chillox.menu)print("2.==========================================")outlet1.addBurger("Chicken Burger",180,"Chicken with Cheese",200)print("3.==========================================")print("Burger Menu:")print(Chillox.menu)print("4.==========================================")c1 = Customer("Samin")c1.order = "2xChicken Burger"outlet1.placeOrderof(c1)print("5.==========================================")outlet1.addBurger('Chicken Smoky BBQ Cheese',225)c2 = Customer("Rafi")c2.setOrder("2xChicken with Cheese,3xChicken Smoky BBQ…
Using classes, design an online address book to keep track of the names, addresses, phone numbers, and dates of birth of family members, close friends, and certain business associates. Your program should be able to handle a maximum of 500 entries. Define a class addressType that can store a street address, city, state, and ZIP code. Use the appropriate functions to print and store the address. Also, use constructors to automatically initialize the member variables. Define a class extPersonType using the class personType (as defined in Example 10-10, Chapter 10), the class dateType (as designed in this chapters Programming Exercise 2), and the class addressType. Add a member variable to this class to classify the person as a family member, friend, or business associate. Also, add a member variable to store the phone number. Add (or override) the functions to print and store the appropriate information. Use constructors to automatically initialize the member variables. Define the class addressBookType using the previously defined classes. An object of the type addressBookType should be able to process a maximum of 500 entries. The program should perform the following operations: Load the data into the address book from a disk. Sort the address book by last name. Search for a person by last name. Print the address, phone number, and date of birth (if it exists) of a given person. Print the names of the people whose birthdays are in a given month. Print the names of all the people between two last names. Depending on the users request, print the names of all family members, friends, or business associates.
Let’s put your knowledge into practice. Complete the following questions:1. Create a class named 'Student' with String variable 'name' and integer variable 'roll_no'. Assign the value of roll_no as '2' and that of name as"John" by creating an object of the class Student.2. Assign and print the roll number, phone number and address of two students having names "Sam" and "John" respectively by creating two objectsof class 'Student'.3. Write a program to print the area of a rectangle by creating a class named 'Area' having two methods. First method named as 'setDim' takes lengthand breadth of rectangle as parameters and the second method named as 'getArea' returns the area of the rectangle. Length and breadth ofrectangle are entered through keyboard.4. Create a class named 'PrintNumber' to print various numbers of different datatypes by creating different methods with the same name 'printn'having a parameter for each datatype.5. What is the output of this question?class Test1…
Java code please 2. More Shapes by CodeChum Admin Since we are interested with drawing in this quiz (it seems), consider a Shape object. We know that for regular shapes (like Rectangle and Circle), they have properties like area and perimeter. Let's also assume that these Shapes have color (simply a String for the purpose of this quiz) and whether the shapes are filled with this color or not (boolean). Construct a class called Shape that has color and filled as attributes. It should also have methods: area() and perimeter(). But Shape does not know how to compute for this. These methods should be defined properly in Shape and Shape must be defined accordingly as well. Define Rectangle and Circle classes. Rectangle has a length and a width, while Circle a radius. For purposes of this quiz, all these attributes are positive integers. Both Rectangle and Circle are Shapes. So you should know what to do. Implement a toString() method as well printing the information about the…
Question 1 ( Java Programming)1. Create a class called Parents with private variables of type String, mother and father, and also two private variables for their birthday year in type integer. (a) Create a constructor to initialize all four variables. (b) Create another constructor (overloading) to initialize variables mother and father only. (c) Create getters and setters for the variables. (d) Create a method called parentsAge which display your parents’ age based on the birthday year that you input in the test class. 2. Create a child class for Parents called Siblings (a) Create two variables called brother and sister of type String. (b) Create a constructor to initialize all variables including the variables from Parents class. All together there should be six number of arguments. (c) Create another constructor (overloading) that initialize all the variables including variables from Parents (minus the age). All together there should be four number of arguments. (d) Create a method…
Create a class Rectangle with parameters length, breadth, and color. Use appropriate data types andaccess specifiers. Write overloaded constructors to create objects of rectangle. First constructor takesall the three parameters. Second constructer takes two parameters length and breadth. If only oneparameter is given then user creates square of red color. Write methods to set and get the values oflength, breadth and color. Write methods to find length of the diagonal of rectangle and to display thecomplete details of rectangle with area. Create another class TestRectangle which uses allconstructors to create the different objects, uses appropriate set and get methods wherever required.Display the details of every rectangle.
Create a class Rectangle with parameters length, breadth, and color. Use appropriate data types andaccess specifiers. Write overloaded constructors to create objects of rectangle. First constructor takesall the three parameters. Second constructer takes two parameters length and breadth. If only oneparameter is given then user creates square of red color. Write methods to set and get the values oflength, breadth and color. Write methods to find length of the diagonal of rectangle and to display thecomplete details of rectangle with area. Create another class TestRectangle which uses allconstructors to create the different objects, uses appropriate set and get methods wherever required.Display the details of every rectangle. (IN JAVA LANGUAGE)
Question 14 papa.Write a Java class “ShoppingCart” and a Java tester class “ShoppingCartTestDrive” to implement the OOP class design: “ShoppingCart”. - Apply “Encapsulation” concept in your classes- Implement three methods addToCart(), removeFromCart(),checkOut() and print demo results to the screen Full explain this question and text typing work only We should answer our question within 2 hours takes more time then we will reduce Rating Dont ignore this line