Q1: Write a complete JAVA program that carries out the following task s: Declare a class Video with the following non-static data members: v Vname (Type String). v myPrice (Type int). The class also contains the following static data members v number (Type int). Iraty The class also contains the following methods. V No_ Argument_constructor to give initial values for all data members. V Full constructor that accepts values of all data members as arguments from the user. V setN ame () method to reset the Vname of the Video. V getName () method to return the Vname of the Video. V setPrice () method to reset the myPrice of the Video. v get Price () method to return the my Price of the Video. v display () method that prints out the class data. v main () method to test the functionality of the class, asking the u ser to enter any necessary data. 3/r o CS2301 - Homework2 Note: the static data member (number) is set to 0 and it is increment by 1 when an object is instantiated. Q2: What happens w hen we write the following code in the main method: System.out.println("The v1.Vname ); video Name of v1 is System.out.println("Price of v2 is "+ v2.myPrice); What is the solution for the above problem? Jaber

Q1: Write a complete JAVA program that carries out the following task s: Declare a class Video with the following non-static data members: v Vname (Type String). v myPrice (Type int). The class also contains the following static data members v number (Type int). Iraty The class also contains the following methods. V No_ Argument_constructor to give initial values for all data members. V Full constructor that accepts values of all data members as arguments from the user. V setN ame () method to reset the Vname of the Video. V getName () method to return the Vname of the Video. V setPrice () method to reset the myPrice of the Video. v get Price () method to return the my Price of the Video. v display () method that prints out the class data. v main () method to test the functionality of the class, asking the u ser to enter any necessary data. 3/r o CS2301 - Homework2 Note: the static data member (number) is set to 0 and it is increment by 1 when an object is instantiated. Q2: What happens w hen we write the following code in the main method: System.out.println("The v1.Vname ); video Name of v1 is System.out.println("Price of v2 is "+ v2.myPrice); What is the solution for the above problem? Jaber

Programming Logic & Design Comprehensive

9th Edition

ISBN:9781337669405

Author:FARRELL

Publisher:FARRELL

Chapter11: More Object-oriented Programming Concepts

Section: Chapter Questions

Problem 8RQ

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Q2: Write a complete JAVA program that carries out the following tasks: - Declare a class TV with the following non-static data members: ✓ name ( Type String ). ✓ price ( Type double). - The class also contains the following static data members: ✓ number ( Type int ). - The class also contains the following methods: ✓ default-constructor to give initial values for all data members. ✓ constructor that accepts values of all data members as arguments. ✓ setName () method to reset the name of the TV. ✓ getName () method to return the name of the TV. ✓ setPrice () method to reset the price of the TV. ✓ getPrice () method to return the price of the TV. ✓ display () method that prints out the class data. ✓ main () method to test the functionality of the class, asking the user to enter any necessary data. Note: the static data member (number) is set to 0 and it is increment by 1 when an object is instantiated. What happens when we write the following code in the main method:…
Solve B please(A) Write a class called Course having data members: courseNum (String such as ITCS214), courseName (String such as Data Structures), credits (int), section (int). Include the following public methods in the class: Default constructor (without any parameters), constructor with 4 parameters, set and get methods for all attributes, equals and toString methods (B) Write a class called Student having following data fields: idNum (long), firstName (String), lastName (String), gender (char), email (String), coursesRegistered (ArrayList of type Course). Note that coursesRegistered is a list of type ArrayList (Java class) in which each element is of class type Course. The coursesRegistered is the list of courses in which the student is currently registered. It has following methods: Default constructor (without any parameters), constructor with 5 parameters (except for coursesRegistered), set and get methods for all attributes, equals, and printCoursesRegistered. The list…
++1.+Write a class about a book which has following properties: • isbn • price • titleIn a Test class we are supposed to create objects as below: Book b1= new Book(); Book b2= new Book(544444, “Java”); Book b3= new Book(54444444, C++, 5.6); Book b4= new Book (“Python, 7.9, 8888899988); and we are supposed to print objects with the following statement: 5. System.out.println(b3); The the output should be:“Title of the book is C++, ISBN is 54444444”, price is 5.6 TL Now complete the Book class that enable to execute statements that mentioned in the Test class. Except the 5 items that mention above, please test: 6. Test the f(n) with 2 different numbers 7. Update the price of the b4 object.8. Test the Q3 method.m..
Subject: Java Programming Hi Expert Sir, this (A, B) is one question...... please read and solve it carefully. and Don't submit the wrong answer. It's very important to me.... thank you Write a program to calculate the midpoint of two 2D coordinate points. A) Among them, the Point class represents two-dimensional coordinate points and has private member variables x and y, representing the values of the abscissa and ordinate, initialized by the constructor. B) Four methods setX (), getX (), setY (), and getY () are used to set and obtain the coordinates. In addition, a member method midPoint (Point p), which takes a Point object as a parameter, calculates the midpoint of the two coordinates and returns a new two-dimensional point. It is required to reflect the encapsulation characteristics in the program. Instantiate two two-dimensional points (4, 5) and (6, 8) in the main function of the class Test. Calculate the midpoint of the two by calling the midPoint of one of them and return…
8- In the following code, where do you find overloading and where do you findoverriding? Why?public class HumanBeing{private String name;public HumanBeing(String myName){name = myName;}public String getInfo)({return "I am a human being " ;}}public class Student extends HumanBeing{private int id;private static int nextId = 0;public Student(String theName){super(theName);id = nextId;nextId;++}public int getId() {return id;}public void setId (int theId){ this.id = theId;}public void getInfo(){System.out.println( "I am a student " );}public String getInfo(){return "I am a student " ;}public String getInfo(int num){String s = "I am a student nr: " +num;return s;}}
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.)
This program extends the earlier "Online shopping cart" program. (Consider first saving your earlier program). (1) Extend the ItemToPurchase class to contain a new attribute. item_description (string) - Set to "none" in default constructorImplement the following method for the ItemToPurchase class. print_item_description() - Prints item_description attribute for an ItemToPurchase object. Has an ItemToPurchase parameter. Ex. of print_item_description() output: Bottled Water: Deer Park, 12 oz. (2) Build the ShoppingCart class with the following data attributes and related methods. Note: Some can be method stubs (empty methods) initially, to be completed in later steps. Parameterized constructor which takes the customer name and date as parameters Attributescustomer_name (string) - Initialized in default constructor to "none"current_date (string) - Initialized in default constructor to "January 1, 2016"cart_items (list)Methodsadd_item()Adds an item to cart_items list. Has a parameter of…
Write a java program: Write the definition of a class named Employee to hold the data of the working hours of employees and their salaries in a company. The class includes the following private data members: • Name: to represent employee's name • ID: to represent employee's ID • NumberHours: an array of type integer of size 24 to save the number of hours worked by the employee during the days of the month. • Price: to represent the price per hour. Additionally, the class should include: • A constructor that takes three parameters to initialize the instance variables Name, ID and price and create the array NumberHours. • A method SetHours. The method should ask the user to enter the number of hours worked in each day (fill the array). · A method TotalAmount that returns the amount which should be paid by the company to the employee. If the total worked hours exceeds 150, the company should pay an additional bonus of 10% of the total amount. Thus, normal payment is calculated as =…
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)…
3. Write a class Student having attributes to store the following data: Name, fathers’ Name, department, degree, enrolment, seat number, marks of three subjects. Also write a class to test all methods of Student class. Add the following methods in the above class. • int getTotal() : This methods returns the total of marks • void printTotal() Prints the total marks of Student • float getPercentage() this method calculates the percentage of a student • void printPercentatge() this method prints the percentage of student • char getGrade() this method calculates and returns the grade. • void printGrade() this method prints the grade of a student. • void printInfo() This method prints all information of the student.
Consider the following class declaration and variable definitions, then answer the following questions. #include <stdio.h> class A { private: class B { public: B() { x = 1; } int x; int& getx() { return x; } void print() { printf(“%d”,x); } }; private: B b; public: class C { private: int w; public: C() { w = 5; } B b; int &getw() { return w; } void print() { b.print(); printf(“%d”,w); } }; C c; void print() { b.print(); c.print(); } int& getx() { return b.getx(); } }; Assume each code snippet in each row below runs independently in a main function. For each one, say whether it's legal code or not. If it is, show the output and explain why it happens. If it’s illegal (e.g. syntax error), explain why. Try to do it without running the code, and then check and correct your answers as needed. # Code snippet Errors? (Yes or No) Output or explanation of error. 1…
this is the whole problem i did 1 to 3 im stuck at 4 Create a class called Student, with the following attributes/variables:a. studentName (String)b. studentNumber (int)sc. regYear(long)d. faculty(String)e. department(String)2. Add the following methods in Student:a. accessors and mutators for all variablesb. toString methodi. Formulate your toString so that it only shows studentName,studentNumber and faculty3. Create a class called MyFriends, with the following attributes variables:a. studentArray(Student[])4. Add the following methods in MyFriends:a. fillArrayi. Using scanner ask how many students does the user want to inputii. Capture user input for all of his friends(Of course we are assuming all your friends would be similarUWC students, go ask around and meet new friends, alsopreferably not in the same Computer Science department … ifpossible … only if possible)b. maini. Call the fillArray methodii. Count how many Computer Science studentsiii. If half or more students are…