When you want to work with an object, you use a variable that holds a special value known as a(n) __________ to link the variable to the object. a. union b. reference c. object linker d. data coupling
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OOPs
In today's technology-driven world, computer programming skills are in high demand. The object-oriented programming (OOP) approach is very much useful while designing and maintaining software programs. Object-oriented programming (OOP) is a basic programming paradigm that almost every developer has used at some stage in their career.
Constructor
The easiest way to think of a constructor in object-oriented programming (OOP) languages is:
When you want to work with an object, you use a variable that holds a special value
known as a(n) __________ to link the variable to the object.
a. union
b. reference
c. object linker
d. data coupling
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- In main(), prompt the user for two items and create two objects of the ItemToPurchase class. Before prompting for the second item, call scnr.nextLine(); to allow the user to input a new string.Ex: Item 1 Enter the item name: Chocolate Chips Enter the item price: 3 Enter the item quantity: 1 Item 2 Enter the item name: Bottled Water Enter the item price: 1 Enter the item quantity: 10The xxx_Student class:– Name - the name consists of the First and Last name separated by a space.– Student Id – a whole number automatically assigned in the student class– Student id numbers start at 100. The numbers are assigned using a static variable in the Student class• Include all instance variables• Getters and setters for instance variables• A static variable used to assign the student id starting at 100• A toString method which returns a String containing the student name and id in the format below:Student: John Jones ID: 101 The xxx_Course classA Course has the following information (modify your Course class):– A name– An Array of Students which contains an entry for each Student enrolled in the course (allow for up to 10 students)– An integer variable which indicates the number of students currently enrolled in the course. Write the constructor below which does the following:Course (String name)Sets courseName to nameCreates the students array of size 10Sets number of…You are required to develop a small chatting application where two or more friends can communicate each other through messages. Create a class Message which has Date date, and message (string). Provide getters/setters, constructors, toString. Create a class Friend having String name, String contact, email provide getters/setters, constructors, toString. Provide following options to the user. Add Friend (which add new friend to the Friends file) View Friends (read data from Friends file and display) Send message (This should ask for friend name and message match the friend name and write that message to the inbox file). Read messages (This show all messages form inbox on JList or Text area. Note: Create a manager class with methods use to read and write messages to “inbox” file you should write sentMessage(Friend f, Message message) method which write the messages to the file user can send as many message as he/she wants (use loop and arraylist). Write another method readMessages()…
- You are required to develop a small chatting application where two or more friends can communicate each other through messages. Create a class Message which has Date date, and message (string). Provide getters/setters, constructors, toString. Create a class Friend having String name, String contact, email provide getters/setters, constructors, toString. Provide following options to the user. Add Friend (which add new friend to the Friends file) View Friends (read data from Friends file and display) Send message(This should ask for friend name and message match the friend name and write that message to the inbox file). Read messages (This show all messages form inbox on JList or Text area. Note:Create a manager class with methods use to read and write messages to “inbox” file you should write sentMessage(Friend f,Message message) method which write the messages to the file user can send as many message as he/she wants (use loop and arraylist). Write another method readMessages()…1: Create a enum PizzaType, which has the following entries: PIZZA_TYPE_PLAIN, PIZZA_TYPE_PEPPERONI, PIZZA_TYPE_SAUSAGE, PIZZA_TYPE_VEGGIE 2: Create a class PizzaSalesBarChart, which inherits from StoreSalesBarChart. Create a addPizzaSales(enum PizzaType) method. Return different value for different types of pizza. Create it own version of StoreSalesBarChart setDailySales(String salesName). This method should create a PizzaSalesBarChart instance, generate a random pizza type value 10 times and call addPizzaSales for each pizza type value, then return the PizzaSalesBarChart instance. In JoePizzaShop's main method, instead of calling "StoreSalesBarChart.setDailySales(salesName)", call " PizzaSalesBarChart .setDailySales(salesName)" and see what happens.In this lab, you create a programmer-defined class and then use it in a C++ program. The program should create two Rectangle objects and find their area and perimeter. Instructions Ensure the class file named Rectangle.cpp is open in your editor. In the Rectangle class, create two private attributes named length and width. Bothlength and width should be data type double. Write public set methods to set the values for length and width. Write public get methods to retrieve the values for length and width. Write a public calculateArea()method and a public calculatePerimeter() method to calculate and return the area of the rectangle and the perimeter of the rectangle. Open the file named MyRectangleClassProgram.cpp. In the MyRectangleClassProgram, create two Rectangle objects named rectangle1 and rectangle2 using the default constructor as you saw in MyEmployeeClassProgram.cpp. Set the length of rectangle1 to 10.0 and the width to 5.0. Set the length of rectangle2 to 7.0 and the width to…
- Please provide JAVA source code for following assignment with proper comments. Please use basic While/for/ case/ loop for source code, I just started learning and doesn't know a lot about computer programming. 1. Employee Class Write a class named Employee that has the following fields: name. The name field references a String object that holds the employee’s name. idNumber. The idNumber is an int variable that holds the employee’s ID number. department. The department field references a String object that holds the name of the department where the employee works. position. The position field references a String object that holds the employee’s job title. The class should have the following constructors: A constructor that accepts the following values as arguments and assigns them to the appropriate fields: employee’s name, employee’s ID number, department, and position. A constructor that accepts the following values as arguments and assigns them to the appropriate…Create a class named Person that holds the following fields: two String objectsfor the person’s first and last name and a LocalDate object for the person’sbirthdate. Create a class named Couple that contains two Person objects. Create aclass named Wedding for a wedding planner that includes the date of the wedding,the names of the Couple being married, and a String for the location. Provideconstructors for each class that accept parameters for each field, and provide getmethods for each field. Then write a program that creates two Wedding objectsand in turn passes each to a method that displays all the details. Save the files asPerson.java, Couple.java, Wedding.java, and TestWedding.java.In the project you created in previous activities. Add a class. Name it Student. That class should have student name (string), student grades (array of size 3). Create a DisplayInfo() function that displays the values of the member variables in the class. In main, create an instance of that array and fill that instance with data. Call the DisplayInfo() function from main so it prints the content of the object. A screenshot showing the code in Visual Studio and the output (on the console screen). Activity 1 code #include <iostream> using namespace stdvoid main() {cout << "Welcome to my world..." << endl;system("pause");
- This is the question - Create a class named Apartment that holds an apartment number, number of bedrooms, number of baths, and rent amount. Create a constructor that accepts values for each data field. Also create a get method for each field. Write an application that creates at least five Apartment objects. Then prompt a user to enter a minimum number of bedrooms required, a minimum number of baths required, and a maximum rent the user is willing to pay. Display data for all the Apartment objects that meet the user’s criteria or No apartments met your criteria if no such apartments are available. This is the code it has given and I have done some on- public class Apartment { int aptNumber; int bedrooms; double baths; double rent; public Apartment(int num, int bdrms, double bths, double rent) { } public int getAptNumber() { return aptNumber; } public int getBedrooms() { retrun bedrooms; } public double getBaths() {…This is the question - Create a class named Apartment that holds an apartment number, number of bedrooms, number of baths, and rent amount. Create a constructor that accepts values for each data field. Also create a get method for each field. Write an application that creates at least five Apartment objects. Then prompt a user to enter a minimum number of bedrooms required, a minimum number of baths required, and a maximum rent the user is willing to pay. Display data for all the Apartment objects that meet the user’s criteria or No apartments met your criteria if no such apartments are available. This is the code I already have. It doesn't seem to like under TestApartments my apt. variable. I am unsure what to do to fix this cause it doesn't like any of my code - public class Apartment { int aptNumber; int bedrooms; double baths; double rent; public Apartment(int num, int bdrms, double bths, double rent) { //write code here aptNumber = num;…Create a class called Person that will hold information about a single individual. This class should have a data section that consists of the following: Variable Name Data Type firstName string lastName string address string The Person class should have the following mutators: setFirstName(string first); setLastName(string last); setAddress(string address); The Person class should have the following accessors: string getFirstName(); string getLastName(); string getAddress(); The Person class should have the following constructors: Person(); - default Person(string first, string last); - Set other fields to an empty string Person(string first, string last, string address); Note: You must use delegating constructors to eliminate duplicate code. Main Create an array which will hold 5 Person classes. Pass the array to a function called getPeople which will fill out the array with information about people taken from the keyboard. Create a…