If we want our classes to be open to extension, we may have to reorganize our dependencies to depend on __________ instead of concrete classes. (in Java)
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If we want our classes to be open to extension, we may have to reorganize our dependencies to depend on __________ instead of concrete classes. (in Java)
The Single Responsibility Principle (SRP)
The Open-Closed Principle (OCP)
The Liskov Substitution Principle (LSP)
The Interface Segregation Principle (ISP)
The Dependency Inversion Principle (DIP)
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- Software Requirements: • Latest version of NetBeans IDE • Java Development Kit (JDK) 8 Procedure: 1. our progras from rhFactor non-static and private. Remove the constructor with two (2) parameters. 2o upply uncapsutation Make bloodType and 2. The names of the public setter and getter methods should be: • setBloodType() • setRhFactor() getBlood Type() getRhFactor() 3. Use the setter methods to accept user input. 4. Display the values by calling the getter methods. Sample Output: Enter blood type of patient: Enter the Rhesus factor (+ or -): O+ is added to the blood bank. Enter blood type of patient: B Enter the Rhesus factor (+ or -): B- is added to the blood bank.Classes & Objects Part I DB In Java What is the purpose of Constructor Overloading? How is this related to method overloading? Provide a unique coded example of constructor overloading.Map each of the keywords on the left to the statement that describes it the best. Inheritance Class Object Polymophism Instance variable [Choose ] ✓ It is any variable that does not represent a living being. It allows properties and functions to be passed to another object when an object is deleted. It represents a blue print of an object. It is like a global variable that can be accessed in all functions of a program. It is a category to organize variables and objects in groups. It is an instance of a class. It is a programming command with a special meaning. Classes can acquire properties and functions from other classes. It is a property inside that class that exists throughout the lifetime of an object. It is used to define the relationship between classes. It is a variable of a primitive type. It is a variable that can store values of multiple types. It allows a variable of a super class type to be assigned an instance of a subclass type. It is used to describe that a class…
- Why do we use generic classes? Generic classes allows for code reuse (for different data types) Generic classes allows for the Object class (the generic data type) to be used as a field Generic classes allow for abstract class (of which there can be no instantiations) to be used as a field The compiler will automatically generate test cases based on the appropriate data typesUse JAVA - This task helps you understand how constructors work in inheritance Create a superclass, called SuperClass. Create a constructor for it. Inside the constructor, let it print “this is super class.” Create a childclass of SuperClass, called ChildClass. Create a constructor for it. Inside the constructor, let it print “this is child class.” Create a main function and create a new object for ChildClass. Observe what’s printed in console. What will happen if you have a default constructor without parameters in addition to the one with parameters?50/Project%20Work%20-%201TDR2104%20-%2020FL.pdf Part-2 (Encapsulation, Inheritance, Polymorphism) Create a Java project that demonstrates various object oriented concepts you have learned so far in this course (encapsulation, inheritance and polymorphism). To do this, create a super class and at least 2 subclasses. You can either do multilevel inheritance or hierarchical inheritance in this to complete this part-2 task. The super class will have following properties/functionalities: a) Create a total of 3 member variables for the class, selecting the appropriate data types for each field. b) Include an argument constructor in this Class, that will initialize all data fields. c) Encapsulate this Class. The two subclasses will have below properties/functionalities: a) One of the subclasses will have at least one member variable and other subclass with at least two member variables. b) Have two constructors in each subclass: One constructor for initializing only super class data Another…
- Inheritance, Polymorphism, ArrayLists, Throwing Exceptions The UML diagram below shows a set of classes designed to represent a music collection from 1995. The constructors and methods all function in the standard way, except: The equipmentRequired method should return “Record Player” or “CD Player” as appropriate.The getAlbum method of the NinetiesMusicCollection class accepts an index and returns the corresponding Album object. This method throws an IllegalArgumentException if the index is out of range. (This is the only exception you have to throw anywhere in your code.)In the NinetiesMusicCollection constructor, you can assume the ArrayList<Album> object passed as an argument is not null . Don’t worry about privacy leaks.Implement this set of classes in Java. Note the italics on the Class name “Album” and the method name “equipmentRequired” in the Album class.oop using c++ please give me full answer thanks Create a class Address which has its own information such as city, state, country. Create A constructor to initialize the value of these data members. Also create setter () , getter () for the data members . Create another class Employees which has data members such as Employee Name , Employ Id , Date_of_Birth, gender A constructor to initialize the value of these data members .Also create setter () , getter () for the data members . . Then create has a relation (Aggregation) between Employ and address. In main class set two addresses for two Employees. And display full information of Employ along with Address.Association Relationships in Java Using the revised UML Class diagram Resto Fun Final i posted, continuedeveloping the Resto Fun system by modifying class definitions Create an Order class to break the Many-To-Many relationship between Customer and Item. Thisis a Relationship Class, a class that contains information on the association between to classes.Implement the relationship WaitsOn between Waiter and Customer, knowing that therelationship indicates that this is a One-to-Many relationship mandatory in both ends, i.e., awaiter must wait on a customer and a customer must be waited on by a waiter.Implement the relationship Orders between Customer (Table) and Item, another One-to-Many,since there are many Items a Customers can order, but each Item ordered is for one customeronly.Implement the Add relationship between Order and Item. Include a method to assign the Orderto a Customer before you start adding Items to the Order! There is enough information now to implement the…
- In C++ Create a class person having 5 data members.• Name• Address• Cnic• Gender• AgeAll data members should be hidden by the use of the data hiding concept. These values will beinitialized using the child class constructor. For getting the values of these data members gettermethod will be created for all data members in the parent class i-e Person.2. Create another class Teacher that will inherit properties and functionalities from personclass. Teacher class will have experience data member and an array of subjects taught bythat particular teacher.3. Provide setter and getter methods for all data members.4. Teacher is allowed to teach at least 2 subjects.5. Perform input validation in the setSubject() function so the user will not be able to inputanything except string value.6. Default experience of the teacher will be 2 years.7. Parameterized constructor of person class will be called using the teacher classconstructor. This will initialize all the data members of the person class.8.…Activity Inheritance and Polymorphism I. PROBLEM SOLVING Perform what is being asked. Write your code on a clean sheet of paper. 1. Create two (2) classes named User and Administrator. The Administrator class should inherit from the User class and the two (2) classes should be members of the namespace named UserNamespace. Refer to the UML class diagram below for the names of the required instance variables, methods, modifiers, and their types. Use the Equals() method to compare strings. Legend User (+) - public (-) - private (#) user_id: string protected # user_password: string italicized - abstract members + User(string id, string pass) + verifyLogin(string id, string pass): bool + updatePassword(string newPassword): void Administrator admin_name: string + Administrator (string name, string id, string pass) + upatePassword (string newPassword): void + updateAdminName(string name): voidInstructions: modify the code below and add these features to this dice game: Multilevel Inheritance with polymorphism and includes at least one abstract class. Dynamic memory (new, delete) using pointers within a class. At least one template class. At least one operator overloading Add comments Program: File GamePurse.h: class GamePurse { // data int purseAmount; public: // public functions GamePurse(int); void Win(int); void Loose(int); int GetAmount(); }; File GamePurse.cpp: #include "GamePurse.h" // constructor initilaizes the purseAmount variable GamePurse::GamePurse(int amount){ purseAmount = amount; } // function definations // add a winning amount to the purseAmount void GamePurse:: Win(int amount){ purseAmount+= amount; } // deduct an amount from the purseAmount. void GamePurse:: Loose(int amount){ purseAmount-= amount; } // return the value of purseAmount. int GamePurse::GetAmount(){ return purseAmount; } File main.cpp: // include necessary…