Create an Association class that encapsulates two objects of differenttypes. Create a Transition class that does thesame of Association class with three objects.
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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:
Create an Association class that encapsulates two objects of different
types. Create a Transition class that does the
same of Association class with three objects.
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- Person and Customer Classes Write a class named (Person) with data attributes for a person’s name, address, and telephone number. Provide accessors/getters and mutators/setters for each attribute. Write a displayPerson() to print out the attributes of the Person. Next, write a class named (Customer) that is a subclass of the (Person) class. The (Customer) class should have a data attribute for a customer number, and a Boolean data attribute indicating whether the customer wishes to be on a mailing list. Provide accessors/getters and mutators/setters for each attribute. Write a display customer() to print out the attributes of the Customer. Demonstrate an instance of the (Customer) class in a simple program.T/F1. Interface classes cannot be extended but classes that implement interfaces can be extended.Create a class Animal and Add a protected data member named id of integer type. Add get/set methods for id data member in Animal class with public access. Also provide default constructor this should initialize id to 0. Also provide parameterized constructor and toString method. Add an abstract method tellAboutSelf method to Animal class with public access Add another abstract method speak method to Animal class. Reptile, Bird, Mammal Next create the three child classes which extends form Animal class. Add a default constructor to each of the above created class. The constructor should initialize the id data member id, Reptile, Bird and Mammal, to 1, 2 and 3 respectively also it display a message “(class Name)’s default constructor”. E.g. for Bird it says “Bird’s default constructor”. Add a parameterized constructor to each of the above created class. The constructor should initialize the id data member, Reptile, Bird and Mammal, to the specified id passed to the constructor also it…
- Create an Animal class, with attributes name, age. Create classes Dog2, Cat2, Fish2, Bird2 to inherited from Animal class. Create PetOwner2 class to test the inheritance and polymorphism. please share a screen shot of the code.Scenario:You are hired by a game development company. Your task is to create an RPG hack & slash console game. The game will have a movement system that will be based on the x, y, z coordinate system. You will need to start with creating 3 classes.1. A class that represents a player2. A class that represents an enemy3. An abstract class that contains the movement logic.Step 1:Start by creating the superclass which defines the movement system for both enemy and player. The movement system is based on the Coordinate system. Imagine an x, y, z plane, the y coordinate is used to move forward and backward in the virtual plane, x to go left and right, z to go up and down.For example, A player with coordinates x, y, z with values -5, 10, 0 represents a player -5 units to the left, 10 units forward, and 0 z units mean on the ground. (0, 0, 0) are the base units which means the player or enemy is at the start of the level.Step 2:Create a class to represent the player which is derived from…1. Create a Student class that implements the Person interface. As well as storing the students name and email, also store their course grade (e.g A, B, C) in a member variable. The grade should be accessible via a getGrade method. For the implementation of getDescription return a message along the lines of “A C grade student”, substituting the students actual grade.2. Create a Lecturer class that implements the Person interface. This class should also store the subject that the lecturer teaches. Add a getSubject method, and implement getDescription so that it returns a suitable message, e.g. “Teaches Biology”.3. Create a third class, Employee that implements the interface. This should also store the name of the department the Employee works in (available via getDepartment). Again, getDescription should return a suitable message.
- Scenario:You are hired by a game development company. Your task is to create an RPG hack & slashconsole game. The game will have a movement system that will be based on the x, y, zcoordinate system. You will need to start with creating 3 classes.1. A class that represents a player2. A class that represents an enemy3. An abstract class that contains the movement logic.Step 1:Start by creating the superclass which defines the movement system for both enemy andplayer. The movement system is based on the Coordinate system. Imagine an x, y, z plane,the y coordinate is used to move forward and backward in the virtual plane, x to go left andright, z to go up and down.For example, A player with coordinates x, y, z with values -5, 10, 0 represents a player -5units to the left, 10 units forward, and 0 z units mean on the ground. (0, 0, 0) are the baseunits which means the player or enemy is at the start of the level.Step 2:Create a class to represent the player which is derived from the…A new class safe member that would allow us to export a reference to a member Suggest a simple scheme for creating a new class SafeMember that would allow us to export a reference to a Member. The classes outside the system should be unaware of this additional class, and access the reference like a reference to a Member object. However, the reference would not allow the integrity of the data to be compromised. Remember that when designing the “Return Book with fines” use case, Member object is returned to the UserInterface to be able to display the member information such as owed fine. But this also means that the UserInterface can access all the Member methods. Your implementation of SafeMember class should prevent this.Interfaces are used to define stronger is-a relationships because one class can inherit multiple interfaces. Ture or false
- Create an interface class Figure with two member variables dim1, dim2. Create a parametrized constructor. There should be a member function called area( ), perimeter() with return type double that computes area and perimeter of an object. Derive two subclasses Rectangle and Triangle from Figure. Rectangle and Triangle doesn’t have any member function of their own, but inside their constructors they should be passing values to their super class Figure Each of these subclasses (Rectangle and Triangle) should override area( )so that it should return area of rectangle and triangle. The area for Rectangle is dim1*dim2 The area for Triangle is (dim1*dim2)/2 Also calculate perimeters for Rectangle. (hint 2(dim1 + dim2) Also calculate perimeters for Rectangle. (hint 4(dim1). Now create another class with main function create objects and display values.Object passing checklist1. Go over each member function and add the const keyword after their declaration ifthey do not modify any of the class' member variables.2. When accepting objects as parameters, prefer to pass them by reference. Add areference declarator (&) before the identifier name of an object parameter.3. If the member function does not modify the parameter, make the parameter constantby using the const keyword. apply the Object Passing Checklist. Modify food.h and volunteer.h to useobject references. Add const and & keywords in the appropriate places of the code.The Point2D should store an x and y coordinate pair, and will be used to build a new class via class composition. A Point2D has a x and a y, while a LineSegment has a start point and an end point (both of which are represented as Point2Ds). class Invariants The start and end points of a line segment should never be null Initialize these to the origin instead. Data A LineSegment has a start point This is a Point2D object All data will be private A LineSegment also has an end point. Also a Point2D object Methods Create getters and setters for your start and end points public Point2D getStartPoint() { public void setStartPoint(Point2D start) { Create a toString() function to build a string composed of the startPoint’s toString() and endPoint’s toString() Should look like “Line start(0,0) and end(1,1)” Create an equals method that determines if two LineSegments are equal public boolean equals(Object other) { if(other == null || !(other instanceof LineSegment)) return…