The ability to create classes with more specific attributes and methods that share the properties and methods of existing classes is referred to as: Abstraction Polymorphism Typecasting Inheritance
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- Making sure that encapsulation is not violated (i.e., instance variables must be private); design an inheritance hierarchy of classes Car, Truck, and Vehicle based on the following description. Car is a Vehicle. Truck is a Vehicle. (a) Definition of class Vehicle Instance variables: year that holds the year of vehicle (int) make that holds the make of vehicle (string) Methods: a default constructor with no arguments. a second constructor that accepts the Vehicle's year and the make as arguments. These values should be assigned to the object's instance variables: year and make. A copy constructor that accepts an existing vehicle object reference as argument and copies the values of instance variables to the newly created object. Accessor methods (getYear() and getMake()) that get the values of instance variables. Mutator methods (setYear(int) and setMake(String)) that set the values of instance variables. toString() should return a…___________ is an Object-Oriented programming feature that allows you to define new classes from existing classes. 1 Overriding 2 Overloading 3 Inheritance 4 PolymorphismIf you are designing an application for a car dealership, you will create a Vehicle parent class and then extend the class into Car, Truck, SUV child classes. The Vehicle class will have the general attributes and behaviors. Then, you only need to code the specific differences in the child classes. Give us an example of objects that might have similar attributes and behaviors but enough differences to warrant an inheritance relationship. Then, explain the relationship and teach your classmates about inheritance.
- Classes – Write a class to represent a AlternativeEnergyCar. Select the fields and methods that fit the modeling of an alternative energy car. Make sure to include code for the constructors, set/get methods, a toString() method.Develop the ‘Shape’ application such that: ‘Rectangle’, ‘Ellipse’, and ‘Triangle’ classes inherit from the ‘Shape’ class. Develop the ‘Square’ and ‘Circle’ class where ‘Square’ inherits from ‘Rectangle’ and‘Circle’ inherits from ‘Ellipse’. ‘Triangle’ has no derived class. For each class, implement the overridden methods ‘draw’, ‘move’, and ‘erase’. Eachmethod should only have an output statement such as “Rectangle – draw method”that will be displayed when the method is invoked. Implement the default constructors for each class with a corresponding message tobe displayed when invoked. No initializations are required; that is, the outputmessage will be the only executable statement in the constructors. Do not implement any other methods for these classes ( i.e., ‘toString’, ‘equals’,getters and setters ). Implement a ‘ShapeTest’ class which will instantiate an object of each class. Exercise each of the ‘draw’, ‘move’, and ‘erase’ methods of each class Remember to make sure that…Develop the ‘Shape’ application such that: ‘Rectangle’, ‘Ellipse’, and ‘Triangle’ classes inherit from the ‘Shape’ class. Develop the ‘Square’ and ‘Circle’ class where ‘Square’ inherits from ‘Rectangle’ and‘Circle’ inherits from ‘Ellipse’. ‘Triangle’ has no derived class. For each class, implement the overridden methods ‘draw’, ‘move’, and ‘erase’. Eachmethod should only have an output statement such as “Rectangle – draw method”that will be displayed when the method is invoked. Implement the default constructors for each class with a corresponding message tobe displayed when invoked. No initializations are required; that is, the outputmessage will be the only executable statement in the constructors. Do not implement any other methods for these classes ( i.e., ‘toString’, ‘equals’,getters and setters ). Implement a ‘ShapeTest’ class which will instantiate an object of each class. Exercise each of the ‘draw’, ‘move’, and ‘erase’ methods of each class Remember to make sure that…
- An interface is a collection of _______ that a class can implementln OOP perspective, it is nothing but an instance of a class that contains real values instead of variables.A.MethodB.VariableC.ClassD.ObjectEmploying inheritance reduces errors because ____________ .a. the new classes have access to fewer data fieldsb. the new classes have access to fewer methodsc. you can copy and paste methods that you already createdd. many of the methods you need have already been used and tested
- using c++ oop !!! kindly need help asap. Implement the shape, rectangle, and square classes with components as shown and the following functionality: Each constructor and destructor prints a message to the screen that it is being called in each class implement the area() method that calculates the area of the figure (for the Shape class you can return 0) Example Constructor shape: Rectanleeeeeee Rectangle constructor 232.5 Rectanleeeeeee Eeeeeeee Rectangle destructor Shape destructor Constructor shape: Squareeeee Rectangle constructor Square constructor Squareeeee AAAaaaa 105.165 Square destructor Rectangle destructor Shape destructor // main.cpp : Defines the entry point for the application.// #include "main.h"using namespace std; int main(void) {{rectangle rec("Rectanleeeeeee", 10, 23.25);std::cout << rec.area() << std::endl;std::cout << rec.get_name() << std::endl;rec.set_name("Eeeeeeee");std::cout << rec.get_name() << std::endl;} {square…Using Java - Creating an Abstract Class Shape II Create an abstract class "Shape" with the following specifications: an abstract method "area()" of return type double an abstract method "perimeter()" of return type double. Put your code in a Java source file named "Shape.java." I. Create a class "Rectangle" that extends the Shape class with the following specifications: Attributes: width, length Constructor: Implement a parameterized constructor needed initialize the data. toString: Implement a "toString" method that prints out the area and perimeter. Implement methods to compute the area and perimeter. II. Create a class "Circle" that extends the Shape class with the following specifications: Attributes: radius Constructor: Implement a parameterized constructor to initialize the data. toString: Implement a "toString" method that prints out the area and perimeter. Implement methods to compute the area and perimeter. III. Create a class "Triangle" that extends the Shape class…add a class to package that represents your new drivable type. That type should be something that is capable of being driven (speeding up and slowing down) and therefore a perfect candidate for a class that implements the actions in the Drivable interface.
