Tässä on joukko ChatGPT:n luomia harjoitustehtäviä.
Create a class Car with the following private attributes: string make, string model, and int year. Write a constructor to initialize these attributes and create a method void display() that prints the car's details.
Modify the Car class from Exercise 1 by adding getter and setter methods for each attribute. Ensure that only valid data can be set (e.g., the year should be greater than 1885).
In the Car class, add an overloaded constructor that only takes make and model as parameters. In this case, set the default value of year to 2020. Use this overloaded constructor to create objects.
Create a class ElectricCar that inherits from the Car class. Add a private attribute int batteryCapacity and a method void charge() to display a message that the car is charging.
In the ElectricCar class, override the display() method to include information about the battery capacity. Create a vector of Car objects that contains both Car and ElectricCar objects. Use polymorphism to call the display() method for each object.
OHJE: tässä tehtävässä kannattaa vektoriin lisätä osoittimia, eikä olioita. Se voidaan tehdä seuraavasti:
vector<unique_ptr<Car>> carList;
carList.push_back(make_unique<Car>());
carList.push_back(make_unique<ElectricCar>());
for (const auto& obj : carList) {
obj->display();
}
Jos vektoriin tallennetaan olioita, ei voida kutsua perivän luokan metodeja. for-loopissa käytetty sana auto antaa kääntäjän päätellä muuttujan tyypin sen alustuksen perusteella.
Make the display() method in the Car class a virtual function, and demonstrate how virtual functions enable runtime polymorphism by using a base class pointer to point to a derived class object and call the display() method.
Lause "using a base class pointer to point to a derived class object" tarkoittaa siis tällaista
Car *objectCar;
ElectricCar objectElectricCar;
objectCar=&objectElecticCar;
Create an abstract class Vehicle with a pure virtual function void start(). Inherit from this class to create the Car and Motorcycle classes. Implement the start() method for both derived classes.
Create a class HybridCar that inherits from both the Car class and another class FuelCar. Add an attribute int fuelTankCapacity to the FuelCar class and demonstrate how multiple inheritance works in C++.
Implement a destructor in the Car class that displays a message when a Car object is destroyed. Create and destroy objects manually in the main function to observe how destructors are called.
Add a static data member int carCount in the Car class to track the number of car objects created. Implement a static member function getCarCount() to return this value. Test the static members by creating multiple car objects.
Create two classes: Book and Library. The Book class should have:
string attributes: title and author.display() that prints the book's details.
The Library class should:
Book objects.bookCount to track the number of books.bookCount.addBook() to add a new Book to the array.displayBooks() to print all books in the library.
Task: Implement both classes and test them by creating a Library object, adding books, and displaying them.
Create three classes: Screen, Keyboard, and Laptop.
Screen should have:
float attribute size (in inches).display() to print the screen size.Keyboard should have:
string attribute layout (e.g., "QWERTY").display() to print the keyboard layout.Laptop should have:
Screen object as a member.Keyboard object as a member.display() to print both the screen and keyboard details.
Task: Implement the classes and test them by creating a Laptop object and calling its display() method.
Create three classes: Address, Person, and Company.
Address should have:
string attributes: street and city.display() to print the address.Person should have:
string attribute name.Address object as a member.name and Address.display() to print the person's name and address.Company should have:
string attribute companyName.Person object as a member (e.g., the CEO).companyName and the Person.display() to print the company's name and CEO details.
Task: Implement the classes and test them by creating a Company object and calling its display() method.
Termi "Nested" viittaa siihen, että
In the Car class, create a method void drive(int distance) that throws an exception if the distance is negative. Use try and catch blocks to handle this exception in the main function.
Huom! Friend funktio ei kuulu kurssin sisältöön. Tässä lyhyesti siitä:
Write a friend function compareCars() that compares the year attribute of two Car objects and returns the newer car. Demonstrate the use of this friend function in the main function.