Please could you give me the solution? Thank you.

Tractors

Modification of the Tractor project. Make a copy of your testTractor Package name it testLoader and make the following modifications and additions. Let us create a class hierarchy for tractors to use in a fleet management system. All of your classes should be in separate files within your project package. Name your package testLoader. Modify the base class named Tractor. The Tractor class will have a static attribute called Company. All tractors are owned by the same company. Create a class named Loader that inherits from Tractor. Loaders had a Bucket Size (1-5) the Bucket Size effects the RentalProfit by an additional $100-$500. You will need to Override the RentalProfit method to perform this calculation correctly. Create a fully parameterized constructor that uses a reference to super(). Override the toString to contain the base tractor information plus the Bucket Size option. Create a class called Harvester. Harvesters are must be rented for at least 20 days. Override the setter for Rental days to reflect this. Harvesters may have a tow behind trailer option (1-3) that adds $1000-$3000 to the RentalProfit() calculation. Create a fully parameterized constructor that uses a reference to super(). Override the toString to contain the base tractor information plus the trailer option. In your test drivers main() method create a Tractor, Loader and a Harvester. Using the zero parameter contructor. Then use the set methods to set all attributes. Also create a Tractor, Loader and Harvester using the parameterized contructor. Set the company name to your name. Use the toString() methods to display the information for each tractor. Be sure to display the rentalProfit() calculation in your test driver. (Comment on each statement.).