it's in java. can you please add comments for better understanding?

thank you

Create a fleet of tractors. Add a new abstract class named Asset to your project. All tractors are Assets. All Assets have a method called Valuation(). Implement the valuation method for all tractors using the following formulas. tractors valuation = 50000 + 100 * rate loader valuation = 50000 + tractor valuation + 5000 * bucket size harvester valuation = 100000 + tractor valuation + 10000 * trailer size Then........ Create a new application class called TestFleet. Use an array to create a fleet of tractor objects. Populate the array with 3 tractors, 3 loaders and 3 harvesters. Create a method called displayFleetProfit(Tractor fleet[]). This method will have a parameter for the array of Tractors and use a loop to display the information about the tractors in a tabular format. Use a for loop display the tractor id number, the Valuation and the Rental Profit. Use the instanceof operator to record separate totalprofits for Loaders and Harvesters. Include a title line with the Company name and column headings. Display the total profits as well as the Harvester and Loader profit calculations at the bottom of the report