Java programming, assignment help

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Assignment 8 (polymorphism):
1. Repeat the in-class project with any theme (perhaps vehicles or stellar objects), but make it much more complex,
2. Include at least 4 total levels, with each level having at least twice the subclasses as the level above it,
3. Include at least one attribute in a superclass that is likely to be common to each of its subclasses (vehicles have some
form of fuel, wheeled vehicles have a number of wheels, aircraft generally have a maximum altitude and some
distinguishing form of flight such as a propeller, jet, or rocket),
4. Create an array of instances for each level as in the in-class project,
5. Print the data in an organized way, being sure to show the whole list of instances that could be in a given classification.