Somebody with a lot of time and addicted with java:

Define a class called Parking that has the following properties: CarPlateno of String type, Hours of parking, Parking rate per hour. Include appropriate accessors, mutators and constructor(s) as well as a method to change the carís information.

Define a class called Carpark that has the following properties:
i.An array season_parking that can allowed up to maximum 150 parking at a time.
ii.Include a method that will allow new parking information to be included into the system.
iii.Include a method to search for a car parking information.
iv.Include a method to increase the seasonal parking rate by 20%
v.Include a method to display all car details that are currently still parking.
vi.Include a method to find the average hours of parking.
vii.Include two more methods that either involved calculation, or data manipulation.

Finally define a main menu program that will allow all the parking information to be manipulated.