Need help in Java programming.   Write the class definitions for all classes. Be sure to include all properties and two getters and setters for each class. One of the getters and setters should be for a string datatype, and one for either a numeric or Boolean data type.   At a minimum the following classes need to be defined: Customer (CustID, LastName, FirstName, Street, City, State, Zip, TaxExempt) Inventory (ItemID, Description, Cost, Selling Price, Quantity On Hand) Order Header (OrderID, CustID, OrderDate, Shipto, Amount Due) Order Detail (OrderID, Line Number, ItemID, Quantity Ordered, Selling Price, Total)

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