Each element of the array returned by the "read" method is a field value of the record. For e.g., first element of the array is Name of the record, the second element is Location, etc.
Javadoc style comments should be provided for any interfaces, classes, enums, and annotation types and their (public) fields/methods, etc. In DB interface also, you'll have to modify comments to be Javadoc style.
Note SCJD exam attempts to emulate real project. So often, the SCJD exam requirements instructions are not thorough and sometimes confusing. And you have to make the appropriate decisions to proceed.
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