How to organize into smaller java files?

I have a class which basically connects to a database and just about all of its methods query the database and return the results. The problem (which isn't actually a problem) is that the java file is getting so big because there are literally hundreds of methods representing different queries to the database.
Does anyone has any idea how to break this class into smaller files? Is there a "include" statement of some sort that I can use to include these "sub-java" files?

Does anyone has any idea how to break this class into smaller files? Is there a "include" statement of some sort that I can use to include these "sub-java" files?Different classes would still mean that user code would need to change.
The problem (which isn't actually a problem) is that the java file is getting so big because there are literally hundreds of methods representing different queries to the database.Depending on how that is organized that isn't necessarily a problem. For instance if it did nothing but manage calls and not extraction then it isn't a terrible problem.
If not then as previously suggested you break it by functional block. The closes model to what you have would be to break it into a class per each data model entity and then either add support classes for more complex support or add to one of the matching model entities.

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