It is recommended to name the generated and hooks classes, using the following convention: XyzScanner, XyzParser, XyzHooks, for the scanner, parser, and hooks classes of a language Xyz or XYZ. For parsers for a part of a language, it is recommended to name the generated parsers XyzPartParser, for non-terminal Part of language Xyz or XYZ. Following these naming conventions ensures consistency in the naming of the classes.

It is recommended to import the packages that contain the classes used as the types of the non-terminals. For instance, import the expressions package some.long.package.name.expressions as expressions or exprs, and then use {exprs.SomeClass} as the type for a non-terminal, instead of {some.long.package.name.expressions.SomeClass}. Importing the package instead of the individual classes reduces the number of imports, and also avoids conflicts between non-terminals names and class names. For standard Java types, however, it is recommended to import the full type. For instance, import java.lang.String or java.util.List.