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Kathy Sierra's SCJP&D line numbering

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I'm not sure whether this kind of thing appears on the actual exam, but I was a bit concerned about some of the questions in this book from Osborne Cert. Press. In several sample questions line numbering starts at 1, but there is no class definition etc..
In these cases I would say that compilation fails, since in other places, code snippets seem to start at some arbitrary number (which I assumed to mean that the necessary definitions are simply not shown). Is this an oversight in the book, or is it possible that on the actual exam, a code snippet can start at line 1, jump straight into code, and still compile?
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Jim -
I thought that with the newest printing we'd caught all of those - if not, sorry! In any case, on the real exam those problems won't crop up - if a code example starts with line 1 on the real exam, it will be a complete file. The real exam has lots of ways to try to trick you, but that isn't one of them .
- Bert
It is sorta covered in the JavaRanch Style Guide.
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