Many of the 70 recommendations are applicable to other modern(-ized) object-oriented languages. I read the book even though I was looking for C# tips. The sample content, which included the table of contents, showed that the book was for more than just Java coders.

By my count:
8 of the recommendations were primarily for correctness
2 were for performance
4 overlapped readability with correctness or performance
the remaining 56 were about readability and can apply to many other languages.