Puzzlers with Character - Java Puzzlers: Traps, Pitfalls, and Corner Cases - page 42

System.out.println(c);
}
}
Once this has been done, the program will compile and run, but it's still a questionable program. It
is platform dependent for exactly the reason suggested in the puzzle. On certain platforms, such as
UNIX, it will print two complete line separators; on others, such as Windows, it won't. Although the
output may look the same to the naked eye, it could easily cause problems if it were saved in a file
or piped to another program for subsequent processing.
If you want to print two blank lines, you should invoke println twice. As of release 5.0, you can
use printf instead of println , with the format string "%n%n" . Each occurrence of the characters %n
will cause printf to print the appropriate platform-specific line separator.
Hopefully, the last three puzzles have convinced you that Unicode escapes can be thoroughly
confusing. The lesson is simple: Avoid Unicode escapes except where they are truly necessary.
They are rarely necessary.
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