While developing GUI with Java FX , I seem to get different results with System.getProperty("line.separator"); and "\n" during writing to a file or getting data from internet. What basically is the difference ?
System.getProperty("line.separator") returns the OS dependent line separator.
On Windows it returns "\r\n", on Unix "\n". So if you want to generate a file with line endings for the current operating systems use System.getProperty("line.separator") or write using a PrintWriter.
on the Windows platform, System.getProperty("line.separator") is "\r\n", "\n" (Linux and MacOS X), "\r" (MacOS 9 and older)
System.getProperty("line.separator") is platform dependent:
- "\n" on UNIX style machines
- "\r\n" on Windows machines
Whereas "\n" is only "\n".
«\n» is the line separator for most operating systems such as Linux/Unix. To ensure the compatibility with any operating system, query this value with System.getproperty
来源：https://stackoverflow.com/questions/36796136/difference-between-system-getpropertyline-separator-and-n