I'm getting the error in the subject line using Android studio 2.1.2 on Win7 x64, on the following lines:
String sep = "\\"; also with Character sep = '\\'; very strange. -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To unsubscribe from this group and stop receiving emails from it, send an email to android-developers+unsubscr...@googlegroups.com. To post to this group, send email to android-developers@googlegroups.com. Visit this group at https://groups.google.com/group/android-developers. To view this discussion on the web visit https://groups.google.com/d/msgid/android-developers/fddc5081-a5ef-4275-ad45-ee08454550fe%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
