How to enter unicode operators from keyboard in Scala IDE?

Question

How to enter unicode operators from keyboard in Scala IDE? Operators like ⇒ and other two: <- and ->.

Answer 1

Go to Window -> Preferences -> Scala -> Formatter -> Miscellaneous, then tick "Rewrite arrow tokens"

You can then type => and it will be converted to ⇒ when you do an auto-format (Ctrl-Shift-F), and similarly for <- to ←

It doesn't seem to convert -> for some reason, though.

You may get problems (on Windows, at least) with the character encoding of the file - you may need to change this to UTF8 via the file's Properties dialog.