jshell> String s = "A!\rB!"
B!"=> "A!

jshell> String s = "A!\rFOOOOOOOOOOOOOOOOOO"
FOOOOOOOOOOOOOOOOOO"

It seems when printing Strings, \r is treated literally as a carriage
return signal to the shell, which means the next char in the string
is printed from the beginning of the current line.

I'm a bit torn: while it's nice that \n (or whichever is native) is
printed as a new line, maybe it's best (and least bug-prone) to simply
escape all control characters?

jshell> String s = "A!\nFOOOOOOOOOOOOOOOOOO"
s ==> "A!
FOOOOOOOOOOOOOOOOOO"

vs

jshell> String s = "A!\nFOOOOOOOOOOOOOOOOOO"
s ==> "A!\nFOOOOOOOOOOOOOOOOOO"