4

	jshell> /!
	2 + 2
	$2 ==> 4

	jshell> int z
	z ==> 0

	jshell> /-1
	int z;
	z ==> 0

	jshell> /-4
	2 + 2
	$5 ==> 4

The snippets to re-evaluate may be specified by snippet ID or ID range.
An ID range is represented as a two IDs separated by a hyphen, e.g.:  3-17
Startup and error snippets maybe used, e.g.:  s3-s9    or   e1-e4
Any number of IDs or ID ranges may be used, e.g.:  /3-7 s4 14-16 e2
See also '/help id'.

Finally, you can search backwards through history by entering Ctrl+R followed by the string to search for.