Comment créer une variable scratch dans JShell en Java 9 ?

<strong>C:\Users\User>jshell
| Welcome to JShell -- Version 9.0.4
| For an introduction type: /help intro

jshell> 3+7
$1 ==> 10

jshell> 9-2
$2 ==> 7

jshell> 4*4
$3 ==> 16

jshell> 12/4
$4 ==> 3

jshell> 19%5
$5 ==> 4

jshell> String.valueOf($2)
$6 ==> "7"</strong>

<strong>jshell> String nonScratch = "Tutorialspoint"
nonScratch ==> "Tutorialspoint"

jshell> </strong>

<strong>jshell> /vars
|    int $1 = 10
|    int $2 = 7
|    int $3 = 16
|    int $4 = 3
|    int $5 = 4
|    String $6 = "7"
|    String name = "Tutorialspoint"

jshell></strong>