st login: Tue Sep  8 08:18:52 on ttys007

The default interactive shell is now zsh.
To update your account to use zsh, please run `chsh -s /bin/zsh`.
For more details, please visit https://support.apple.com/kb/HT208050.
(base) MAC:Tue Sep 08:11:18:~> jshell
|  Welcome to JShell -- Version 14.0.1
|  For an introduction type: /help intro

jshell> boolean[] foo = new boolean[5];
foo ==> boolean[5] { false, false, false, false, false }

jshell> false
$2 ==> false

jshell> char[] goo = new char[5]
goo ==> char[5] { '\000', '\000', '\000', '\000', '\000' }

jshell> String[] s = new String[5];
s ==> String[5] { null, null, null, null, null }

jshell> s
s ==> String[5] { null, null, null, null, null }

jshell> s[0]
$6 ==> null

jshell> s[0].length()
|  Exception java.lang.NullPointerException
|        at (#7:1)

jshell> s.length
$8 ==> 5

jshell> s.length = 7;
|  Error:
|  cannot assign a value to final variable length
|  s.length = 7;
|  ^------^

jshell>