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jshell> List<String> list = #[ "a", "b", "c" ]

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jshell> /env -class-path ~/.m2/repository/com/google/guava/guava/23.0/guava-23.0.jar
|  Setting new options and restoring state.

jshell> import com.google.common.collect.*

jshell> List<String> list = ImmutableList.of("a", "b", "c")
list ==> [a, b, c]

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jshell> List<String> list = Collections.unmodifiableList(Stream.of("a", "b", "c").collect(Collectors.toList()))
list ==> [a, b, c]

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jshell> List<String> list = Collections.unmodifiableList(new ArrayList<String>() {{ add("a"); add("b"); add("c"); }});
list ==> [a, b, c]

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jshell> List<String> list = Collections.unmodifiableList(new ArrayList<>(Arrays.asList("a", "b", "c")));
list ==> [a, b, c]

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jshell> List<String> list = new ArrayList<String>()
list ==> []

jshell> list.add("a")
$2 ==> true

jshell> list.add("b")
$3 ==> true

jshell> list.add("c")

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HashSet<String> set = new HashSet<String>()
set.add("a")
set.add("b")
set.add("c")
Collections.unmodifiableSet(set)
1+1
int x = 1+1
System.out.println(x)
Thread.sleep(2000)
/vars

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1+1
int x = 1+1
System.out.println(x)
Thread.sleep(2000)
/vars
/types
/list
/help
HashSet<String> set = new HashSet<String>()
set.add("a")

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jshell> import jdk.jshell.*

jshell> JShell js = JShell.create()
js ==> jdk.jshell.JShell@c8e4bb0

jshell> List<SnippetEvent> snippets = js.eval("1+1")
snippets ==> [SnippetEvent(snippet=Snippet:VariableKey($1)#1-1 ... ,causeSnippetnullvalue=2)]

jshell> snippets.stream().map(s -> s.value()).forEach(System.out::println)
2

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jshell> /help shortcuts
|
|  shortcuts
|
|  Supported shortcuts include:
|
|  <tab>
|  		After entering the first few letters of a Java identifier,
|  		a jshell command, or, in some cases, a jshell command argument,
|  		press the <tab> key to complete the input.