Daniel Hári :
Is there a shorthand way (may be guava or any lib) to initialize a Java List like this?
List list = MagicListUtil.newArrayList(firstElement, moreElementsList);
Olivier Grégoire : If you have arrays, use
If you have lists or other
Guava offers several possibilities
If you have arrays, use Lists.asList(...)
String first = "first";
String[] rest = { "second", "third" };
List<String> list = Lists.asList(first, rest);
If you have lists or other Iterables, use FluentIterable.of(...).append(...).toList():
String first = "first";
List<String> rest = Arrays.asList("second", "third");
List<String> list = FluentIterable.of(first).append(rest).toList();
But you can do that in Java 8 as well
Even though, it's way more verbose, but still...
With an array
String first = "first";
String[] rest = { "second", "third" };
List<String> list = Stream.concat(Stream.of(first), Arrays.stream(rest))
.collect(Collectors.toList());
With a Collection
String first = "first";
List<String> rest = Arrays.asList("second", "third");
List<String> list = Stream.concat(Stream.of(first), rest.stream())
.collect(Collectors.toList());
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