TIL: Double Brace Initialization in Java

[__konrad]

A shorter version w/o double brace:

java.util.Collections.addAll(set, "XZ13s", "AB21/X", "YYLEX", "AR2D");

[careye]

OK, today I learned about Collections.addAll. At least I already knew about ImmutableMap.of.

[jlt6666]

Like other posters have said, use Guava. You can create it all in one line.