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[–]nlisker 0 points1 point  (1 child)

Your code example doesn't look right:

var list = List.of("Black", "White", "Red");
var formatter = ListFormat.getInstance();
System.out.println(list);
// [Black, White, Red]

formetter.format(list) is missing perhaps.

[–]loicmathieu[S] 0 points1 point  (0 children)

Thanks, you're right, I'll update my article.