#361 Filtering and Sorting Strings in a TreeSet

Companies:

Elesta

Themes:

JavaCollections & GenericsPractice

What will be printed?

TreeSet<String> strings = new TreeSet<>();
strings.add("Tom");
strings.add("Ann");
strings.add("Jack");
strings.add("Tom");
strings.add("Kate");

String[] s = strings.stream()
    .distinct()
    .filter(str -> str.length() == 3)
    .sorted()
    .toArray(String[]::new);

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