Practice›Java Fundamentals›Module 10. Collections›10.3 Ordered collections

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10.3 Ordered collections — sorted distinct values

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Task

Fill in distinctSorted so that it returns every distinct word once, in alphabetical order, separated by spaces (trailing space included).

The program prints apple fig pear . One data structure does both jobs — no sorting code needed.

Your solution

import java.util.Set;
import java.util.TreeSet;

public class Main {

    public static String distinctSorted(String[] words) {
        // keep each word once, in alphabetical order

    }

    public static void main(String[] args) {
        System.out.println(distinctSorted(new String[]{"pear", "apple", "pear", "fig", "apple"}));
    }
}

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