Split & Join Strings in Java

1import java.util.Scanner;
2import java.util.StringJoiner;
3
4public class Main {
5    public static void main(String[] args) {
6        Scanner sc = new Scanner(System.in);
7        System.out.print("Enter a sentence: ");
8        String s = sc.nextLine();
9
10        String[] words = s.trim().split("\\s+");
11        StringJoiner joiner = new StringJoiner("-");
12        for (String w : words) {
13            joiner.add(w);
14        }
15        System.out.println("Joined: " + joiner.toString());
16        sc.close();
17    }
18}