Java の PriorityQueue を使用して要素の優先順位を管理するにはどうすればよいですか?

import java.util.Comparator;

public class StringLengthComparator implements Comparator<String> {
    @Override
    public int compare(String s1, String s2) {
        if (s1.length() < s2.length()) {
            return -1;
        }
        if (s1.length() > s2.length()) {
            return 1;
        }
        return 0;
    }
}

import java.util.PriorityQueue;

public class PQDemo {
    public static void main(String[] args) {
        PriorityQueue<String> queue = new PriorityQueue<>(10, new StringLengthComparator());
        queue.add("short");
        queue.add("very long indeed");
        queue.add("medium");
        while (!queue.isEmpty()) {
            System.out.println(queue.remove());
        }
    }
}

short
medium
very long indeed