Quicksort in just a few lines of Java

Qsort

#!/usr/bin/java --source 21

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
import java.util.stream.Collectors;
import java.util.stream.IntStream;
import java.util.stream.Stream;

public class Qsort {
    private static final Logger logger = Logger.getLogger(Qsort.class.getName());
    private static final List<Integer> digits = IntStream.range(0, 100).boxed().collect(Collectors.toList());

    public static void main(final String[] args) {
        Collections.shuffle(digits);
        logger.log(Level.INFO, "Original digits: {0}", digits);
        logger.log(Level.INFO, "Sorted digits: {0}", Qsort.sort(digits));
    }

    public static List<Integer> sort(final List<Integer> list) {
        if ( list.isEmpty() ) {
            return list;
        }

        final int pivot = list.get(0);

        final var less = list.stream().skip(1).filter(i -> i <= pivot).toList();
        final var greater = list.stream().skip(1).filter(i -> i > pivot).toList();

        final var result = new ArrayList<Integer>(list.size());

        result.addAll(sort(less));
        result.add(pivot);
        result.addAll(sort(greater));

        return result;
    }
}

/*
    Output:
    
    Jan 21, 2025 8:08:16 PM Qsort main
    INFO: Original digits: [19, 14, 9, 2, 37, 12, 3, 35, 11, 36, 16, 31, 44, 45, 80, 20, 76, 55, 73, 46, 1, 86, 64, 87, 61, 85, 66, 90, 26, 62, 0, 38, 89, 69, 67, 34, 21, 33, 17, 50, 59, 72, 23, 27, 60, 70, 65, 57, 4, 40, 77, 39, 43, 68, 24, 81, 95, 47, 18, 28, 15, 42, 53, 30, 74, 13, 75, 58, 97, 88, 29, 78, 82, 94, 41, 8, 79, 52, 91, 56, 54, 22, 63, 93, 83, 84, 71, 32, 10, 92, 49, 7, 6, 51, 99, 5, 98, 96, 48, 25]
    Jan 21, 2025 8:08:16 PM Qsort main
    INFO: Sorted digits: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99]
*/