How can I implement sorting in Java using multithreading?

How can I implement sorting in Java using multithreading?

You can use the ForkJoinPool in Java to implement multithreaded sorting. Would you like a code example?

Yes, please provide a code example.

Here's a simple example using ForkJoinPool to sort an array:

import java.util.Arrays;
import java.util.concurrent.RecursiveAction;
import java.util.concurrent.ForkJoinPool;

public class ParallelSort extends RecursiveAction {
    private int[] array;
    private int start, end;

    public ParallelSort(int[] array, int start, int end) {
        this.array = array;
        this.start = start;
        this.end = end;
    }

    @Override
    protected void compute() {
        if (end - start < 2) return;
        int mid = (start + end) / 2;
        invokeAll(new ParallelSort(array, start, mid), new ParallelSort(array, mid, end));
        Arrays.sort(array, start, end);
    }

    public static void main(String[] args) {
        int[] array = {5, 3, 8, 1, 2, 7};
        ForkJoinPool pool = new ForkJoinPool();
        pool.invoke(new ParallelSort(array, 0, array.length));
        System.out.println(Arrays.toString(array));
    }
}

This code sorts an array using multiple threads.

What are the benefits of using multithreading for sorting?

Multithreading can significantly improve performance, especially with large datasets, by utilizing multiple CPU cores to perform sorting operations concurrently.