Java version of Sleep sort

Sleepsort.java

/**
 * For fun.
 * Inspiration: http://dis.4chan.org/read/prog/1295544154
 * @author zengr
 *
 */

public class Sleepsort {

    private static int[] inputArray = { 3, 1, 2, 1, 181, 10};

    public static void main(String[] args) throws InterruptedException {
        Sleepsort ss = new Sleepsort();
        ss.sleepsort(inputArray);
    }

    public void sleepsort(int[] array) throws InterruptedException {
        for (int val : array) {
            Thread thread = new Thread(new SleepsortThread(val));
            thread.start();
        }
    }
}

class SleepsortThread implements Runnable {
    private int val;

    public SleepsortThread(int val) {
        this.val = val;
    }

    @Override
    public void run() {
        try {
            Thread.sleep(val);
            System.out.println(val);
        } catch (InterruptedException e) {
            // Oops...
        }
    }
}

Should use CountDownLatch to start all the threads at same time