1 files changed, 25 insertions, 0 deletions
diff --git a/challenge-142/lubos-kolouch/java/ch-2.java b/challenge-142/lubos-kolouch/java/ch-2.java
new file mode 100644
index 0000000000..8823bd7f9d
--- /dev/null
+++ b/challenge-142/lubos-kolouch/java/ch-2.java
@@ -0,0 +1,25 @@
+import java.util.concurrent.*;
+
+public class SleepSort {
+  public static void main(String[] args) throws InterruptedException {
+    int[] nums = {3, 1, 4, 1, 5, 9, 2, 6, 5, 3, 5};
+    ExecutorService executor = Executors.newCachedThreadPool();
+
+    CountDownLatch latch = new CountDownLatch(nums.length);
+    for (final int num : nums) {
+      executor.execute(() -> {
+        try {
+          TimeUnit.SECONDS.sleep(num);
+          System.out.print(num + " ");
+        } catch (InterruptedException e) {
+          Thread.currentThread().interrupt();
+        } finally {
+          latch.countDown();
+        }
+      });
+    }
+
+    latch.await();
+    executor.shutdown();
+  }
+}