diff --git a/thread-pool/src/main/java/com/iluwatar/threadpool/App.java b/thread-pool/src/main/java/com/iluwatar/threadpool/App.java
index a4c1887d3..9fe16d36a 100644
--- a/thread-pool/src/main/java/com/iluwatar/threadpool/App.java
+++ b/thread-pool/src/main/java/com/iluwatar/threadpool/App.java
@@ -81,13 +81,13 @@ public class App {
     // unbounded queue. At any point, at most nThreads threads will be active processing
     // tasks. If additional tasks are submitted when all threads are active, they will wait
     // in the queue until a thread is available.
-    ExecutorService executor = Executors.newFixedThreadPool(3);
+    var executor = Executors.newFixedThreadPool(3);
 
     // Allocate new worker for each task
     // The worker is executed when a thread becomes
     // available in the thread pool
     for (int i = 0; i < tasks.size(); i++) {
-      Runnable worker = new Worker(tasks.get(i));
+      var worker = new Worker(tasks.get(i));
       executor.execute(worker);
     }
     // All tasks were executed, now shutdown