Adding ExecutorService files

Java/ExecutorService/ExecutorServiceExample.java

@@ -0,0 +1,31 @@
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+
+class ExampleTask implements Runnable{
+    private int id;
+
+    ExampleTask(int id){
+        this.id = id;
+    }
+
+    @Override
+    public void run() {
+        try {
+            System.out.println("Started : "+id);
+            Thread.sleep(5000);
+            System.out.println("Completed : "+id);
+        }catch(InterruptedException e){
+            e.printStackTrace();
+        }
+    }
+}
+public class ExecutorServiceExample {
+
+    public static void main(String[] args) {
+        ExecutorService service = Executors.newFixedThreadPool(2);
+        for(int i = 0; i< 10; i++){
+            service.execute(new ExampleTask(i));
+        }
+        service.shutdown();
+    }
+}