diff --git a/HelloWorld/SalesSystem.java b/HelloWorld/SalesSystem.java
new file mode 100644
index 0000000..6aeae45
--- /dev/null
+++ b/HelloWorld/SalesSystem.java
@@ -0,0 +1,58 @@
+* 
+ * Copyright 2019 Amazon.com, Inc. or its affiliates. All Rights Reserved. 
+ * SPDX-License-Identifier: MIT-0 
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of this 
+ * software and associated documentation files (the "Software"), to deal in the Software 
+ * without restriction, including without limitation the rights to use, copy, modify, 
+ * merge, publish, distribute, sublicense, and/or sell copies of the Software, and to 
+ * permit persons to whom the Software is furnished to do so. 
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, 
+ * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A 
+ * PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT 
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 
+ * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 
+ */ 
+package com.company.sample.application; 
+ 
+import software.amazon.awssdk.auth.credentials.DefaultCredentialsProvider; 
+import software.amazon.codeguruprofilerjavaagent.Profiler; 
+ 
+import java.text.DateFormat; 
+import java.text.SimpleDateFormat; 
+ 
+import java.util.Date; 
+import java.util.concurrent.ConcurrentHashMap; 
+ 
+public class SalesSystem { 
+ 
+    public static ConcurrentHashMap<Date, Order> orders = new ConcurrentHashMap<Date, Order>(); 
+ 
+    public static void main(String[] args) { 
+        //Start the profiler 
+        Profiler systemProfiler = 
+            Profiler.builder().profilingGroupName("<Insert the profiling group name here>") 
+            .awsCredentialsProvider(DefaultCredentialsProvider.create()) 
+            .build(); 
+ 
+        systemProfiler.start(); 
+ 
+        //Start create order thread 
+        CreateOrderThread createOrderThread = new CreateOrderThread(); 
+        createOrderThread.start(); 
+ 
+        //Start create Illegal order thread 
+        CreateIllegalOrderThread createIllegalOrderThread = new CreateIllegalOrderThread(); 
+        createIllegalOrderThread.start(); 
+ 
+        //Start list order thread 
+        ListOrderThread listOrderThread = new ListOrderThread(); 
+ 
+        DateFormat currentDateFormat = new SimpleDateFormat("dd MMM yyyy"); 
+        listOrderThread.setDate(currentDateFormat.format(new Date())); 
+ 
+        listOrderThread.start(); 
+    } 
+}