explanatory comment

examples/src/UdpExamples/UnicastUdpReceiver.java

@@ -51,7 +51,7 @@ public class UnicastUdpReceiver
             DatagramPacket receivePacket = new DatagramPacket(byteArray, byteArray.length);
             
             ByteArrayInputStream bais = new ByteArrayInputStream(byteArray);
-            DataInputStream dis = new DataInputStream(bais);
+            DataInputStream       dis = new DataInputStream(bais);
             
             boolean       isEvenParity;
             int           packetCount = 0;
@@ -102,7 +102,7 @@ public class UnicastUdpReceiver
         finally // clean up prior to exit, don't want to leave behind zombie socket
         {
             if (udpSocket != null)
-                udpSocket.close();
+                udpSocket.close(); // making sure the perhaps-scarce resource is released
             System.out.println(UnicastUdpReceiver.class.getName() + " complete."); // all done
         }
     }