ease of modification for destination host

examples/src/TcpExamples/TcpExample4Client.java

@@ -15,7 +15,8 @@ import java.net.*;
  */
 public class TcpExample4Client 
 {
-    static int MAX_LOOP_COUNT = 4;
+    static String DESTINATION_HOST = "localhost";
+    static int    MAX_LOOP_COUNT   = 4;
     
     public static void main(String[] args) 
     {
@@ -37,7 +38,7 @@ public class TcpExample4Client
 				long startTime = System.currentTimeMillis();
 
                 // open a socket for each loop
-				Socket socket = new Socket("localhost", 2317);
+				Socket socket = new Socket(DESTINATION_HOST, 2317);
 
 				// Setup.  Read the single line written by the server.
 				// We'd do things a bit differently if many lines to be read

examples/src/UdpMulticastExamples/MulticastReceiver.java

@@ -19,7 +19,7 @@ public class MulticastReceiver {
     // https://en.wikipedia.org/wiki/Multicast_address
     // https://www.iana.org/assignments/multicast-addresses/multicast-addresses.xhtml
     public static final String MULTICAST_ADDRESS = "239.1.2.15";
-    public static final int DESTINATION_PORT = 1718;
+    public static final int     DESTINATION_PORT = 1718;
 
     /**
      * Time to live: how many router-decrement levels can be crossed