runnability adjustments

examples/src/TcpExamples/TcpExample1Telnet.java

@@ -67,7 +67,7 @@ public class TcpExample1Telnet
             System.out.println("*** Problem with networking: " + e);
             // Provide more helpful information to user if exception occurs due to running twice at one time
             if (e instanceof java.net.BindException)
-                System.out.println("*** Be sure to stop any other running instances of this program!");
+                System.out.println("*** Be sure to stop any other running instances of programs using this port!");
         }
     }
 }

examples/src/TcpExamples/TcpExample2ConnectionCounting.java

@@ -87,7 +87,7 @@ public class TcpExample2ConnectionCounting
             System.out.println("problem with networking: " + e);
             // Provide more helpful information to user if exception occurs due to running twice at one time
             if (e instanceof java.net.BindException)
-                System.out.println("*** Be sure to stop any other running instances of this program!");
+                System.out.println("*** Be sure to stop any other running instances of programs using this port!");
         }
     }
 }

examples/src/TcpExamples/TcpExample3Client.java

@@ -41,7 +41,7 @@ public class TcpExample3Client {
 				String serverMessage = br.readLine();
 				System.out.println("==================================================");
 				System.out.println("Now we're talking!");
-				System.out.println("The message the server sent was " + serverMessage);
+				System.out.println("The message the server sent was '" + serverMessage + "'");
 				// socket gets closed, either automatically/silently this code (or possibly by server)
 			} // end while(true)
 		} 
@@ -50,7 +50,7 @@ public class TcpExample3Client {
 			System.out.println(e);
             // Provide more helpful information to user if exception occurs due to running twice at one time
             if (e instanceof java.net.BindException)
-                System.out.println("*** Be sure to stop any other running instances of this program!");
+                System.out.println("*** Be sure to stop any other running instances of programs using this port!");
 		}
 		// program exit: tell somebody about that
 		System.out.println("client exit");

examples/src/TcpExamples/TcpExample3Server.java

@@ -4,8 +4,8 @@ import java.io.*;
 import java.net.*;
 
 /**
- * Very slightly more complex than example1. A complete copy of example 2. The
- * only thing this does differently is introduce a loop into the response, so
+ * Very slightly more complex than example1, further modifying example 2.
+ * The only thing this does differently is introduce a loop into the response, so
  * you don't have to restart the program after one response. Also, it prints out
  * the socket pair the server sees. Run the program via telnet several times and
  * compare the socket pairs.
@@ -17,7 +17,7 @@ import java.net.*;
  *
  * telnet [ipNumberOfServerLaptop] 2317
  *
- * And have him display the socket pairs he got.
+ * And have the instructor display the socket pairs received.
  *
  * @author mcgredo
  */
@@ -31,7 +31,7 @@ public class TcpExample3Server {
 			// Notice that it is outside the loop; ServerSocket
 			// needs to be made only once.
 
-			System.out.println("TcpExample3Server has really started..."); // it helps debugging to put this on console first
+			System.out.println("TcpExample3Server has started..."); // it helps debugging to put this on console first
 			ServerSocket serverSocket = new ServerSocket(2317);
 
 			// Server is up and waiting (i.e. "blocked" or paused)
@@ -45,11 +45,10 @@ public class TcpExample3Server {
 				OutputStream os = clientConnection.getOutputStream();
 				PrintStream  ps = new PrintStream(os);
 
-				ps.println("This was written by the server"); // this goes back to client!
+				ps.println("This message was produced by the server."); // this gets sent back to client!
 
-				// Print some information locally about the Socket
-				// connection. This includes the port and IP numbers
-				// on both sides (the socket pair.)
+				// Print some information locally about the Socket connection. 
+                // This includes the port and IP numbers on both sides (the socket pair).
 				InetAddress localAddress = clientConnection.getLocalAddress();
 				InetAddress remoteAddress = clientConnection.getInetAddress();
 
@@ -60,8 +59,7 @@ public class TcpExample3Server {
 				// Socket pair: (( /0:0:0:0:0:0:0:1, 2317 ), ( /0:0:0:0:0:0:0:1, 54876 ))
 				// Socket pair: (( /0:0:0:0:0:0:0:1, 2317 ), ( /0:0:0:0:0:0:0:1, 54881 ))
 				//
-				// Why is the first IP/port the same, while the second set has
-				// different ports?
+				// Why is the first IP/port the same, while the second set has different ports?
 				System.out.println("TcpExample3Server socket pair: (( " + localAddress.toString() + ", " + localPort + " ), ( "
 						+ remoteAddress.toString() + ", " + remotePort + " ))");
 
@@ -78,7 +76,7 @@ public class TcpExample3Server {
 			System.out.println("problem with networking");
             // Provide more helpful information to user if exception occurs due to running twice at one time
             if (e instanceof java.net.BindException)
-                System.out.println("*** Be sure to stop any other running instances of this program!");
+                System.out.println("*** Be sure to stop any other running instances of programs using this port!");
 		}
 	}
 }

examples/src/TcpExamples/TcpExample4HandlerThread.java

@@ -45,7 +45,7 @@ public class TcpExample4HandlerThread extends Thread
              OutputStream os = socket.getOutputStream();
               PrintStream ps = new PrintStream(os);
 
-			 final long TIMEOUT = 10000; // 10000 milliseconds = 10 seconds
+			 final long TIMEOUT = 2000; // 2000 milliseconds = 2 seconds, 10000 milliseconds = 10 seconds
 			 System.out.println("TcpExample4HandlerThread pausing for TIMEOUT=" + TIMEOUT + "ms"); // debug
              Thread.sleep(TIMEOUT); // 10 seconds