From e901ae57f573e9c538596f04bd08c297928c7bd7 Mon Sep 17 00:00:00 2001
From: brutzman <brutzman@nps.edu>
Date: Tue, 31 Jul 2018 21:15:47 -0700
Subject: [PATCH] reformat, improve exception to silence warning
---
.../TcpServer/src/tcpserver/TcpServer.java | 129 +++++++++---------
1 file changed, 61 insertions(+), 68 deletions(-)
diff --git a/projects/TcpExample3/Server/TcpServer/src/tcpserver/TcpServer.java b/projects/TcpExample3/Server/TcpServer/src/tcpserver/TcpServer.java
index 547ad93bd0..9d0ca372d1 100644
--- a/projects/TcpExample3/Server/TcpServer/src/tcpserver/TcpServer.java
+++ b/projects/TcpExample3/Server/TcpServer/src/tcpserver/TcpServer.java
@@ -4,80 +4,73 @@ 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 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.
- *
+ * 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
+ * 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.
+ *
* telnet localhost 2317
- *
- * If you're sophisticated you can contact the instructor's computer
- * while running this program.
- *
- * telnet <ipOfServersLaptop> 2317
- *
+ *
+ * If you're sophisticated you can contact the instructor's computer while
+ * running this program.
+ *
+ * telnet [ipNumberOfServerLaptop] 2317
+ *
* And have him display the socket pairs he got.
+ *
* @author mcgredo
*/
-public class TcpServer
-{
+public class TcpServer {
- public static void main(String[] args)
- {
- try
- {
- // ServerSocket waits for a connection from a client.
- // Notice that it is outside the loop; ServerSocket
- // needs to be made only once.
-
- ServerSocket serverSocket = new ServerSocket(2317);
+ @SuppressWarnings("ConvertToTryWithResources")
+ public static void main(String[] args)
+ {
+ try {
+ // ServerSocket waits for a connection from a client.
+ // Notice that it is outside the loop; ServerSocket
+ // needs to be made only once.
- // Loop, infinitely, waiting for client connections.
- // Stop the program somewhere else.
- while(true)
- {
- Socket clientConnection = serverSocket.accept(); // block until connected
- OutputStream os = clientConnection.getOutputStream();
- PrintStream ps = new PrintStream(os);
+ ServerSocket serverSocket = new ServerSocket(2317);
- ps.println("This was written by the server");
-
- // 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();
-
- int localPort = clientConnection.getLocalPort();
- int remotePort = clientConnection.getPort();
-
- // My socket pair connection looks like this, to localhost:
- // 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?
+ // Loop, infinitely, waiting for client connections.
+ // Stop the program somewhere else.
+ while (true)
+ {
+ Socket clientConnection = serverSocket.accept(); // block until connected
+ OutputStream os = clientConnection.getOutputStream();
+ PrintStream ps = new PrintStream(os);
+ ps.println("This was written by the server");
- System.out.println("Socket pair: (( " + localAddress.toString() + ", " + localPort + " ), ( " +
- remoteAddress.toString() + ", " + remotePort + " ))");
-
- // Notice the use of flush() and close(). Without
- // the close() to Socket object may stay open for
- // a while after the client has stopped needing this
- // connection. Close() explicitly ends the connection.
- ps.flush();
- clientConnection.close(); // like it or not, you're outta here!
- }
- }
- catch(Exception e)
- {
- System.out.println("problem with networking");
- }
-
- }
-
-}
\ No newline at end of file
+ // 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();
+
+ int localPort = clientConnection.getLocalPort();
+ int remotePort = clientConnection.getPort();
+
+ // My socket pair connection looks like this, to localhost:
+ // 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?
+ System.out.println("Socket pair: (( " + localAddress.toString() + ", " + localPort + " ), ( "
+ + remoteAddress.toString() + ", " + remotePort + " ))");
+
+ // Notice the use of flush() and close(). Without
+ // the close() to Socket object may stay open for
+ // a while after the client has stopped needing this
+ // connection. Close() explicitly ends the connection.
+ ps.flush();
+ clientConnection.close(); // like it or not, you're outta here!
+ }
+ }
+ catch (IOException e) {
+ System.out.println("problem with networking");
+ }
+ }
+}
--
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