From 48e44e5d1154224351edb6ba8179021a2ceff406 Mon Sep 17 00:00:00 2001
From: "Norbraten, Terry" <tdnorbra@nps.edu>
Date: Thu, 25 Jul 2019 10:22:07 -0700
Subject: [PATCH] use try w/ resources
---
.../src/TcpExamples/TcpExample1Telnet.java | 35 ++++++++++---------
1 file changed, 18 insertions(+), 17 deletions(-)
diff --git a/examples/src/TcpExamples/TcpExample1Telnet.java b/examples/src/TcpExamples/TcpExample1Telnet.java
index 074e545611..7811aef19b 100644
--- a/examples/src/TcpExamples/TcpExample1Telnet.java
+++ b/examples/src/TcpExamples/TcpExample1Telnet.java
@@ -43,32 +43,33 @@ public class TcpExample1Telnet
// It returns a Socket object when the connection occurs.
ServerSocket serverSocket = new ServerSocket(2317);
- // The Socket object represents the connection between
- // the server and client, including a full duplex connection
- Socket clientConnection = serverSocket.accept();
-
// Use Java io classes to write text (as opposed to
// unknown bytes of some sort) to the client
- OutputStream os = clientConnection.getOutputStream();
- PrintStream ps = new PrintStream(os);
-
- ps.println("This client response was written by server TcpExample1."); // to remote clientnc
- System.out.println("This server response was written by server TcpExample1."); // to server console
- // "flush()" in important in that it forces a write
- // across what is in fact a slow connection
- ps.flush();
-
- clientConnection.close();
+ // The Socket object represents the connection between
+ // the server and client, including a full duplex connection
+ try (Socket clientConnection = serverSocket.accept()) {
+ // Use Java io classes to write text (as opposed to
+ // unknown bytes of some sort) to the client
+ OutputStream os = clientConnection.getOutputStream();
+ PrintStream ps = new PrintStream(os);
+
+ ps.println("This client response was written by server TcpExample1."); // to remote clientnc
+ System.out.println("This server response was written by server TcpExample1."); // to server console
+
+ // "flush()" in important in that it forces a write
+ // across what is in fact a slow connection
+ ps.flush();
+ }
System.out.println("TcpExample1 completed successfully.");
}
catch(IOException e)
{
- System.out.println("Problem with TcpExample1Telnet networking:"); // describe what is happening
- System.out.println("Error: " + e);
+ System.err.println("Problem with TcpExample1Telnet networking:"); // describe what is happening
+ System.err.println("Error: " + 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 programs using this port!");
+ System.err.println("*** Be sure to stop any other running instances of programs using this port!");
}
}
}
--
GitLab