Java how to listen on a port?

[Fou-Lu]

Originally Posted by TestingPHP

oh, i compiled it on 15 & using 14 on my vps. (JDK).

Could you compile it for me then?

No, I use java 7. You'll should update both your JDK and JRE to Java 6.

I'm still not sure exactly what you are getting at either with it. It simply won't respond if you don't accept anything from a client and write back to it. While it can be used to determine if the application is running on that port, it makes no guarantee about the state of an application on that port.

[TestingPHP]

Originally Posted by Fou-Lu

No, I use java 7. You'll should update both your JDK and JRE to Java 6.

I'm still not sure exactly what you are getting at either with it. It simply won't respond if you don't accept anything from a client and write back to it. While it can be used to determine if the application is running on that port, it makes no guarantee about the state of an application on that port.

I know!

On my CentOS Linux VPS The mirror only download/installs jdk 1.6.0.0_25 (yum install Java)

How can I update that?

[TestingPHP]

Ok On my VPS i have this version of Java JDK: java-1.6.0-openjdk-1.6.0.0-1.25.1.10.6.el5_8.x86_64

Someone add me on msn & help me update please.

peanuthitz@hotmail.co.uk

[Fou-Lu]

Follow this: http://wiki.centos.org/HowTos/JavaOnCentOS
Go to the section on alternatives, and set the proper version of java. Then run the java -version and it should show up with the java 6.

[angelinwilliams]

You will probably need to make use of Java sockets to do the port listening.

Make a Server Socket Object at Server site and Wait till Clinet made a request

ServerSocket ss=new ServerSocket(8000);

Socket s=ss.accept(); // wait till client made request.....


And Write Client Side

Socket s=new Socket("IpAddressOfServer",8000);

for a clear concept of how server listens to clients request, have a look at this link
docs.oracle.com/javase/tutorial/networking/sockets/clientServer.html