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I am getting java.net.UnknownHostException

Samanthi perera
Ranch Hand

Joined: Jan 08, 2010
Posts: 510
here is my socket example


when i run this programm i am getting this error


i got this example from this URL
http://java.sun.com/docs/books/tutorial/networking/sockets/readingWriting.html

Ulf Dittmer
Rancher

Joined: Mar 22, 2005
Posts: 42956
    
  73
This has nothing to do with that particular problem, but there's another one lurking: Don't println to a Socket
Samanthi perera
Ranch Hand

Joined: Jan 08, 2010
Posts: 510
what do you mean nothing to do.Still i am getting error?
Paul Clapham
Sheriff

Joined: Oct 14, 2005
Posts: 19552
    
  10

Right. You're trying to connect to a computer named "taranis" but there's no such computer in your network. Talk to the person who manages your network and ask them to explain to you the basics of how computer networks work.
Samanthi perera
Ranch Hand

Joined: Jan 08, 2010
Posts: 510
I don't have a networ here.there is only one computer.can't we check socket using localhost?
Ulf Dittmer
Rancher

Joined: Mar 22, 2005
Posts: 42956
    
  73
If you don't have a network, how do you propose to connect to another computer?
Samanthi perera
Ranch Hand

Joined: Jan 08, 2010
Posts: 510
can't we use a same machine to do this?i mean localhost
Jaikiran Pai
Marshal

Joined: Jul 20, 2005
Posts: 10425
    
175

Samanthi perera wrote:can't we use a same machine to do this?i mean localhost


echoSocket = new Socket("taranis", 7);

What is "taranis"


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Jaikiran Pai
Marshal

Joined: Jul 20, 2005
Posts: 10425
    
175

Samanthi perera wrote:

i got this example from this URL
http://java.sun.com/docs/books/tutorial/networking/sockets/readingWriting.html



You seem to have literally copied that example and did not even read what those lines of code are meant for. There's an explanation about the code on that page. It even tells what the first param "taranis" is. Have you read that?
 
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subject: I am getting java.net.UnknownHostException