java - Having problems with .getInputStream() -

i trying program tcp chat server, having difficulties .getinputstream() , .getoutputstream() methods, compiler says "cannot find symbol- method .getinputstream(). here code, have not progressed far yet:

import java.net.*; import java.io.*; public class server {  public static void server (string[] args) {   serversocket ss1 = null;   dataoutputstream dos1 = null;   datainputstream dis1 = null; //setting values null   try {    ss1 = new serversocket(5000); //setting socket ss1 port 5000 , creating instance    socket clientsocket = ss1.accept(); //accepting connection request    dos1 = new dataoutputstream(ss1.getoutputstream());    dis1 = new datainputstream(ss1.getinputstream()); //creating output , input streams   }   catch (exception e){    system.err.println("error!");   }  } } 

i using bluej on windows 7, if that's problem. also, can't seem find explanations how data streams or "old-school" sockets work, if knows can those, it'd appreciated. :)

~alon.

you have call:

clientsocket.getoutputstream() clientsocket.getinputstream() 

inside dataoutput-/datainputstream constructors.