boolean done=false;  
               while(!done)  
               {  
                   serverString=in.readLine();  
                   if(serverString !=null)  
                      System.out.println("Server:"+serverString);  
                   System.out.print("client:");  
                   clientString=input.readLine();  
                   if(clientString.equals("bye")) done=true;  
                   if(clientString !=null)     
                   {  
                       out.println(clientString);  
                       out.flush();  
                   }     
               }  
               in.close();  
               out.close();  
           }  
           catch(Exception e)  
           {  
               System.out.println(e.getMessage());  
           }  
           finally 
           {  
               aClient.close();  
           }  
       }      
}