Java Network Programming (6)--Implement a server to capitalize lowercase

Implement a server, through the text data we send, and then back to capitalization, to achieve a service-side interaction with the client, with over as the closing tag, the specific code is as follows:

Client:

 Packagecom.seven.tcp;ImportJava.io.BufferedReader;ImportJava.io.BufferedWriter;ImportJava.io.InputStreamReader;ImportJava.io.OutputStreamWriter;ImportJava.net.Socket; Public classtranclient { Public Static voidMain (string[] args)throwsexception{Socket Socket=NewSocket ("127.0.0.1", 10001); //text data, using a character stream, reading the keyboardBufferedReader reader =NewBufferedReader (NewInputStreamReader (system.in)); //responsible for writingBufferedWriter writer =NewBufferedWriter (NewOutputStreamWriter (Socket.getoutputstream ())); //Read return DataBufferedReader in =NewBufferedReader (NewInputStreamReader (Socket.getinputstream ())); String Line=NULL;  while(line = Reader.readline ())! =NULL){            if("Over". Equals (line)) {                 Break;            } writer.write (line);            Writer.newline ();                        Writer.flush (); System.out.println ("Server return:" +in.readline ());        } reader.close ();                        Socket.close (); }}

Service side:

 Packagecom.seven.tcp;ImportJava.io.BufferedReader;ImportJava.io.BufferedWriter;ImportJava.io.InputStreamReader;ImportJava.io.OutputStreamWriter;ImportJava.net.ServerSocket;ImportJava.net.Socket; Public classTranserver { Public Static voidMain (string[] args)throwsException {serversocket serversocket=NewServerSocket (10001); Socket Socket=serversocket.accept (); //reading DataBufferedReader reader =NewBufferedReader (NewInputStreamReader (Socket.getinputstream ())); //Write back DataBufferedWriter writer =NewBufferedWriter (NewOutputStreamWriter (Socket.getoutputstream ())); String Line=NULL;  while(line = Reader.readline ())! =NULL) {writer.write (Line.touppercase ());            Writer.newline ();        Writer.flush ();        } writer.close ();            Socket.close (); }    }

This way, you can implement lowercase capitalization, enter over to end the connection = =.

Java Network Programming (6)--Implement a server to capitalize lowercase