Exercise 1 TCP communication (server give feedback)

Client

Package com.inetTes01;
 / * 
client: sending data, the server receives feedback 

 * / 

Import java.io.IOException;
 Import a java.io.InputStream;
 Import a java.io.OutputStream;
 Import the java.net.Socket; 

public  class ClientDemo {
     public  static  void main (String [] args) throws IOException {
         // create a client Socket object (Socket) 
        Socket S = new new Socket ( "192.168.18.6", 10000 ); 

        // Get the output stream, the write data 
        the OutputStream OS = S .getOutputStream (); 
        os.write ( "How are you, I'm coming on the server side.".getBytes ()); 
        

//         receiving feedback server, the data read corresponding to 
        the InputStream IS = s.getInputStream ();
         byte [] = BYS new new  byte [1024 ];
         int len = is.read (BYS); 
        the System.out .println ( "client:" + new new String (BYS, 0 , len)); 

        // release resources as is, os s are obtained by not requiring re-release 
        S.CLOSE (); 


    } 
}

server

Package com.inetTes01;
 / * 
receiving data, given feedback 
 * / 

Import java.io.IOException;
 Import a java.io.InputStream;
 Import a java.io.OutputStream;
 Import the java.net.ServerSocket;
 Import the java.net.Socket; 

public  class ServerDemo {
     public  static  void main (String [] args) throws IOException {
         // create server-side Socket object (ServerSocket) 
        ServerSocket SS = new new ServerSocket (10000 ); 


        // Get the input stream, the read data
 //        the class ServerSocket accept () listens to connect to this socket and accepts it.
        S = the Socket ss.accept ();
 //         get the input stream 
        the InputStream IS = s.getInputStream ();
 //         read data 
        byte [] = BYS new new  byte [1024 ];
         int len = is.read (BYS); 
        the System. Out.println ( "server" + new new String (BYS, 0 , len)); 


        // feedback is given, the write data corresponding to 
        the OutputStream OS = s.getOutputStream (); 
        os.write ( "data has been received" .getBytes ()); 


        // release resources 
        ss.close (); 


    } 
}