//build a socket.
public void connectclient() throws IOException
{
socket = new Socket("localhost", 9097);
System.out.println("connect to server on port 9097");
}
public void startstreams() throws IOException , ClassNotFoundException
{
in = socket.getInputStream();
out = socket.getOutputStream();
dos = new DataOutputStream(out);
dis = new DataInputStream(in);
writer = new OutputStreamWriter(out);
reader = new InputStreamReader(in);
breader = new BufferedReader(reader);
bwriter = new BufferedWriter (writer);
w = new PrintWriter(out, true);
}
public void writeSocketMyJson(String n) throws IOException
{
 w = new PrintWriter(out, true);
 w.println(n);
 w.flush();
 w.close();
}

massage1 = "username";
//send username that get from login form to server.
public void sendusername() throws IOException
{
 writeSocketMyJson(massage1);
}

 massage2 ="admin";
//send password that get from login form to server.
public void sendpassword() throws IOException
{
 writeSocketMyJson(massage2);
}

 //send access level to server.
 public void sendaccess(int l) throws IOException
{
  dos.writeInt(l);
  dos.flush();
}
sendaccess(21);

//build server.
public void connectserver() throws IOException
{
listener = new ServerSocket(9097);
System.out.println("Server is running on port 9097 ...");
}
//wait for new connection.
public void waitforclient() throws IOException
{
socket = listener.accept();
System.out.println("A new client connected to the server");
}
public void startstreams() throws IOException
{
in = socket.getInputStream();
out = socket.getOutputStream();
dos = new DataOutputStream(out);
dis = new DataInputStream(in);
writer = new OutputStreamWriter(out);
reader = new InputStreamReader(in);
bwriter = new BufferedWriter (writer);
breader = new BufferedReader (reader);
}
public String readSocket() throws IOException
{
    breader = new BufferedReader(reader);
    while (true)
    {
        massage = new String();
        massage = breader.readLine();
        if (massage.equals(null) == false)
        {
            break;
        }
    }
    return(massage);
  }

  //get username that client send it.
public String getusername() throws IOException, ClassNotFoundException
{
try
{
   username = new String();
   username = readSocket();
   System.out.println("the username is : " + username);
}
catch(IOException IOE)
{
        IOE.printStackTrace();//if there is an error, print it out
}
return(username);
}

//get password that client send it.
public String getpassword() throws IOException, ClassNotFoundException
{
try
{
    password = new String();
    password = readSocket();
    System.out.println("the password is : " + password);
}
catch(IOException IOE)
{
        IOE.printStackTrace();//if there is an error, print it out
}
return(password);
}

//get commend from client.
//admin or user send which commend 21-add new information 22-show                  information
public int getaccess() throws IOException
{
System.out.println("server get access : " + dis.readInt());
return(dis.readInt());
}

//build Server & Client
Server server = new Server();
Client client = new Client();

//Start Server & Client
server.connectserver();
client.connectclient();

//Server wait for new connection
server.waitforclient();

//start the Streams
server.startstreams();
client.startstreams();

client.sendusername();
String msg1 =server.readSocket();

client.sendpassword();
String msg2 =server.readSocket();

client.sendaccess();
int n = getaccess();