client/server для android phone <-> pc на java

package com.pcToDroid;
 
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import java.net.Socket;
import java.net.UnknownHostException;
 
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
 
import android.app.Activity;
import android.os.Bundle;
 
public class ClientActivity extends Activity 
{
    EditText textOut;
    TextView textIn;
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        
        textOut = (EditText)findViewById(R.id.textout);
        Button buttonSend = (Button)findViewById(R.id.send);
        textIn = (TextView)findViewById(R.id.textin);
        buttonSend.setOnClickListener(buttonSendOnClickListener);
     }
 
    Button.OnClickListener buttonSendOnClickListener = new Button.OnClickListener()
    {
   //@Override
    public void onClick(View arg0)
    {
     // TODO Auto-generated method stub
     Socket socket = null;
     DataOutputStream dataOutputStream = null;
     DataInputStream dataInputStream = null;
 
     try {
      socket = new Socket("46.241.185.36", 8888);
      dataOutputStream = new DataOutputStream(socket.getOutputStream());
      dataInputStream = new DataInputStream(socket.getInputStream());
      dataOutputStream.writeUTF(textOut.getText().toString());
      textIn.setText(dataInputStream.readUTF());
     } catch (UnknownHostException e) {
      // TODO Auto-generated catch block
      e.printStackTrace();
     } catch (IOException e) {
      // TODO Auto-generated catch block
      e.printStackTrace();
     }
     finally{
      if (socket != null){
       try {
        socket.close();
       } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
       }
      }
 
      if (dataOutputStream != null){
       try {
        dataOutputStream.close();
       } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
       }
      }
 
      if (dataInputStream != null){
       try {
        dataInputStream.close();
       } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
       }
      }
     }
    }};
    }

import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import java.net.ServerSocket;
import java.net.Socket;
 
 
public class MyServer {
 
 public static void main(String[] args){
  ServerSocket serverSocket = null;
  Socket socket = null;
  DataInputStream dataInputStream = null;
  DataOutputStream dataOutputStream = null;
  
  try {
   serverSocket = new ServerSocket(8888);
   System.out.println("Listening :8888");
  } catch (IOException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  }
  
  while(true){
   try {
   System.out.println("mtav ... !");
    socket = serverSocket.accept();
    System.out.println("socket" + socket);
    dataInputStream = new DataInputStream(socket.getInputStream());
    dataOutputStream = new DataOutputStream(socket.getOutputStream());
    System.out.println("ip: " + socket.getInetAddress());
    System.out.println("message: " + dataInputStream.readUTF());
    dataOutputStream.writeUTF("Hello!");
   } catch (IOException e) {
    // TODO Auto-generated catch block
    e.printStackTrace();
   }
   finally{
    if( socket!= null){
     try {
      socket.close();
     } catch (IOException e) {
      // TODO Auto-generated catch block
      e.printStackTrace();
     }
    }
    
    if( dataInputStream!= null){
     try {
      dataInputStream.close();
     } catch (IOException e) {
      // TODO Auto-generated catch block
      e.printStackTrace();
     }
    }
    
    if( dataOutputStream!= null){
     try {
      dataOutputStream.close();
     } catch (IOException e) {
      // TODO Auto-generated catch block
      e.printStackTrace();
     }
    }
   }
  }
 }
}