How to send Image over IP Socket in Java?

Hi some months ago i wrote this server-client to send images. First run the server and then the client. select an image. and then it will be sent over a socket and it will be displayed in the client side. You can send objects using the ObjectOutStream class.

Here is the code for server and client.

Server:

import java.io.*;
import java.net.*;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;

public class Server extends JFrame {

ServerSocket ser;
Socket con;
ObjectOutputStream salida;
ObjectInputStream entrada;


public Server() {

}

void ejecutar(){

try{
ser = new ServerSocket( 5700,1 );
con = ser.accept();
salida = new ObjectOutputStream(con.getOutputStream());
salida.flush();
entrada = new ObjectInputStream(con.getInputStream());
procesar();
}
catch(IOException e){}
}

void procesar(){

while(true){
try{

JFileChooser fc=new JFileChooser();
fc.setFileSelectionMode(JFileChooser.FILES_ONLY);
int r = fc.showOpenDialog(this);
File f = fc.getSelectedFile();

salida.writeObject( new ImageIcon(""+f) );


}catch(IOException e){}
}

}

public static void main(String args[]) {
Server srv = new Server();
srv.ejecutar();
}

}

Client:

import java.io.*;
import java.net.*;
import javax.swing.*;
import java.awt.event.*;
import java.awt.*;

public class Cliente extends JFrame {

JTextField tf;
Lienzo lienzo;
Socket con;
ObjectOutputStream salida;
ObjectInputStream entrada;

public Cliente(){

super("Cliente");
Container c = getContentPane();

tf = new JTextField(10);
lienzo=new Lienzo();

c.add(lienzo);
pack();
setSize(100,100);
setVisible(true);
}

void ejecutar(){

try{

con = new Socket("127.0.0.1",5700);
salida = new ObjectOutputStream(con.getOutputStream());
salida.flush();
entrada = new ObjectInputStream(con.getInputStream());

procesar();

}
catch(IOException e){}

}

void procesar() throws IOException {

try{

while(true){
ImageIcon img = (ImageIcon) entrada.readObject();
escribir(img);
}
}catch(ClassNotFoundException e){}

}

void escribir(final ImageIcon img){

SwingUtilities.invokeLater(
new Runnable(){
public void run(){
lienzo.pinta(img);
}

}
);

}

public static void main( String args[] ){
Cliente cl = new Cliente();
cl.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
cl.ejecutar();
}

class Lienzo extends JPanel{

ImageIcon img=null ;

public Lienzo(){

}

public void pinta(ImageIcon img){
this.img=img;
repaint();
}

public void paintComponent(Graphics g){

super.paintComponent(g);

if(img!=null)
img.paintIcon(this,g,10,10);

}


}

}

Thats all.