画像ファイルのソケット通信

import java.awt.*;
import java.awt.image.*;
import java.io.*;
import java.net.*;

import javax.imageio.ImageIO;
import javax.swing.JFrame;

public class Test implements Runnable {

    String S_PATH ="e:\\image.png";
    String C_PATH ="e:\\out.png";
    
    public void run() {
        server();
    }
    public void server() {
        try {
            ServerSocket ss = new ServerSocket(9999);
            Socket soc =ss.accept();
            BufferedOutputStream out = new BufferedOutputStream(soc.getOutputStream());
            FileInputStream in = new FileInputStream(S_PATH);
            byte[] buf = new byte[1024];
            int len = 0;
            while( (len=in.read(buf)) != -1 ) {
                out.write(buf,0,len);
            }
            out.close();
            in.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
    public void client() {
        try {
            
            Socket soc = new Socket("localhost",9999);

            BufferedInputStream in = new BufferedInputStream(soc.getInputStream());
            FileOutputStream out = new FileOutputStream(C_PATH);
            byte[] buf = new byte[1024];
            int len = 0;
            while( (len=in.read(buf)) != -1 ) {
                out.write(buf,0,len);
            }
            out.close();
            in.close();

            JFrame frame = new JFrame(){
                BufferedImage bi = ImageIO.read(new java.io.File(C_PATH));
                public void paint(Graphics g) {
                    g.drawImage(bi,0,0,bi.getWidth(),bi.getHeight(),null);
                }
            };
            frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
            frame.setSize(new Dimension(800, 600));
            frame.setVisible(true);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
    public static void main ( String args[]) {
        Thread kick = new Thread(new Test(),"server");
        kick.start();
        
        new Test().client();
    }
}