كود tcp بدي احوله ل udp

السلام عليكم ورحمة الله

عندي كود tcp لنقل ملف للسيرفر

كيف احوله ل udp

ارجو المساعدة

هادا السيندر

import java.io.*;
import java.net.*;
import javax.swing.*;
import java.util.Scanner;

public class Sender
{
	//declare a ServerSocket
	private static ServerSocket serverSocket;

	public static void main(String[] args)
	{
		System.out.println("Opening port...\n");

		try
		{
			//create a ServerSocket with a port number 3000
			serverSocket = new ServerSocket(3000);
		}
		catch(IOException ioEx)
		{
			System.out.println("Unable to attach to port!");
			System.exit(1);
		}

		try
		{
			//create a new socket to connect with client and accept the connection 
			Socket link = serverSocket.accept();
			//create ObjectOutputStream that enable us to buffer array of bytes 
			ObjectOutputStream outStream = new ObjectOutputStream(link.getOutputStream());
			//creat FileInputStream to obtain input bytes from a file
			FileInputStream fileIn = new FileInputStream("image.GIF");
			//get the file length
			long fileLen =  (new File("image.GIF")).length();
			//convert the length to int
			int intFileLen = (int)fileLen;
			//create an array of byte with the file length
			byte[] byteArray = new byte[intFileLen];
			//Read bytes of data from this input stream into an array of bytes
			fileIn.read(byteArray);
			//close this file input stream
			fileIn.close();
			//write the array of byte to the buffer (ObjectOutputStream)
			outStream.writeObject(byteArray);
		}
		catch(IOException e)
		{
			System.out.println("error...");
		}
	}
}

هادا الريسيفر

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

public class Reciever
{
	public static void main(String[] args) throws Exception
	{

		try
		{
			//create a socket with the agreed port
			Socket link = new Socket("localhost",3000);
			//create ObjectOutputStream that enable us to buffer array of bytes 
			ObjectInputStream inStream = new ObjectInputStream(link.getInputStream());
			//create a array of bytes with the inputStream length (length of recieved array)
			byte[] byteArray = (byte[])inStream.readObject();
			//output stream for writing data to a File
	      	FileOutputStream outStream = new FileOutputStream("image.GIF");
	      	//Write byteArray to this file output stream
			outStream.write(byteArray);			
			//close the connection
			link.close();
		}
		catch(IOException e)
		{
			System.out.println("error...");
		}
	}
}