Java networking : Sending and Receiving file

We can transfer file from one system to another sysem useing java program. here is an example where one program will read file from local machine and sends it to receiving program. Other receiving program copy all contents reciverd from remote progam and writes it to file.

FileSender class is working as client and FileReceiver class working as server. Here , 192.168.0.1 is address of machine where FileReceiver program is running and it can be changed accourding to your machine. 1234 is port number at which server program is listening for client reque

FileSender.java

package network;
import java.io.*;
import java.net.*;
import java.util.*;
public class FileSender{
    public static void main(String ar[])throws Exception{
        Socket clientSocket=new Socket("192.168.0.2",1234);
        //InputStream in=clientSocket.getInputStream();
        OutputStream out=clientSocket.getOutputStream();
        
        //PrintStream ps=new PrintStream(out);
        
        FileInputStream fis=new FileInputStream("F://Test.java");
        int x=0;
        while(true){
            x=fis.read();
            if(x==-1)break;
            out.write(x);
        }
        out.close();
    }
}

FileReceiver.java

package network;
import java.io.*;
import java.net.*;
import java.util.*;
public class FileReceiver{
    public static void main(String ar[])throws Exception{
        ServerSocket ss=new ServerSocket(1234);
        Socket clientSocket=ss.accept();
        InputStream in=clientSocket.getInputStream();
        //OutputStream out=clientSocket.getOutputStream();
        FileOutputStream fos=new FileOutputStream("rec.txt");
        int x=0;
        while(true){
            x=in.read();
            if(x==-1)break;
            fos.write(x);
        }
        fos.close();
    }
}