File Download

import java.io.*;
import java.net.*;


public class clientfile2
{
    public static void main(String args[])throws IOException
    { 
        ServerSocket ss=null;
        try
        {  
            ss=new ServerSocket(8081);
        }
        catch(IOException e)
        { 
            System.out.println("couldn't listen");
            System.exit(0);
        }
        Socket cs=null;
        try
        { 
            cs=ss.accept();
            System.out.println("Connection established"+cs);
        }
        catch(Exception e)
        { 
            System.out.println("Accept failed");
            System.exit(1);
        } 
        PrintWriter put=new PrintWriter(cs.getOutputStream(),true);
        BufferedReader st=new BufferedReader(new InputStreamReader(cs.getInputStream()));
        String s=st.readLine();
        System.out.println("The requested file is : "+s);
        File f=new File(s);
        if(f.exists())
        { 
            BufferedInputStream d=new BufferedInputStream(new FileInputStream(s));
            BufferedOutputStream outStream = new BufferedOutputStream(cs.getOutputStream());
            byte buffer[] = new byte[1024];
            int read;
            while((read = d.read(buffer))!=-1)
            {
                outStream.write(buffer, 0, read);
                outStream.flush();
            }
            d.close();
            System.out.println("File transfered");
            cs.close();
            ss.close();
        }  
    }  
}





import java.io.*;
import java.net.*;

class serverfile2
{
public static void main(String srgs[])throws IOException
{
    Socket s=null;
    BufferedReader get=null;
    PrintWriter put=null;
    try
    { 
        s=new Socket("192.168.23.11",8081);
        get=new BufferedReader(new InputStreamReader(s.getInputStream()));
        put=new PrintWriter(s.getOutputStream(),true);        
    }  
    catch(Exception e)
    {
        System.exit(0);
    }
    InputStreamReader get2=new InputStreamReader(s.getInputStream());
    String u,f;
    System.out.println("Enter the file name to transfer from server:");
    DataInputStream dis=new DataInputStream(System.in);
    f=dis.readLine();
    put.println(f);
    File f1=new File("E:\\output");
    FileOutputStream  fs=new FileOutputStream(f1);

    BufferedInputStream d=new BufferedInputStream(s.getInputStream());
    BufferedOutputStream outStream = new BufferedOutputStream(new  FileOutputStream(f1));
    byte buffer[] = new byte[1024];
    int read;
    while((read = d.read(buffer))!=-1)
    {
        outStream.write(buffer, 0, read);

        outStream.flush();
    }

     
    fs.close();
    System.out.println("File sent successfully");
    s.close();
    }

}