import java.io.*;
   public class Copy {
        String from,to;
    File file;
    public Copy()
    {
        from = "c:/Earth.jpg";
        to = "d:/Documents/copyfiles/";
        try
        {
            file = new File(from);
        }
        catch(Exception e)
        {
            file = null;
            e.printStackTrace();
            System.out.println("Where is the file?");
        }
                if(file != null)
        {
                try
                {
                    BufferedInputStream inStream = new BufferedInputStream(new FileInputStream(from));
                    BufferedOutputStream outStream = new BufferedOutputStream(new FileOutputStream(to));
                    byte[] bytes=new byte[1024];
                    int count = 0;
                                        while( (count=inStream.read(bytes))!=-1 ){
                                outStream.write(bytes,0,count);
                    }
                    outStream.close();
                    inStream.close();
                }
                catch(Exception e)
                {
                    e.printStackTrace();
                }
                System.out.println("File transferred: ");
        }
        else
        {
            System.out.println("no such url");
        }
    }
    public static void main(String[] args) throws IOException {
        new Copy();
            }

}

BufferedOutputStream outStream = new BufferedOutputStream(new FileOutputStream(to));

to = "d:/Documents/copyfiles/Earth.jpg";

from = "IN/Earth.jpg";
to = "OP/Earth.jpg";

System.getProperty(user.dir);

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;


public class CopyFileUsingByteStream {

  public CopyFileUsingByteStream(String in,String out) {
    FileInputStream fis = null;
    FileOutputStream fos = null;



    try {
      fis = new FileInputStream(new File(in));

      File file = new File(out);
      if (file.exists()) {
        return;
      }
      else
        fos = new FileOutputStream(out);



      int r;
      while ((r = fis.read()) != -1) {
        fos.write((byte)r);
      }
    }
    catch (FileNotFoundException ex) {
    return;

    }
    catch (IOException ex) {
    return;

    }
    finally {
      try {

        if (fis != null) fis.close();
        if (fos != null) fos.close();
      }
      catch (IOException ex) {
      return;

      }
    }
  }
}