import java.io.*;
class FileInputStreamAndFileOutputStream
{
    public static void main(String[] args) throws Exception {
      FileInputStream in = new FileInputStream("C:/hello.txt");
      FileOutputStream out = new FileOutputStream("C:/data.txt");
      int c;
      while ((c = in.read()) != -1) {
        out.write(c);
      }
      out.close();
      System.out.println("File is copied");
    } 
    }