//  Filecopy.java  (c) 1998-2005 Kari Laitinen

//  http://www.naturalprogramming.com

//  2003-09-12  File created.
//  2005-05-08  Last modification.

//  In the javafilesextra folder there is a program named
//  FilecopyBetter.java which is an enhanced version of this program.

import java.util.* ;
import java.io.* ;    //  Classes for file handling.

class Filecopy
{
   public static void main( String[] not_in_use )
   {
      Scanner keyboard = new Scanner( System.in ) ;

      System.out.print( "\n This program copies text from one file"
                     +  "\n to another file. Please, give the name of"
                     +  "\n the file to be copied: " ) ;

      String name_of_file_to_be_copied  =  keyboard.nextLine() ;

      System.out.print( "\n Give the name of the duplicate file: " ) ;

      String name_of_new_duplicate_file  =  keyboard.nextLine() ;

      try
      {
         BufferedReader file_to_be_copied  =  new BufferedReader(
                         new FileReader( name_of_file_to_be_copied ) ) ;

         PrintWriter new_duplicate_file  =  new PrintWriter(
                         new FileWriter( name_of_new_duplicate_file ) ) ;

         System.out.print( "\n Copying in progress ... \n" ) ;

         int  text_line_counter  =  0 ;
         boolean  end_of_input_file_encountered  =  false ;

         while ( end_of_input_file_encountered  ==  false )
         {
            String text_line_from_file  =  file_to_be_copied.readLine() ;

            if ( text_line_from_file  ==  null )
            {
               end_of_input_file_encountered  =  true ;
            }
            else
            {
               new_duplicate_file.println( text_line_from_file ) ;

               text_line_counter  ++  ;
            }
         }

         System.out.print( "\n Copying ready. " + text_line_counter
                        +  " lines were copied. \n" ) ;
         file_to_be_copied.close() ;
         new_duplicate_file.close() ;
      }
      catch ( FileNotFoundException  caught_file_not_found_exception )
      {
         System.out.print( "\n\n  File \"" + name_of_file_to_be_copied
                           + "\" not found.\n" ) ;
      }
      catch ( IOException  caught_io_exception )
      {
         System.out.print( "\n\n  File error. Probably cannot write to \""
                           +  name_of_file_to_be_copied + "\".\n" ) ;
      }
   }
}