[[Property:title|File IO]]
[[Property:link_title|Example: File IO]]
[[Property:weight|0]]
[[Property:uuid|c6dda104-bd09-a00d-58b5-0d536e95d0c1]]
==Description==

Create a file "output.txt" containing the contents of "input.txt".


==Source==

Problem description from [http://rosettacode.org/wiki/File_IO Rosetta Code: File IO]

==Solution==

<code>
class
    APPLICATION

create
    make

feature {NONE} -- Initialization

    make
            -- Run application.
        do
            create input_file.make_open_read ("input.txt")
            create output_file.make_open_write ("output.txt")
            from

            until
                input_file.exhausted
            loop
                input_file.read_line
                output_file.put_string (input_file.last_string)
                output_file.new_line
            end
        end

feature -- Access

    input_file: PLAIN_TEXT_FILE
    output_file: PLAIN_TEXT_FILE

end
</code>