Re: creating/copying files..


"Frances" <fdr58@xxxxxxxxx> wrote in message
news:43b34463$1_3@xxxxxxxxxxxxxxx
>
> Mark Thomas wrote:
>> Frances
>>
>> You need to realise that there is a difference between creating a File
>> object, which is what the constructor does, and creating an actual File
>> on your computer.
>> Very simply, if I write:
>>
>> File myFile = new File("sample.txt");
>>
>> I now have a file object in memory which will eventually 'represent' a
>> file on the hard disc. This is the file "instance" you mention. I can
>> now check to see if there already is a file of this name by using "if
>> (myFile.exists())...". I can create an actual file on the hard disc by
>> calling:
>>
>> myFile.createNewFile();
>>
>> Now the picture is complete. We have an instance of the File class in
>> memory which is acting as a proxy for the real file on disc. If You now
>> create, say a FileWriter passing this File object to the constructor, you
>> can now start writing to the real file.
>>
>> Hope that helps.
>>
>> Mark
>
>
> Mark, that helps A LOT, thank you.. this is precisely the kind of
> explanation I needed, it's very clear now.. create File Obj then
> pass this File Obj to constructor when creating the file...
>
> :) thanks again.... Frances
>
You may also benefit from the section on I/O in the Java Tutorial. Here's a
link to that chapter:
http://java.sun.com/docs/books/tutorial/essential/io/index.html.

Rhino


.

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