File query

[padmini Babu]

Hi ranchers,
In a jqplus explan, it was written,
"
A file object is only an abstract representation of file and directory pathnames.
If the file doesn't exist nothing is created. But if you try to open a FileInput or FileOutputString using this File object, it will throw a FileNotFoundException. "
Is this statement right.
I think " But if you try to open a FileInput or FileOutputString using this File object, it will throw a FileNotFoundException. "
Here, the file will be created if it does not exist or else a file if exists will be replaced.
Any comments???
Pl help
padmini

[Mihai T]

Hi,

A File object is an abstract representation of file or directory pathnames. If the file/directory doesn't exist il will not be created when you create the File object.
If you try to create a FileInputStream using a File object which represents an inexistent file you will get and FileNotFoundException - because you try to open an inexistent file.
If you try to create a FileOutputStream using the same File object, the file will be created !!
I think it is quite intuitive:
- when you try to read from a file, the file must exist.
- when you want to write something to a file you have to create the file.
Hope it helps...