java FileWriter append

Question

If you are using a FileWriter in append mode (i.e append set to true in the constructor) is there any easy way of determining if you are appending to an existing file or writing to a new file?

Clearly you could try reading the file first but I wonder if there a one liner to know whether you are creating the file or not?

Thanks

This [post](http://stackoverflow.com/questions/24982744/printwriter-to-append-data-if-file-exist/24982850#24982850) might help you. — Braj, Jul 28 '14 at 16:05

score 0 · Answer 1 · answered Jul 28 '14 at 16:07

0

Before initializing the FileWriter you can use file.exists() (which returns a boolean) to see if the file exists. Then you can do other checks such as file.isFile() and !file.isDirectory() to make sure that these are files you can write to.

answered Jul 28 '14 at 16:07

Zach

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Thanks - not quite a one liner but almost. – Dan Jul 28 '14 at 16:10
Well you can always use `&&` to join together. – Unihedron Jul 28 '14 at 16:10

java FileWriter append

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