Get the directory from a file path in java (android)

Question

Is there a function to get the directory part of a file path?

so from

String a=\"/root/sdcard/Pictures/img0001.jpg\";

Answer 1

I have got solution on this after 4 days, Please note following points while giving path to File class in Android(Java):

1. Use path for internal storage String path="/storage/sdcard0/myfile.txt";
2. path="/storage/sdcard1/myfile.txt";

3. mention permissions in Manifest file.

4. First check file length for confirmation.
5. Check paths in ES File Explorer regarding sdcard0 & sdcard1 is this same or else......

e.g.

File file=new File(path);
long=file.length();//in Bytes