Java.io.FileNotFoundException when using RandomAccessFile to create a file

Question

I encounter a FileNotFoundException when I try to create a file using RandomAccessFile:

RandomAccessFile file = new RandomAccessFile("/test.jpg", "rw"); 

I do not know how to get around this. It drives me crazy.

thanks

Answer 1

Try

 RandomAccessFile file = new RandomAccessFile(new File(getFilesDir(), "test.jpg"), "rw"); 

Answer 2

From the documentation:

FileNotFoundException - if the mode is "r", but the given file object does not denote an existing regular file, or if the mode starts with "rw", but the given file object does not denote an existing, writable regular file and a new regular file of this name cannot be created or if there is some other error when opening or creating a file

Can you create such a file in other ways? Do you work in an environment where "/" stands for the root directory?

Answer 3

In fact, this error occurs when we specify only the file name

 String fileName="Shiva.txt" String Directory = Environment.getExternalStorageDirectory() + File.separator + "OneSecondMoments" + File.seseparator + fileName 

eg:

 RandomAccessFile randomAccessFile = new RandomAccessFile(fileName, "rw"); 

Give the path of the whole directory, for example

 RandomAccessFile randomAccessFile = new RandomAccessFile(Directory, "rw");