Tutorial :FileNotFoundException when trying to read a file I've written



Question:

I am trying to write an object (pilotRecord) to a file and read it back again. I understood that I didn't need to specify a path as it is internal to my app, so I want all files deleted if the app is uninstalled.

Here's my code:

    fileoutputstream = openFileOutput("test1", Context.MODE_WORLD_WRITEABLE);      Log.d(this.getClass().getName(), "loadPilotRecord: "+fileoutputstream.toString());      objectoutputstream = new ObjectOutputStream(fileoutputstream);      Log.d(this.getClass().getName(), "loadPilotRecord: "+objectoutputstream.toString());      objectoutputstream.writeObject(pilotRecord);      objectoutputstream.close();      fileoutputstream.close();        fileinputstream = new FileInputStream("test1");      Log.d(this.getClass().getName(), "loadPilotRecord: "+fileinputstream.toString());      objectinputstream = new ObjectInputStream(fileinputstream);      Log.d(this.getClass().getName(), "loadPilotRecord: "+objectinputstream.toString());      pilotRecord = (PilotRecord)objectinputstream.readObject();      objectinputstream.close();      fileinputstream.close();  

My problem is that I get a FileNotFoundException on the following line in the above code: fileinputstream = new FileInputStream("test1"); I'm not really sure how to find out what path it is using, or maybe there is a more obvious problem I'm just not seeing. Sorry if this is a bit basic, but I'm still trying to find my feet. The Log.d statements just output the class name and an Id.

TIA,

  • Frink


Solution:1

Have you tried openfileinput("test1) instead of new FileInputStream("test1")?


Solution:2

To find out which path is actually used try:

File f = new File("test1");  Log.d(this.getClass().getName(), f.getAbsolutePath());  

Look at this location if the file is really created - if not, you won't be able to read.

EDIT: removed the guess with flush which was quite some nonsense


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