Folder created instead of a file

I want to create a file in a defined directory, i tried this two codes but the first just creates folders and the other output an exception: no such file or directory: First code:

File file = new File(Environment.getExternalStorageDirectory()
                                 +File.separator
                                 +"carbu" 
                                 +File.separator
                                 +"install"); 
                            file.mkdir();

Then i added this c开发者_JS百科ode hopefully to create the file:

File file2 = new File("/carbu/install/","voitu");
file2.createNewFile();

Can anyone please try to help me ? Thank you very much :).

Try this in your Activity:

FileOutputStream fos = openFileOutput(YOUR_FILE_NAME, Context.MODE_PRIVATE);
ObjectOutputStream oos = new ObjectOutputStream(fos);
oos.writeInt(5);
oos.flush();

This will create file if it isn't exist. Of course you should close oos and fos.

Here is the most simple solution, working at 100% ;)

File dir = new File (sdCard.getAbsolutePath() + "/jetpack/install");
                    dir.mkdirs();
                    File file = new File(dir, "wipe");

have you tried:

  File f=new File("myfile.txt");
  if(!f.exists())
  {
    f.createNewFile();
  }

In you example you are only giving the pathname to the file but you are not defining the type and the name of the new file.

http://download.oracle.com/javase/6/docs/api/java/io/File.html

Also try following:

String FILENAME = "/carbu/install/test.txt";
String string = "hello world!";

FileOutputStream fos = openFileOutput(FILENAME, Context.MODE_PRIVATE);
fos.write(string.getBytes());
fos.close()

got the above example from: http://developer.android.com/guide/topics/data/data-storage.html

  try {
        File root = Environment.getExternalStorageDirectory();
        if (root.canWrite()){
            File gpxfile = new File(root, "gpxfile.gpx");
            FileWriter gpxwriter = new FileWriter(gpxfile);
            BufferedWriter out = new BufferedWriter(gpxwriter);
            out.write("Hello world");
            out.close();
        }
    } catch (IOException e) {
        Log.e(TAG, "Could not write file " + e.getMessage());
    }

While you were careful in constructing the path correctly in the first segment, you just hard-coded the wrong path in the second part. Ensure you use the correct path, possibly as follows:

String path = Environment.getExternalStorageDirectory().getAbsolutePath()
                                 +File.separator
                                 +"carbu" 
                                 +File.separator
                                 +"install";
File file = new File(path); 
file.mkdir();

File file2 = new File(path + File.separator + "voitu");
file2.createNewFile();