FileConnection first steps

[Rozik]

Hello everyone,

I just wrote my first test program using the file connection api.

I have tested it on the emulator and it works fine.

then i loaded it onto my E60 and reading files works just fine but when i try to create a folder the application just closes

this is my function to create my folder

    public void createFolder() {
        try {
            FileConnection filecon = (FileConnection) Connector.open("file:///C:/Data/test/");
            // Always check whether the file or directory exists.
            // Create the file if it doesn't exist.
            if (!filecon.exists()) {
                System.out.println("makedir");
                filecon.mkdir();
            }
            filecon.close();
        } catch (IOException ioe) {
            System.out.println(ioe.getMessage());
        }
    }

filecon.mkdir();

is causing the application to close

is it that i cantcreate files/folders on the device at all?
or can i only create files/folders in certain paths?

this funktion asks for permission evertime but works fine:

    private void getRoots() {
        Enumeration drives = FileSystemRegistry.listRoots();
        System.out.println("The valid roots found are: ");
        while (drives.hasMoreElements()) {
            root = (String) drives.nextElement();
            System.out.println("\t" + root);
        }
    }

[nicenouman]

application must have throw an exception before closing. i would suggest dsplay the exp.message in an alert instead of using system. out. println on device. this will let u know the exception. yes u r true, u r only allowed to create files and folders at certain location. try images folder in ur mobile. create a folder.

[Rozik]

nope no exception

even when i try to catch it with an alert the application just closes on this line:

FileConnection filecon = (FileConnection) Connector.open("file:///C:/Data/test/");


I just tried with this:

FileConnection filecon = (FileConnection) Connector.open(System.getProperty("fileconn.dir.private")+"test/", Connector.WRITE);

but then the application will exit on this line:

filecon.exists();

no exeptions thrown:-(

[astrientlabs]

Try catching a Throwable instead of IOException, and then display the alert. Sometimes catching a specific exception will miss undeclared Exceptions and Errors.

Display the exception in an alert.