I would avoid using the PrintWriter class since it doesn't throw exceptions. You would need to call checkError() after each operation, and you would then only get a return value that says that an error has occured or not. You won't be able to find out why it failed, and won't see any error messages.
Use a DataOutputStream(new FileOutputStream()) if you want to have a "binary" file, and e.g. a BufferedWriter(new FileWriter()) if you want to have a text file. On 29 Juli, 15:14, Lorenz <[email protected]> wrote: > At the end I've found the way to write a file: > > Use PrintWriter: openOutputFile(String:name file) to create or open an > existent file. > PrintWriter f=new PrintWriter(openOutputFile(String:name file)); > f.println("something) ; to write on the file. > Thanks Micheal! > > On Jul 29, 2:00 pm, Michael Leung <[email protected]> wrote: > > > > > I found a thread about writing files. > > >http://www.anddev.org/working_with_files-t115-s30.html > > > Would it be helpfule for you? > > > On Wed, Jul 29, 2009 at 2:59 AM, Lorenz <[email protected]> wrote: > > > > Hi , > > > I've some problem reading a file. First of all I've created a new > > > file ,and from the FileExplorer of Eclipse I'm able to find it but I > > > can't open it and read it(it seems also that the file "Datacoord.dat" > > > is empty, as a matter of fact the size showed by the FileExplorer is > > > 0). > > > However I want to read a file, what is the right sintax? Can I create > > > file out of the data/data/mypackage/files ?? > > > I post my code: > > > > PrintWriter savedpoint = new PrintWriter(openFileOutput > > > ("Datacoord.dat",MODE_APPEND)); > > > > for(int i=0;i<20;i++) > > > { > > > savedpoint.println("-78.443221"+i+" "+"120.344423"); > > > > } > > > Is this rigth to write on a file? > > > Please write the sintax to read a file..Thanks in advance! > > > -- > > Regards, > > Michael Leunghttp://www.itblogs.infohttp://www.michaelleung.info --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Android Beginners" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-beginners?hl=en -~----------~----~----~----~------~----~------~--~---
