Trouble writing to file with FileWriter

Question

Hey I'm pretty new to Java and even newer to file classes so I'd appreciate it you could look over what I've done. My FlashCard object has its own toString() method which prints out what I want it to so basically all I need to know is why it doesn't print anything?
File f;
//..Constructors and other methods for a JFrame
     private void printList() throws IOException
               writer = new PrintWriter(new BufferedWriter(new FileWriter(f)), true); //f is a File object declared below
               writer.println("test");
               java.util.Iterator<FlashCard> e = cards.iterator();
               String s = "";
               while(e.hasNext())
                    s = "" + e.next();
                    writer.println(s);          
                    System.out.println(s);   //Debugging line, prints out what i want to be put in the file correctly!
               writer.close();
               FileWriter writer2 = new FileWriter(f, true);
               writer2.write("hi");
//....more code
private class ClickListener                          //subclass of the class containing the code above
               implements ActionListener
               @Override
               public void actionPerformed(ActionEvent e)
                    if (e.getSource() == create)
                         boolean temp = false;
                         String fileName = "c:\\FlashCards\\";
                         f = new File(fileName);
                         f.mkdir();
                         f = new File(fileName + stackName.getText() + ".txt");
                         try {
                              temp = f.createNewFile();
                         } catch (IOException e1) {
                         //...More code here for responding to file not being created successfully
                         f.setWritable(true);
                         control.currentFile = f;
                    }This the the only code I thought to be relevant but if there's a declaration you need that I left out let me know! The annoying thing is I copied this from another class I wrote (with modifications of course) and it works perfectly, no problems!
Thanks in advance!

Answer 1

OK I've done the things you've mentioned, thank you for me notice i was missing some code organization. The problem unfortunately is not yet solved but now I think I have a better idea of what the problem is! Here's the code:
This is what I'm using to make a file
private void createFile()
               boolean temp = false;
               String fileName = "c:\\FlashCards\\";
               f = new File(fileName);
               f.mkdir();
               f = new File(fileName + stackName.getText() + ".txt");
               try {
                    temp = f.createNewFile();
               } catch (IOException e1) {
                    //TODO fill in exception catchs
               if(temp)
                    //Do something
               else
                    JOptionPane.showMessageDialog(addCard, "File Name Already Exists");
                    return;
          }And this is where the file is being used by a writer:
          private void printList() throws IOException
               String temp = f.getAbsolutePath();
               PrintWriter writer = new PrintWriter(new BufferedWriter(new FileWriter(new File(temp), true)), true);
               java.util.Iterator<FlashCard> i = cards.iterator();
               while(i.hasNext())
                    writer.println(i.next());          //TODO fix this writer so that it prints properly onto the document!!
               writer.close();
          }The problem I think is either caused by a) the new File doesn't like properly to the FileWriter for some reason or b) the file I've made does not work for output for some reason. I think this because I can make a new file with a literal pathname such as "c:\\file.txt" and it works fine but as soon as I use my file f to make it it doesn't print anything out!! any ideas?