Saving to text file from GUI within linked list

Question

can anyone help me with saving to a text file from a GUI text area and text fields??
then reading back into the labels and textfields from the text file??
It's currently just saving in a linked list and creating a new item inside of it. but i have to now make a text file for each item, this is what i currently have
i need to turn this into something that with save to text file with buffered reader or something, can anyone help???
public void saveToFile()
        while(listIterator.hasNext())
            item = (Item)listIterator.next();
            saving.save(item);
    }//END SAVETOFILE
    public Object save(Item item)
        if (last == 1)
            itemList.set( listIterator.nextIndex() , item);
        else
            itemList.set(listIterator.previousIndex(), item);
        itemList.set(listIterator.previousIndex(), item);
        listIterator = itemList.listIterator(0);
        return itemList.getFirst();   
    }//END SAVE

Answer 1

thank you sztyopek, i am still having trouble getting it to save to text file. I have to do it through a client and server so i have a protocol class. in the protocol class i have
if (o instanceof String)
                    //System.out.println(o);
                    if (o.equals("next"))
                        newo = database.getNextItem();
                       // some how send newo
                    if (o.equals("prev"))
                        newo = database.getPrevItem();
                        //some how send newo
                    if (o.equals("save"))
                        database.saveToFile();
                    if (o.equals("exit"))
                        System.exit(1);
                }//END IF STRING
         if (o instanceof Item)
           newo = database.save((Item)o);
        return newo;
    }When i save what i have entered in the textfields for each record it doesn't create a textfile. and it still getting retrieved from how i set it up before by going to the database.save((Item)o)...the last if statement above but i can't change that to the saveToFile method that u helped me with it says incompatible types or something.
this is the method it is going to, i assume i have to get rid of this so i stop getting the information from the list and start getting it from the text file.
public Object save(Item item)
        if (last == 1)
            itemList.set( listIterator.nextIndex() , item);
        else
            itemList.set(listIterator.previousIndex(), item);
        itemList.set(listIterator.previousIndex(), item);
        listIterator = itemList.listIterator(0);
        return itemList.getFirst();   
    }//END SAVEif this makes any sense can u give me a hand.
As to rob the guy bagging me........i am doing a bachelor of networking and they make us do java for the first year. this is my last semester and last assignment. it is also the last thing i have to do for the assignment. I am not good at java so that is why i am asking for some help i just want to pass this semester then i am never doing it again.
thanks.