Saving to file. Help needed

Question

I'm designing an electrionic organiser, it only does one year and for each month the user can enter appiontments (which is just a simple text area the user enters text to).
I have prity much everything finshed but I don't know how I should store the users data. What way should I save the data to file for each day of each month. So it is easily loaded again.
Please Help

Answer 1

I was given this code to use is this what you where talking about?
/* An object of this class enables a user to read and/or write whole objects from/to a given file:
          - read from the set file (if the file is found - otherwise a new default object is created)
          - write a given object to the set file
      At present, this class reads objects of type 'myObjectClass' (and writes objects of any type). 
      To serialize other classes, only six lines in the readObjectFromFile method need to be edited:
             - lines 38, 40, 47, 52, 57 and 62.
      The typical usage of this class involves:
                - creating an instance of simpleSerializer, passing in the file object
                - reading and/or writing objects:
                         simpleSerializer S = new simpleSerializer (new File("myData.dat"));
                         S.readObjectFromFile();
                         S.writeObjectToFile(myObject);
import java.io.*;
public class simpleSerializer
     public File theFile;  // the set file for reading and writing
     public simpleSerializer(File f)
          theFile = f;
     } // constructor
     /* The following method can be edited to read objects of your class (myObjectClass, here) */
     /* To read other classes, replace the six references to myObjectClass                  */
     public myObjectClass readObjectFromFile()
          myObjectClass d;
          if ((theFile!=null) && theFile.exists())
               try
                    ObjectInputStream ois = new ObjectInputStream( new FileInputStream(theFile));
                    d = (myObjectClass) ois.readObject();
                    ois.close();
               catch (IOException e) 
               { /* handle problem with fault in reading the file */     
                    d = new myObjectClass();
                    System.out.println("** IO Exception when reading file");
               catch (ClassNotFoundException cnfe) 
               { /* handle problem with fault in reading the file */ 
                    d = new myObjectClass();
                    System.out.println("** Class not found when reading file");
          else // file didn't exist - construct a new default myObjectClass using constructor
               d = new myObjectClass();
          return d;
     } // readObjectFromFile
     public void writeObjectToFile(Object d)
          try
               ObjectOutputStream oos = new ObjectOutputStream( new FileOutputStream(theFile));
               oos.writeObject(d);
               oos.close();
          catch (IOException e)  { /* handle problem with fault in reading the file */     }
     } // writeObjectToFile
} // simpleSerializer