Unable to expand permanent memory

Question

Hi everyone!
I'm developing an application which needs a dictionary. This dictionary is a 706kb txt file. I can't load it all because I get an outofmemory exception.
I made a class Words and 64 classes that extend from Words (+Words00,Words01,...,Words63+). Each one of the son classes is the same. All of them together make the whole dictionary.
class Words{
   protected String words[];
class Words00 extends Words{
   private String myWords[] = {"a","ab","abe","ace","age",...............};
   public Words00(){
      words = myWords;
      myWords = null;
}I also wrote Words00 like this because I want to load the words fast.
Each of the (Words00,Words01,...,Words63) files is like 30kb and when I need a list I do this:
Words list = loader.getWords(index);
class Loader{
   public getWords(int index){
      switch(index){
         case 0: return new Words00();
         case 1: return new Words01();
         case 63: return new Words63();
}When the method getWords is called the message "java.lang.OutOfMemoryError" is shown.
When I comment some lines in getWords and I leave only a few "case" lines uncommented the error does not happen.
I think it is because all the classes Words## are loaded somewhere and they weigth 30kb each.
What can I do?? I don't need two lists at the same time. When I need a new one I can throw away the one I was using.
Also what can I do to load the lists fast??

Answer 1

I solved it....
I didnt know but using a DataInputStream the reading is really fast. I use ReadUTF and ReadInt. Now I dont have 64 classes but 64 binary files. Every time I need one file I load it....