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Index › Programming Questions & Help › Syntax Questions › Multidimensional Arraylist
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Multidimensional Arraylist (Read 338 times)
nestor
Multidimensional Arraylist
Mar 5th, 2009, 4:49pm  
I'm making a drawing program, storing location vectors in an Arraylist.  I would like to abstract that further by placing these ALists inside of another.  For example: Words is an ArrayList of Letters, which in turn is an Arraylist of points which make 1 letter.  I think it is possible to create this structure, but how to access the methods of the nested ALists?
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PhiLho 
Re: Multidimensional Arraylist
Reply #1 - Mar 5th, 2009, 5:07pm  
You have to do cascaded gets:

Word w = (Word) words.get(n);
Letter l = (Letter) w.get(0);

etc.
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WWW  
nestor
Re: Multidimensional Arraylist
Reply #2 - Mar 5th, 2009, 6:40pm  
Okay, I think that makes sense.  Do I need to declare word and letter?  How can I declare a letter within a word?

word.add(letter = new ArrayList());

Also, how to add vectors to letter?
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