Translating a DOM to Other Collections
We've examined a simple Collections example, now we move on and examine how we can model the DOM as a Collection.
DOM to Array
The simplest way to provide the DOM as an array is to extend the ArrayList class. Listing 6.2 shows a very simple class that extends ArrayList and takes a document and a tag and creates an array collection, which can then be used anywhere a collection can be used.
The example itself is simple enough: Import java.util and then define the class to extend ArrayList (line 6). We then populate the array in the constructor as shown in lines 8–20. We can then use the class like any other collection and lines 33–39 simply exercise our new DOM-based collection.
Tip
A little trick you can ...
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