public IteratorDoubleIterator(Iterator iterator) 
{
        _iterator = iterator;
}

Creates an DoubleIterator wrapping the specified Iterator .

Also see:

wrap

 public boolean hasNext() 
{
        return _iterator.hasNext();
}

 public double next() 
{
        return ((Number)(_iterator.next())).doubleValue();
}

 public  void remove() 
{
        _iterator.remove();
}

 public static DoubleIterator wrap(Iterator iterator) 
{
        return null == iterator ? null : new IteratorDoubleIterator(iterator);
}

Create an DoubleIterator wrapping the specified Iterator . When the given iterator is null, returns null.