public int size()
    {
        int result = 0;
        // sum over all inner maps 
        for ( Iterator<K1> keys1 = maps.keySet().iterator(); keys1.hasNext(); )
        {
            Map2<K2,K3,V> inner_map = maps.get(keys1.next());
            result += inner_map.size();
        }
        return result;
    }
public int size ( ) { int result = 0 ; for ( Iterator < K1 > keys1 = maps . keySet ( ) . iterator ( ) ; keys1 . hasNext ( ) ; ) { Map2 < K2 , K3 , V > inner_map = maps . get ( keys1 . next ( ) ) ; result += inner_map . size ( ) ; } return result ; }
Returns the accumulated size of all the bottom level maps.