En , you r right, I didn't think much about How to get instance effciently..
I never see the loki.
currently I am woring on a c++ project , but I moved to java some years ago, So I forget some thing about how to program in c++
I just write a example to practice. I thought this is best way to recall. :)
I don't mind if you r FAT.
I don't mind if you r UGLY.
I don't mind if you ACT CUTE.
But I can't STAND if you r FAT, UGLY and still ACT CUTE.