How can I get into the C++mode automaticaly when open .h files?

Question

How can I get into the C++mode automaticaly when open .h files?

I uses emacs23.2 in fedura6.

I open .cpp file use C-x C-f xxx.h .

Answer 1

(setq auto-mode-alist (cons '("\\.h$" . c++-mode) auto-mode-alist))

Answer 2

probably this will be better aesthetically?

(add-to-list 'auto-mode-alist (cons "\\.h\\'" 'c++-mode))