centering titles when using the beamer class in latex

Question

I want to center the frametitles on my talk. I understand that the beamer class has a built-in ability to center frametitles, but I can't figure out how to do it. It is something like:

\begin{frame}
\frametitle[alignment=center]{title}
\end{frame}

but that doesn't work.

Can I get a little help?

Answer 1

Try

\setbeamertemplate{frametitle}[default][center]

before all slides.

Answer 2

Manually, i always did it like this:

\begin{frame}
\frametitle{\centerline{Hello World!}}
\end{frame}