[Tex/LaTex] Create separator lines for algorithm captions in algorithm2e

Question

How I can generate separator lines for captions as follows in algorithm2e?

---

Algorithm 1: Generate Separator Line

---

Answer 1

Use the ruled package option:

\documentclass{article}
\usepackage[ruled]{algorithm2e}

\begin{document}

\begin{algorithm}
\SetAlgoLined
\KwData{this text}
\KwResult{how to write algorithm with \LaTeX2e }
initialization\;
\While{not at end of this document}{
read current\;
\eIf{understand}{
go to next section\;
current section becomes this one\;
}{
go back to the beginning of current section\;
}
}
\caption{How to write algorithms}
\end{algorithm}

\end{document}