Inserting code in this LaTeX document with indentation

Question

How do I insert code into a LaTeX document? Is there something like:

\begin{code}## Heading ## ... \end{code} 

The only thing that I really need is indentation and a fixed width font. Syntax highlighting could be nice although it is definitely not required.

Answer 1

Use listings package.

Simple configuration for LaTeX header (before \begin{document}):

\usepackage{listings} \usepackage{color}  \definecolor{dkgreen}{rgb}{0,0.6,0} \definecolor{gray}{rgb}{0.5,0.5,0.5} \definecolor{mauve}{rgb}{0.58,0,0.82}  \lstset{frame=tb,   language=Java,   aboveskip=3mm,   belowskip=3mm,   showstringspaces=false,   columns=flexible,   basicstyle={\small\ttfamily},   numbers=none,   numberstyle=\tiny\color{gray},   keywordstyle=\color{blue},   commentstyle=\color{dkgreen},   stringstyle=\color{mauve},   breaklines=true,   breakatwhitespace=true,   tabsize=3 } 

You can change default language in the middle of document with \lstset{language=Java}.

Example of usage in the document:

\begin{lstlisting} // Hello.java import javax.swing.JApplet; import java.awt.Graphics;  public class Hello extends JApplet {     public void paintComponent(Graphics g) {         g.drawString("Hello, world!", 65, 95);     }     } \end{lstlisting} 

Here's the result: