documentclass{article}
usepackage{listings,color}
begin{document}

lstloadlanguages{javascript,xml}

begin{lstlisting}[language=java]
  public class HelloWorld
  {
    public static void main(String[] args) {
      System.out.println("Hello World!");
    }
  }
end{lstlisting}

begin{lstlisting}[language=xml]
  <?xml version="1.0" encoding="UTF-8"?>
  <addresses>
    <address>
      <name>Joe Tester</name>
      <street>Baker street 5</street>
    </address>
  </addresses>
end{lstlisting}
end{document}