\documentclass[12pt,a4paper]{report}

\usepackage{lipsum}
\usepackage{abstract}
\usepackage[ngerman]{babel}

\title{\LaTeX{} Demo}

\author{Thomas Papendieck}

\begin{document}
\maketitle


\begin{abstract}
\lipsum[1-3]
\end{abstract}

\tableofcontents
\chapter{Das erste Beispiel}
\lipsum[4-9]

\end{document}