%% 
%%  A DANTE-Edition example
%% 
%%  Example 02-01-12 on page 25.
%% 
%%  Copyright (C) 2010 Herbert Voss
%% 
%%  It may be distributed and/or modified under the conditions
%%  of the LaTeX Project Public License, either version 1.3
%%  of this license or (at your option) any later version.
%% 
%%  See http://www.latex-project.org/lppl.txt for details.
%% 
%% 
%% ==== 
% Show page(s) 1
%% 
\documentclass[]{article}
\pagestyle{empty}
\setlength\textwidth{375.57637pt}
\setlength\parindent{0pt}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}

\usepackage{array} \newcolumntype{P}[1]{>{\hspace{0pt}}p{#1}}

\begin{document}
\begin{tabular}[t]{|l r c | p{1cm}|}
left & right & centred & box           \\\hline
l    & r     & c       & correctilific
\end{tabular} \qquad
\begin{tabular}[t]{|l r c | P{1cm}|}
left & right & centred & box\\\hline
l    & r     & c       & correctilific
\end{tabular}
\end{document}