Some LaTeX examples for my friend

lalla.tex

\documentclass{article}

\usepackage{amsmath}

\begin{document}

\begin{table}[h!]
\centering
\begin{tabular}{ | c | c | c | c | c | c | c | c | c | c | }
  \hline
  0 & 0 & 0 & 0 & 9 & 2 & 4 & 7 & \textbf{2} & \textbf{8}\\
  \hline
\end{tabular}
\end{table}

\begin{center}
$\begin{bmatrix}
0 & 1 & 1 & 0\\
1 & 0 & 1 & 1\\
1 & 1 & 0 & 1\\
0 & 1 & 1 & 0
\end{bmatrix}$
\end{center}

\end{document}