\begin{table}[htbp!]
 \begin{minipage}[t]{\textwidth}
\begin{tabularx}{\textwidth}{|X|X|}
\hline
\relax      Double bars   &  Separate header fields  \\
\hline
\relax      Single bars    &  Separate body fields  \\
\relax      Here are \emph{more} 1  &  body fields 1  \\
\relax      Here are <script>"more"'<\Slash{}script> 2  &  body \emph{fields} 2  \\
\relax      Here are more 3  &   body \textbf{fields} 3  \\
\relax      Here are \texttt{more} 4  &  body \textbf{\emph{fields}} 4  \\
\hline
\relax      Triple bars  &  Separate footer fields  \\
\hline
\end{tabularx}

\caption[]{This is the caption}
\end{minipage}
\end{table}

\begin{table}[htbp!]
 \begin{minipage}[t]{\textwidth}
\begin{tabularx}{\textwidth}{|X|X|X|X|}
\hline
\relax   &  hello  &  htere  &  cioa   \\
\hline
\relax   &  table  &  table  &  table   \\
\relax   &  table1  &  table2\footnote{footnotes} aksdfla askl djlaksdj lakjsdfl kjasdlk fjalsdk jflaksjd lkjasld kjfal skdjlkasjd fljasdlkfjalksdjflasdlkjfalskdflaskd fljasldkfj  &  table3   \\
\relax   &  table4  &  \emph{table5}  &  table6   \\
\hline
\relax   &  foot  &  \textbf{foot}\footnote{second note}  &  \textbf{\emph{foot}}   \\
\hline
\end{tabularx}

\caption[]{caption\footnote{third not}}
\end{minipage}
\end{table}