\begin{minipage}[t]{8in}
\begin{tabular}{ll}
Array$<$Item$>$  & a;
\end{tabular}\\


 \parbox[b]{2in} \ \ 
\begin{minipage}[t]{4in}Creates an empty dynamic array.
 A default size of \verb+sizeof(Item)+ * DEFAULT\_SIZE (see general.h) 
 is used. $O(1)$\end{minipage}
\end{minipage}
\vspace{0.2in}
 

\begin{minipage}[t]{8in}
\begin{tabular}{ll}
Array$<$Item$>$  & a( (int) sz);
\end{tabular}\\


 \parbox[b]{2in} \ \ 
\begin{minipage}[t]{4in}Creates an dynamic array with a block of space large enough to store
{\em sz} \verb+Item+s. $O(1)$\end{minipage}
\end{minipage}
\vspace{0.2in}


\begin{minipage}[t]{8in}
\begin{tabular}{ll}
Array$<$Item$>$  & a( (Array$<$Item$>$\&) a);
\end{tabular}\\


 \parbox[b]{2in} \ \ 
\begin{minipage}[t]{4in}Creates an dynamic array with a block of space as large as that of $a$ and
 initializes it with the elements of $a$.  $O(n)$\end{minipage}
\end{minipage}
\vspace{0.2in}


\begin{minipage}[t]{8in}
\begin{tabular}{ll}
Array$<$Item$>$  & a( (Container$<$Item$>$\&) c);
\end{tabular}\\


 \parbox[b]{2in} \ \ 
\begin{minipage}[t]{4in}Creates an dynamic array with storage of default size and initializes it
 with the elements of $c$.  Note that the storage may be reallocated during
 this process.  $O(n)$\end{minipage}
\end{minipage}
\vspace{0.2in}