how to set two images side by side in latex code example

Example 1: latex two figure side by side

\documentclass[10pt,a4paper]{article}
\usepackage[demo]{graphicx}
\usepackage{subfig}
\begin{document}
\begin{figure}
    \centering
    \subfloat[label 1]{{\includegraphics[width=5cm]{img1} }}
    \qquad
    \subfloat[label 2]{{\includegraphics[width=5cm]{img2} }}
    \caption{2 Figures side by side}
    \label{fig:example}
\end{figure}
\end{document}

Example 2: latex how to make two images side by side

\documentclass{article}
\usepackage[demo]{graphicx}
\usepackage{caption}
\usepackage{subcaption}	% You need this package for subfigures

\begin{document}

\begin{figure}
\centering
\begin{subfigure}{.5\textwidth}
  \centering
  \includegraphics[width=.4\linewidth]{image1}
  \caption{A subfigure}
  \label{fig:sub1}
\end{subfigure}%
\begin{subfigure}{.5\textwidth}
  \centering
  \includegraphics[width=.4\linewidth]{image1}
  \caption{A subfigure}
  \label{fig:sub2}
\end{subfigure}
\caption{A figure with two subfigures}
\label{fig:test}
\end{figure}