include code in latex
usepackage{listings}
usepackage{color}
definecolor{dkgreen}{rgb}{0,0.6,0}
definecolor{gray}{rgb}{0.5,0.5,0.5}
definecolor{mauve}{rgb}{0.58,0,0.82}
lstset{frame=tb,
language=Java,
aboveskip=3mm,
belowskip=3mm,
showstringspaces=false,
columns=flexible,
basicstyle={smallttfamily},
numbers=none,
numberstyle=tinycolor{gray},
keywordstyle=color{blue},
commentstyle=color{dkgreen},
stringstyle=color{mauve},
breaklines=true,
breakatwhitespace=true,
tabsize=3
}