\documentclass[10pt,a4paper]{article}

% Packages
\usepackage{fancyhdr}           % For header and footer
\usepackage{multicol}           % Allows multicols in tables
\usepackage{tabularx}           % Intelligent column widths
\usepackage{tabulary}           % Used in header and footer
\usepackage{hhline}             % Border under tables
\usepackage{graphicx}           % For images
\usepackage{xcolor}             % For hex colours
%\usepackage[utf8x]{inputenc}    % For unicode character support
\usepackage[T1]{fontenc}        % Without this we get weird character replacements
\usepackage{colortbl}           % For coloured tables
\usepackage{setspace}           % For line height
\usepackage{lastpage}           % Needed for total page number
\usepackage{seqsplit}           % Splits long words.
%\usepackage{opensans}          % Can't make this work so far. Shame. Would be lovely.
\usepackage[normalem]{ulem}     % For underlining links
% Most of the following are not required for the majority
% of cheat sheets but are needed for some symbol support.
\usepackage{amsmath}            % Symbols
\usepackage{MnSymbol}           % Symbols
\usepackage{wasysym}            % Symbols
%\usepackage[english,german,french,spanish,italian]{babel}              % Languages

% Document Info
\author{pca221}
\pdfinfo{
  /Title (java.pdf)
  /Creator (Cheatography)
  /Author (pca221)
  /Subject (JAVA Cheat Sheet)
}

% Lengths and widths
\addtolength{\textwidth}{6cm}
\addtolength{\textheight}{-1cm}
\addtolength{\hoffset}{-3cm}
\addtolength{\voffset}{-2cm}
\setlength{\tabcolsep}{0.2cm} % Space between columns
\setlength{\headsep}{-12pt} % Reduce space between header and content
\setlength{\headheight}{85pt} % If less, LaTeX automatically increases it
\renewcommand{\footrulewidth}{0pt} % Remove footer line
\renewcommand{\headrulewidth}{0pt} % Remove header line
\renewcommand{\seqinsert}{\ifmmode\allowbreak\else\-\fi} % Hyphens in seqsplit
% This two commands together give roughly
% the right line height in the tables
\renewcommand{\arraystretch}{1.3}
\onehalfspacing

% Commands
\newcommand{\SetRowColor}[1]{\noalign{\gdef\RowColorName{#1}}\rowcolor{\RowColorName}} % Shortcut for row colour
\newcommand{\mymulticolumn}[3]{\multicolumn{#1}{>{\columncolor{\RowColorName}}#2}{#3}} % For coloured multi-cols
\newcolumntype{x}[1]{>{\raggedright}p{#1}} % New column types for ragged-right paragraph columns
\newcommand{\tn}{\tabularnewline} % Required as custom column type in use

% Font and Colours
\definecolor{HeadBackground}{HTML}{333333}
\definecolor{FootBackground}{HTML}{666666}
\definecolor{TextColor}{HTML}{333333}
\definecolor{DarkBackground}{HTML}{0212A3}
\definecolor{LightBackground}{HTML}{F7F7FC}
\renewcommand{\familydefault}{\sfdefault}
\color{TextColor}

% Header and Footer
\pagestyle{fancy}
\fancyhead{} % Set header to blank
\fancyfoot{} % Set footer to blank
\fancyhead[L]{
\noindent
\begin{multicols}{3}
\begin{tabulary}{5.8cm}{C}
    \SetRowColor{DarkBackground}
    \vspace{-7pt}
    {\parbox{\dimexpr\textwidth-2\fboxsep\relax}{\noindent
        \hspace*{-6pt}\includegraphics[width=5.8cm]{/web/www.cheatography.com/public/images/cheatography_logo.pdf}}
    }
\end{tabulary}
\columnbreak
\begin{tabulary}{11cm}{L}
    \vspace{-2pt}\large{\bf{\textcolor{DarkBackground}{\textrm{JAVA Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{pca221} via \textcolor{DarkBackground}{\uline{cheatography.com/25815/cs/8969/}}}
\end{tabulary}
\end{multicols}}

\fancyfoot[L]{ \footnotesize
\noindent
\begin{multicols}{3}
\begin{tabulary}{5.8cm}{LL}
  \SetRowColor{FootBackground}
  \mymulticolumn{2}{p{5.377cm}}{\bf\textcolor{white}{Cheatographer}}  \\
  \vspace{-2pt}pca221 \\
  \uline{cheatography.com/pca221} \\
  \end{tabulary}
\vfill
\columnbreak
\begin{tabulary}{5.8cm}{L}
  \SetRowColor{FootBackground}
  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Cheat Sheet}}  \\
   \vspace{-2pt}Published 9th September, 2016.\\
   Updated 9th September, 2016.\\
   Page {\thepage} of \pageref{LastPage}.
\end{tabulary}
\vfill
\columnbreak
\begin{tabulary}{5.8cm}{L}
  \SetRowColor{FootBackground}
  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Sponsor}}  \\
  \SetRowColor{white}
  \vspace{-5pt}
  %\includegraphics[width=48px,height=48px]{dave.jpeg}
  Measure your website readability!\\
  www.readability-score.com
\end{tabulary}
\end{multicols}}




\begin{document}
\raggedright
\raggedcolumns

% Set font size to small. Switch to any value
% from this page to resize cheat sheet text:
% www.emerson.emory.edu/services/latex/latex_169.html
\footnotesize % Small font.

\begin{multicols*}{2}

\begin{tabularx}{8.4cm}{x{1.368 cm} x{2.812 cm} x{3.42 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{3}{x{8.4cm}}{\bf\textcolor{white}{Data Types}}  \tn
% Row 0
\SetRowColor{LightBackground}
byte & 8 bits & -2\textasciicircum{}7 to 2\textasciicircum{}7 - 1 \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
short & 16 bits & -2\textasciicircum{}15 to 2\textasciicircum{}15 - 1 \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
int & 32 bits & -2\textasciicircum{}31 to 2\textasciicircum{}31 - 1 \tn 
% Row Count 3 (+ 1)
% Row 3
\SetRowColor{white}
long & 64 bits & -2\textasciicircum{}63 to 2\textasciicircum{}63 - 1 \tn 
% Row Count 4 (+ 1)
% Row 4
\SetRowColor{LightBackground}
\seqsplit{boolean} & true \textbackslash{} false &  \tn 
% Row Count 5 (+ 1)
% Row 5
\SetRowColor{white}
char & 16 bit unicode & -2\textasciicircum{}15 to 2\textasciicircum{}15 - 1 \tn 
% Row Count 6 (+ 1)
% Row 6
\SetRowColor{LightBackground}
float & 32 bit decimal & -2\textasciicircum{}31 to 2\textasciicircum{}31 - 1 \tn 
% Row Count 7 (+ 1)
% Row 7
\SetRowColor{white}
double & 64 bit decimal & -2\textasciicircum{}63 to 2\textasciicircum{}63 - 1 \tn 
% Row Count 8 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}---}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{2.64 cm} x{5.36 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Encapsulation}}  \tn
% Row 0
\SetRowColor{LightBackground}
public & user can see \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
private & hide from user \tn 
% Row Count 2 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Swap}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{int temp = e1; \newline e1 = e2; \newline e2 = temp;} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{While loop}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{while(condition) \{ \newline //codes \newline \}} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{For Loop Array}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{string word = "Hello"; \newline for (char c: word.toCharArray())\{ \newline      system.out.println() \newline      ... \newline \}} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Class}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{public class ABCD \{ \newline      public A () \{ \newline           //codes \newline      \} \newline      public void B() \{ \newline           //codes \newline      \} \newline \} \newline  \newline  \newline  \newline  \newline {\emph{public A = default, run automatic \newline }}public void B = need call} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{p{1.6 cm} x{6.4 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Commands}}  \tn
% Row 0
\SetRowColor{LightBackground}
\textbackslash{}n & new line \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
\textbackslash{}t & tab \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
\textbackslash{}" & " \tn 
% Row Count 3 (+ 1)
% Row 3
\SetRowColor{white}
\textbackslash{}' & ' \tn 
% Row Count 4 (+ 1)
% Row 4
\SetRowColor{LightBackground}
\textbackslash{}\textbackslash{} & \textbackslash{} \tn 
% Row Count 5 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Do - While loop}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{do \{ \newline    //codes \newline \} while (condition);} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{For Loop List}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{int mylist = \{100,200,300,400\}; \newline for(int item = 0; item\textless{} mylist.length; iterm++)\{ \newline   //codes \newline \} \newline  \newline for(int item mylist) \{ \newline   //codes \newline \}} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{3.04 cm} x{4.96 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Abbreviation}}  \tn
% Row 0
\SetRowColor{LightBackground}
JVM & JAVA Virtual Machine \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
JRE & JAVA Runtime Environment \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
JDK & JAVA Development Kit \tn 
% Row Count 3 (+ 1)
% Row 3
\SetRowColor{white}
bytecode & intermediate level long \tn 
% Row Count 4 (+ 1)
% Row 4
\SetRowColor{LightBackground}
compiler & JAVA -\textgreater{} Bytecode \tn 
% Row Count 5 (+ 1)
% Row 5
\SetRowColor{white}
Java Runtime & bytecode -\textgreater{} machine \tn 
% Row Count 6 (+ 1)
% Row 6
\SetRowColor{LightBackground}
native compiler & directly to machine \tn 
% Row Count 7 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Array}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{int{[}{]} mylist = new int{[}2{]} \newline mylist{[}0{]} = 100; \newline mylist{[}1{]} = 200; \newline  \newline int{[}{]} mylist = \{100, 200\}} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}


% That's all folks
\end{multicols*}

\end{document}