\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{Srabudc}
\pdfinfo{
  /Title (hints-for-new-java-programmers.pdf)
  /Creator (Cheatography)
  /Author (Srabudc)
  /Subject (Hints for new Java Programmers Cheat Sheet)
}

% Lengths and widths
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\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}{0064A6}
\definecolor{LightBackground}{HTML}{EFF5F9}
\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{Hints for new Java Programmers Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{Srabudc} via \textcolor{DarkBackground}{\uline{cheatography.com/84490/cs/20331/}}}
\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}Srabudc \\
  \uline{cheatography.com/srabudc} \\
  \end{tabulary}
\vfill
\columnbreak
\begin{tabulary}{5.8cm}{L}
  \SetRowColor{FootBackground}
  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Cheat Sheet}}  \\
   \vspace{-2pt}Not Yet Published.\\
   Updated 21st August, 2019.\\
   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{tabularx}{17.67cm}{x{6.7353 cm} x{10.5347 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{17.67cm}}{\bf\textcolor{white}{Nicer Output with `System.out.printf`}}  \tn
% Row 0
\SetRowColor{LightBackground}
Ugly & \seqsplit{`System.out.println("User} " + user + " has " + coins + " cions");` \tn 
% Row Count 3 (+ 3)
% Row 1
\SetRowColor{white}
Better & \seqsplit{`System.out.printf("User} \%s has \%d coins\%n", user, coins);` \tn 
% Row Count 6 (+ 3)
% Row 2
\SetRowColor{LightBackground}
`\%n` & Line Feed \tn 
% Row Count 7 (+ 1)
% Row 3
\SetRowColor{white}
`\%s` & String \tn 
% Row Count 8 (+ 1)
% Row 4
\SetRowColor{LightBackground}
`\%d` & Integer (`byte`, `short`, `int`, `long`, ....) \tn 
% Row Count 10 (+ 2)
% Row 5
\SetRowColor{white}
`("\%3d \%s", 7, "flowers")` & `"   7 flowers"` with leading spaces \tn 
% Row Count 12 (+ 2)
% Row 6
\SetRowColor{LightBackground}
`("\%12s", "flowers")` & `"     flowers"` - right aligned in a field of 12 characters. \tn 
% Row Count 15 (+ 3)
% Row 7
\SetRowColor{white}
`\%f` & Floating Point \tn 
% Row Count 16 (+ 1)
% Row 8
\SetRowColor{LightBackground}
`("\%.3f \%\%", 0.1239)` & `"0.124 \%"` with 3 digits after the "." \tn 
% Row Count 18 (+ 2)
% Row 9
\SetRowColor{white}
`\%\%` & The character "\%" \tn 
% Row Count 19 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{17.67cm}}{Formatting details can be found at \seqsplit{https://docs.oracle.com/en/java/javase/12/docs/api/java.base/java/util/Formatter.html\#syntax} \newline  \newline `System.out.printf("\%3d: \%-20s\%n", 12, "apples");  -\textgreater{}  "12 apples"`   \newline `System.out.printf("\%7.2f \%\% rebate\%n", 12.4);  -\textgreater{} "  12.40 \% rebate" with line break` \newline `System.out.printf("\%07.2f \%\% rebate\%n", 12.4);  -\textgreater{} "0012.40 \% rebate"` \newline `System.out.printf("\%-7.2f \%\% rebate\%n", 12.456);  -\textgreater{} "12.46~~~~\% rebate"  // rounded and left aligned`}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{17.67cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{17.67cm}}{\bf\textcolor{white}{Implement toString();}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{17.67cm}}{The `toString` method is called for a String represenation of an object. A good toString-Method helps if you work with debuggers or loggers.} \tn 
% Row Count 3 (+ 3)
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{17.67cm}}{`public String toString() \{` \newline `~~return String.format("User \%s has \%d coins", user, coins);` \newline `\}`}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{17.67cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{17.67cm}}{\bf\textcolor{white}{Formatter and Stringbuilder}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{17.67cm}}{public StringBuilder toStringBuilder() \{ \newline   StringBuilder string = new StringBuilder(); \newline   java.util.Formatter formatter = new \seqsplit{java.util.Formatter(string);} \newline   \seqsplit{formatter.format("Account} information:\%n"); \newline   formatter.format("Name:     \%s\%n", accountName); \newline   \seqsplit{formatter.format("Balance:}  \%d\%n", balance); \newline   \seqsplit{formatter.format("Interest:} \%.2f\%\%\%n", interest/100.0); \newline   return string; \newline \}} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{17.67cm}}{Example using the \{\{link="https://docs.oracle.com/en/java/javase/12/docs/api/java.base/java/lang/StringBuilder.html"\}\}java.lang.StringBuilder\{\{/link\}\} and \{\{link="https://docs.oracle.com/en/java/javase/12/docs/api/java.base/java/util/Formatter.html"\}\}java.util.Formatter\{\{/link\}\} to build a String.}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}



\end{document}