\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{JoeMad}
\pdfinfo{
  /Title (joes-java.pdf)
  /Creator (Cheatography)
  /Author (JoeMad)
  /Subject (Joes 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}{A3A3A3}
\definecolor{LightBackground}{HTML}{F3F3F3}
\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{Joes Java Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{JoeMad} via \textcolor{DarkBackground}{\uline{cheatography.com/53977/cs/14501/}}}
\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}JoeMad \\
  \uline{cheatography.com/joemad} \\
  \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 28th January, 2018.\\
   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*}{3}

\begin{tabularx}{5.377cm}{x{1.84149 cm} x{3.13551 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{String Methods}}  \tn
% Row 0
\SetRowColor{LightBackground}
\seqsplit{.toUpperCase()} & converts string to upper case \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
\seqsplit{.toLowercase()} & Converts string to lower case \tn 
% Row Count 4 (+ 2)
% Row 2
\SetRowColor{LightBackground}
\seqsplit{.indexof('ch')} & Index of the selected letter \tn 
% Row Count 6 (+ 2)
% Row 3
\SetRowColor{white}
.substring(x,y) & between values (y exclude) \tn 
% Row Count 8 (+ 2)
% Row 4
\SetRowColor{LightBackground}
.length() & returns the strings length \tn 
% Row Count 10 (+ 2)
% Row 5
\SetRowColor{white}
.replace(old,new) & replaces old char with new \tn 
% Row Count 12 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{import java.util.Scanner;  \newline Scanner input= new Scanner(System.in);   \newline  \newline Scanner Methods:  \newline .nextLine() ends with line  \newline .next() ends with white space  \newline .nextDouble()  \newline .nextInt()}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Import-ant statements}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{{\bf{Import Statements}} \newline % Row Count 1 (+ 1)
import java.util.*; \newline % Row Count 2 (+ 1)
import java.text.*; \newline % Row Count 3 (+ 1)
import java.swing.*; \newline % Row Count 4 (+ 1)
import java.awt.*; \newline % Row Count 5 (+ 1)
import java.swing.JFrame; \newline % Row Count 6 (+ 1)
import java.util.random; \newline % Row Count 7 (+ 1)
import java.util.scanner; \newline % Row Count 8 (+ 1)
DecimalFormat df = new DecimalFormat(0.\#\#); \newline % Row Count 9 (+ 1)
RandomRange r = new RandomRange(); \newline % Row Count 10 (+ 1)
Scanner sc = new Scanner(System.in); \newline % Row Count 11 (+ 1)
(sc.nextint, nextline)etc% Row Count 12 (+ 1)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Loops}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{{\bf{ If Statement}} \newline % Row Count 1 (+ 1)
if ( expression ) \{ \newline % Row Count 2 (+ 1)
  statements  \newline % Row Count 3 (+ 1)
\} else if ( expression ) \{ \newline % Row Count 4 (+ 1)
  statements \newline % Row Count 5 (+ 1)
\} else \{ \newline % Row Count 6 (+ 1)
  statements \newline % Row Count 7 (+ 1)
\} \newline % Row Count 8 (+ 1)
{\bf{While Loop}} \newline % Row Count 9 (+ 1)
while ( expression ) \{ \newline % Row Count 10 (+ 1)
  statements \newline % Row Count 11 (+ 1)
\} \newline % Row Count 12 (+ 1)
{\bf{Do-While Loop}} \newline % Row Count 13 (+ 1)
do \{ \newline % Row Count 14 (+ 1)
  statements \newline % Row Count 15 (+ 1)
\} while ( expression ); \newline % Row Count 16 (+ 1)
{\bf{For Loop}} \newline % Row Count 17 (+ 1)
for ( int i = 0; i \textless{} max; ++i) \{ \newline % Row Count 18 (+ 1)
  statements \newline % Row Count 19 (+ 1)
\} \newline % Row Count 20 (+ 1)
{\bf{Switch Statement}} \newline % Row Count 21 (+ 1)
switch ( expression ) \{ \newline % Row Count 22 (+ 1)
  case value: \newline % Row Count 23 (+ 1)
    statements \newline % Row Count 24 (+ 1)
    break; \newline % Row Count 25 (+ 1)
  case value2: \newline % Row Count 26 (+ 1)
    statements \newline % Row Count 27 (+ 1)
    break; \newline % Row Count 28 (+ 1)
  default: \newline % Row Count 29 (+ 1)
    statements \newline % Row Count 30 (+ 1)
} \tn 
\end{tabularx}
\par\addvspace{1.3em}

\vfill
\columnbreak
\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Loops (cont)}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{\}% Row Count 1 (+ 1)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{2.38896 cm} x{2.58804 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Math methods}}  \tn
% Row 0
\SetRowColor{LightBackground}
Math.pow(xy) & Math.sqrt(x) \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
Math.PI() & Math.log(x) \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
Math.random() * max+min & but util random is better \tn 
% Row Count 4 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Class Diagram (UML)}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{p{5.377cm}}{\vspace{1px}\centerline{\includegraphics[width=5.1cm]{/web/www.cheatography.com/public/uploads/joemad_1517111322_diagram.png}}} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{+' = Public , '-' = Private \newline underlined = Static \newline  \newline // Constructors have the same name as the class. \newline // if return type is 'void' , no return statement is required.}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Things That May Help}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{{\bf{Default Construct}} \newline % Row Count 1 (+ 1)
public "name thing"()\{ \newline % Row Count 2 (+ 1)
\} \newline % Row Count 3 (+ 1)
{\bf{Constructor}} \newline % Row Count 4 (+ 1)
public "name thing"(int x, string y)\{ \newline % Row Count 5 (+ 1)
datafield x = x; \newline % Row Count 6 (+ 1)
datafield y = y; \newline % Row Count 7 (+ 1)
\} \newline % Row Count 8 (+ 1)
{\bf{Mutator}} \newline % Row Count 9 (+ 1)
public void setThing( string thing)\{ \newline % Row Count 10 (+ 1)
datafield thing = thing; \newline % Row Count 11 (+ 1)
\} \newline % Row Count 12 (+ 1)
{\bf{Accessor}} \newline % Row Count 13 (+ 1)
public string getThing()\{ \newline % Row Count 14 (+ 1)
return thing; \newline % Row Count 15 (+ 1)
\} \newline % Row Count 16 (+ 1)
{\bf{Creating a new instance}} \newline % Row Count 17 (+ 1)
(class name) "instance name" = new (Class name); \newline % Row Count 18 (+ 1)
{\emph{alternatively you can pass data of instance to the constructor (non default) like this}} \newline % Row Count 20 (+ 2)
(class name) "instance name" = new (Class name)(variables matching input parameter); \newline % Row Count 22 (+ 2)
{\bf{Calling a method / passing it data}} \newline % Row Count 23 (+ 1)
\seqsplit{instance.methodname(variable);} \newline % Row Count 24 (+ 1)
or \newline % Row Count 25 (+ 1)
Instance1.setName("Ben Dover");% Row Count 26 (+ 1)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}


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

\end{document}