\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{phon}
\pdfinfo{
  /Title (cheatcheese.pdf)
  /Creator (Cheatography)
  /Author (phon)
  /Subject (CheatCheese 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}{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{CheatCheese Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{phon} via \textcolor{DarkBackground}{\uline{cheatography.com/25871/cs/19625/}}}
\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}phon \\
  \uline{cheatography.com/phon} \\
  \end{tabulary}
\vfill
\columnbreak
\begin{tabulary}{5.8cm}{L}
  \SetRowColor{FootBackground}
  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Cheat Sheet}}  \\
   \vspace{-2pt}Published 13th May, 2019.\\
   Updated 13th May, 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{multicols*}{3}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Palindrome recursive}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{public static boolean palindromecheck(String temp) \{ \newline 	boolean result = false; \newline 	temp = temp.toLowerCase(); \newline 	temp = temp.replaceAll(" ", ""); \newline 	temp = temp.replaceAll("\textbackslash{}" ", ""); \newline 	temp = temp.replaceAll("\textbackslash{}\textbackslash{}?", ""); \newline 	temp = temp.replaceAll("!", ""); \newline 	temp = temp.replaceAll("\textbackslash{}'", ""); \newline 	temp = temp.replaceAll("\textbackslash{}\textbackslash{}.", ""); \newline 	temp = temp.replaceAll(",",""); \newline 	if (temp.length() \textgreater{} 1) \{ \newline 		if (temp.charAt(0) == \seqsplit{temp.charAt(temp.length()-1))} \{ \newline 			palindromecheck(temp.substring(1, temp.length()-1)); \newline 			result =  true; \newline 	        \} \newline 		else \{ \newline 			result = false; \newline 		\} \newline 	\} \newline 	return result; \newline \}} \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}{Sorting(Simple one)}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{public static void sorting(String{[}{]} list) \{ \newline 		for (int x = 0;x \textless{} list.length;x++) \{ \newline 			for (int y = x + 1 ;y \textless{} list.length;y++) \{ \newline 			 // indexofarray \newline 				if (list{[}x{]}.compareTo(list{[}y{]}) \textgreater{} 0) \{ \newline 					continue; \newline 				\} \newline 				else if (list{[}x{]}.compareTo(list{[}y{]}) == 0) \{ \newline 					continue; \newline 				\} \newline 				else \{ \newline 					String temp = list{[}x{]}; \newline 					list{[}x{]} = list{[}y{]}; \newline 					list{[}y{]} = temp; \newline 				\} \newline 			\} \newline 			System.out.print("Pass: "+x);printlist(list); \newline 		\} \newline 	\}} \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}{File IO (Write)}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{public class write \{ \newline 	public static void main(String{[}{]} args) \{ \newline 		BufferedWriter writer = null; \newline 		File file = new File("log.txt"); \newline 		try \{ \newline 			System.out.println("test"); \newline 			writer = new BufferedWriter(new FileWriter(file)); \newline 			writer.write("Hello World.Wat???\textbackslash{}n"); \newline 			writer.append("Hello Mars.\textbackslash{}n"); \newline 		\} \newline 		catch (FileNotFoundException e) \{ \newline 			e.printStackTrace(); \newline 		\} \newline 		catch (IOException e) \{ \newline 			e.printStackTrace(); \newline 		\} \newline 		finally \{ \newline 			try \{ \newline 				if (writer != null) \{ \newline 					writer.close(); \newline 				\} \newline 			\} \newline 			catch (IOException e) \{ \newline 				e.printStackTrace(); \newline 			\} \newline 		\} \newline 	\} \newline \}} \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}{Node recursive}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{public static void inOrderTraverse(Node root) \newline 	\{ \newline 		if (root == null) \{ \newline 		\} \newline 		else \{ \newline 			//System.out.print(" "+root.id); //pre order \newline 			inOrderTraverse(root.left); \newline 			System.out.print(" "+root.id); // in order \newline 			inOrderTraverse(root.right); \newline 			//System.out.print(" "+root.id); // post order \newline 		\} \newline 	\}} \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}{getSnippet}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{public static String getSnippet(Word root, int window) \newline 	\{ \newline 		if(root == null) return null; \newline 		StringBuilder str = new StringBuilder(); \newline 		str.append("{[}"+root+"{]} "); \newline 		Word pointer = root.getPreviousWord(); \newline 		for(int i = 0; i \textless{} window; i++) \newline 		\{	if(pointer == null) \newline 			\{ \newline 				break; \newline 			\} \newline 			else  \newline 			\{	str.insert(0, pointer.getWord()+" "); \newline 				pointer = \seqsplit{pointer.getPreviousWord();} \newline 			\} \newline 		\} \newline 		if(pointer != null) str.insert(0, "... "); \newline 		 \newline 		pointer = root.getNextWord(); \newline 		for(int i = 0; i \textless{} window; i++) \newline 		\{	if(pointer == null) \newline 			\{ \newline 				str.append("... "); \newline 				break; \newline 			\} \newline 			else  \newline 			\{	str.append(pointer.getWord()+" "); \newline 				pointer = pointer.getNextWord(); \newline 			\} \newline 		\} \newline 		if(pointer != null) str.append("... "); \newline 		 \newline 		return str.toString().trim(); \newline 	\}} \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}{How to create array of int and double}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{int a{[}{]}=new int{[}5{]}; \newline data = new Double{[}10{]};} \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}{Switch case}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{int day = 4; \newline switch (day) \{ \newline   case 6: \newline     \seqsplit{System.out.println("Today} is Saturday"); \newline     break; \newline   case 7: \newline     \seqsplit{System.out.println("Today} is Sunday"); \newline     break; \newline   default: \newline     \seqsplit{System.out.println("Looking} forward to the Weekend"); \newline \} \newline // Outputs "Looking forward to the Weekend"} \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}{Compareto}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{result will be int \newline \textgreater{} 0 : greater \newline =0 : similar \newline \textless{}0: least} \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}{isFullBinTree (Node)}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{public static boolean isFullBinTree(Node root) \newline 	\{ \newline 		boolean result = false; \newline 		if (root == null) \{ \newline 			result = true; \newline 		\} \newline 		else \{ \newline 			if (root.left != null \&\& root.right != null) \{ \newline 				if (!isFullBinTree(root.left) || !isFullBinTree(root.right)) \{ \newline 					result = false; \newline 				\} \newline 				else \{ \newline 					result = true; \newline 				\} \newline 			\} \newline 			else if (root.left == null \&\& root.right == null) \{ \newline 				result = true; \newline 			\} \newline 			else \{ \newline 				result = false; \newline 			\} \newline 		\} \newline 		return result; \newline 	\}} \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}{binaryfind}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{public static  boolean binaryfind(int{[}{]}{[}{]} matrix, int window) \{ \newline     boolean check = false; \newline     int length = matrix{[}0{]}.length * matrix{[}1{]}.length; \newline 	int low = 0; \newline 	int high = sortedWords.size() - 1; \newline 	int mid = 0; \newline 	while (low \textless{}= high) \{ \newline 		mid = low + ((high - low)/2); \newline 		if (sortednumber{[}mid{]} == target) \{ \newline 			return true; \newline 		\} \newline 		else if (sortednumber{[}mid{]} \textless{} target) \{ \newline 			low = mid + 1; \newline 		\} \newline 		else \{ \newline 			high = mid - 1; \newline 		\} \newline 	\} \newline 	return check;	 \newline \}} \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}{File IO (Read apache)}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{//load file \newline 		String text = null; \newline 		try \{ \newline 			text = \seqsplit{FileUtils.readFileToString(new} File(filename), "UTF-8"); \newline 		\} catch (IOException e) \{ \newline 			e.printStackTrace(); \newline 		\} \newline 		//clean text \newline 		text = text.toLowerCase().replaceAll("\textbackslash{}\textbackslash{}W+", " ").replaceAll("\textbackslash{}\textbackslash{}s\textbackslash{}\textbackslash{}w\textbackslash{}\textbackslash{}s", " "); \newline 		 \newline 		//System.out.println(text); \newline 		//tokenize words \newline 		String{[}{]} tokens = text.split("\textbackslash{}\textbackslash{}s+"); \newline 		 \newline 		//store tokens in words \newline 		sortedWords = new ArrayList\textless{}Word\textgreater{}(); \newline 		for(int i = 0; i \textless{} tokens.length; i++)  \newline 		\{	sortedWords.add(new Word(tokens{[}i{]},i)); \newline 			if(i \textgreater{} 0)  \newline 			\{	sortedWords.get(i).setPreviousWord(sortedWords.get(i-1)); \newline 				sortedWords.get(i-1).setNextWord(sortedWords.get(i)); \newline 			\} \newline 		\} \newline 		//sort word \newline 		Collections.sort(sortedWords);} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}


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

\end{document}