\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{yuyu}
\pdfinfo{
  /Title (java.pdf)
  /Creator (Cheatography)
  /Author (yuyu)
  /Subject (Java 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}{031CFF}
\definecolor{LightBackground}{HTML}{EFF0FF}
\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}{yuyu} via \textcolor{DarkBackground}{\uline{cheatography.com/30216/cs/8967/}}}
\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}yuyu \\
  \uline{cheatography.com/yuyu} \\
  \end{tabulary}
\vfill
\columnbreak
\begin{tabulary}{5.8cm}{L}
  \SetRowColor{FootBackground}
  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Cheat Sheet}}  \\
   \vspace{-2pt}Published 4th September, 2016.\\
   Updated 8th 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*}{3}

\begin{tabularx}{5.377cm}{x{1.04517 cm} x{3.93183 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Data Types}}  \tn
% Row 0
\SetRowColor{LightBackground}
byte & 8 bits \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
short & 16 bits \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
int & 32 bits \tn 
% Row Count 3 (+ 1)
% Row 3
\SetRowColor{white}
long & 64 bits \tn 
% Row Count 4 (+ 1)
% Row 4
\SetRowColor{LightBackground}
boolean & ( no bit just true/ false) \tn 
% Row Count 5 (+ 1)
% Row 5
\SetRowColor{white}
char & 16 bit unicode \tn 
% Row Count 6 (+ 1)
% Row 6
\SetRowColor{LightBackground}
float & 32 bit decimal \tn 
% Row Count 7 (+ 1)
% Row 7
\SetRowColor{white}
double & 64 bit decimal \tn 
% Row Count 8 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Swap}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{package com.company; \newline  \newline import java.lang.System; \newline  \newline public class Main \{ \newline  \newline     public static void swap(int{[}{]} list, int e1, int e2) \newline     \{ \newline         int temp; \newline         temp = list{[}e1{]}; \newline         list{[}e1{]} = list{[}e2{]}; \newline         list{[}e2{]} = temp; \newline  \newline         System.out.print("\textbackslash{}nafter swap: "); \newline         for (int i = 0; i \textless{} 5; i++) \newline         \{ \newline             System.out.print(list{[}i{]} + " "); \newline         \} \newline  \newline     \} \newline  \newline     public static void main(String{[}{]} args) \newline     \{ \newline         int {[}{]} mylist = new int {[}{]} \{1, 2, 3, 4, 5\}; \newline  \newline         System.out.print("before swap: "); \newline         for (int i = 0; i \textless{} 5; i++) \newline         \{ \newline             System.out.print(mylist{[}i{]} + " "); \newline         \} \newline  \newline         swap(mylist, 1, 2); \newline         swap(mylist, 0, 4); \newline         swap(mylist, 1, 3); \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}{notes}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{/n = new line \newline % Row Count 1 (+ 1)
/t = tap  \newline % Row Count 2 (+ 1)
/" = " \newline % Row Count 3 (+ 1)
/* = multiple \newline % Row Count 4 (+ 1)
Make new class: \newline % Row Count 5 (+ 1)
Click src \textgreater{} main \textgreater{} new \textgreater{} Java class (then type the code)% Row Count 7 (+ 2)
} \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}{Arrays}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{- List use when shopping \newline - can make 2 ways: \newline  \newline int{[}{]} ex1 = new int {[}3{]}; \newline ex1{[}0{]}= 1; \newline ex2{[}1{]}= 2; \newline ex3{[}2{]}= 3;} \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}{While loops}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{While loops \newline  \newline         int count = 0; \newline         while (count \textless{} mylist.lenght) \{ \newline             System.out.print( mylist{[}count{]} + ""); \newline              \newline             count ++;} \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}{Do...While}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{- It make the code run and check the condition. \newline (if the condition correct or not and have 1 letter) \newline  \newline int count=0; \newline do\{ \newline          System.out.print(count + " "); \newline          count ++ ; \newline \}while (count \textless{} 10); \newline  \newline Ans 0 1 2 3 4 5 6 7 8 9} \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}{Java Programming Process}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{Java is a high level programming language that is readable by human called JVM ( Java Virtual Machine ). \newline % Row Count 3 (+ 3)
Compiler - translate the program into machine language that can be executed directly on the computer. \newline % Row Count 6 (+ 3)
(called native compiler because it produces on executable). \newline % Row Count 8 (+ 2)
Java bytecodes - the java complier translate your java program to be an intermediate level, which can be executed only by JVM. \newline % Row Count 11 (+ 3)
JVM is the another run program of Java. It referred to Java runtime. \newline % Row Count 13 (+ 2)
The standard environment is distribute by Oracle and is called the Java runtime environment (JRE). \newline % Row Count 15 (+ 2)
Java runtime a program that execute compiled Java byte codes. \newline % Row Count 17 (+ 2)
JDK (Java Development Kit) contains a complete class library of utilities that help you accomplish most common tasks.% Row Count 20 (+ 3)
} \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}{String}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{String (same with array int but int use for the number but string use for word.) \newline % Row Count 2 (+ 2)
String name = "Yuyu"% Row Count 3 (+ 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}{Char}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{Char is same with string but char for only letter!! \newline % Row Count 2 (+ 2)
String letter = "A";% Row Count 3 (+ 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}{For loops}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{For loops (do everything in () ) \newline             Characters \newline             String name = "yuyu"; \newline                for (char y : name.toCharArray())\{ \newline                    System.out.print(y + " "); \newline                \} \newline             Ans y u y u  \newline                      \newline                 int {[}{]} mylist = \{2,4,6\}; \newline                 for (int i = 0; i \textless{} mylist.length; i++) \newline                 \{ \newline                     System.out.print( mylist {[}i{]} + " "); \newline                 \} \newline             Ans 2 4 6} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}


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

\end{document}