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% Most of the following are not required for the majority
% of cheat sheets but are needed for some symbol support.
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% Document Info
\author{sschaub}
\pdfinfo{
  /Title (java-fundamentals.pdf)
  /Creator (Cheatography)
  /Author (sschaub)
  /Subject (Java Fundamentals Cheat Sheet)
}

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% Commands
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% Header and Footer
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\fancyhead{} % Set header to blank
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\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}}
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\columnbreak
\begin{tabulary}{11cm}{L}
    \vspace{-2pt}\large{\bf{\textcolor{DarkBackground}{\textrm{Java Fundamentals Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{sschaub} via \textcolor{DarkBackground}{\uline{cheatography.com/1000/cs/464/}}}
\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}sschaub \\
  \uline{cheatography.com/sschaub} \\
  \end{tabulary}
\vfill
\columnbreak
\begin{tabulary}{5.8cm}{L}
  \SetRowColor{FootBackground}
  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Cheat Sheet}}  \\
   \vspace{-2pt}Published 17th July, 2012.\\
   Updated 12th May, 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
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% 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
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\begin{multicols*}{3}

\begin{tabularx}{5.377cm}{x{2.63781 cm} x{2.33919 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Java Data Types}}  \tn
% Row 0
\SetRowColor{LightBackground}
byte / short / int / long & -123, 10 \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
float / double & 235.13 \tn 
% Row Count 3 (+ 1)
% Row 2
\SetRowColor{LightBackground}
char & 'U' \tn 
% Row Count 4 (+ 1)
% Row 3
\SetRowColor{white}
boolean & true, false \tn 
% Row Count 5 (+ 1)
% Row 4
\SetRowColor{LightBackground}
String & "Greetings from earth" \tn 
% Row Count 7 (+ 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}{Java Statements}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{{\bf{If Statement}} \newline % Row Count 1 (+ 1)
if ( {\emph{expression}} ) \{ \newline % Row Count 2 (+ 1)
~~{\emph{statements}}  \newline % Row Count 3 (+ 1)
\} else if ( {\emph{expression}} ) \{ \newline % Row Count 4 (+ 1)
~~{\emph{statements}} \newline % Row Count 5 (+ 1)
\} else \{ \newline % Row Count 6 (+ 1)
~~{\emph{statements}} \newline % Row Count 7 (+ 1)
\} \newline % Row Count 8 (+ 1)
{\bf{While Loop}} \newline % Row Count 9 (+ 1)
while ( {\emph{expression}} ) \{ \newline % Row Count 10 (+ 1)
~~{\emph{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)
~~{\emph{statements}} \newline % Row Count 15 (+ 1)
\} while ( {\emph{expression}} ); \newline % Row Count 16 (+ 1)
{\bf{For Loop}} \newline % Row Count 17 (+ 1)
for ( int i = 0; i \textless{} {\emph{max}}; ++i) \{ \newline % Row Count 18 (+ 1)
~~{\emph{statements}} \newline % Row Count 19 (+ 1)
\} \newline % Row Count 20 (+ 1)
{\bf{For Each Loop}} \newline % Row Count 21 (+ 1)
for ( {\emph{var}} : {\emph{collection}} ) \{ \newline % Row Count 22 (+ 1)
~~{\emph{statements}} \newline % Row Count 23 (+ 1)
\} \newline % Row Count 24 (+ 1)
{\bf{Switch Statement}} \newline % Row Count 25 (+ 1)
switch ( {\emph{expression}} ) \{ \newline % Row Count 26 (+ 1)
~~case {\emph{value}}: \newline % Row Count 27 (+ 1)
~~~~{\emph{statements}} \newline % Row Count 28 (+ 1)
~~~~break; \newline % Row Count 29 (+ 1)
~~case {\emph{value2}}: \newline % Row Count 30 (+ 1)
} \tn 
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\par\addvspace{1.3em}

\vfill
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\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Java Statements (cont)}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{~~~~{\emph{statements}} \newline % Row Count 1 (+ 1)
~~~~break; \newline % Row Count 2 (+ 1)
~~default: \newline % Row Count 3 (+ 1)
~~~~{\emph{statements}} \newline % Row Count 4 (+ 1)
\} \newline % Row Count 5 (+ 1)
{\bf{Exception Handling}} \newline % Row Count 6 (+ 1)
try \{ \newline % Row Count 7 (+ 1)
~~statements; \newline % Row Count 8 (+ 1)
\} catch ({\emph{ExceptionType}} {\emph{e1}}) \{ \newline % Row Count 9 (+ 1)
~~statements; \newline % Row Count 10 (+ 1)
\} catch (Exception {\emph{e2}}) \{ \newline % Row Count 11 (+ 1)
~~catch-all statements; \newline % Row Count 12 (+ 1)
\} finally \{ \newline % Row Count 13 (+ 1)
~~statements; \newline % Row Count 14 (+ 1)
\}% Row Count 15 (+ 1)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
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\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Java Data Conversions}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{{\bf{String to Number}} \newline % Row Count 1 (+ 1)
int i = Integer.parseInt({\emph{str}}); \newline % Row Count 2 (+ 1)
double d = Double.parseDouble({\emph{str}}); \newline % Row Count 3 (+ 1)
{\bf{Any Type to String}} \newline % Row Count 4 (+ 1)
String s = String.valueOf({\emph{value}}); \newline % Row Count 5 (+ 1)
{\bf{Numeric Conversions}} \newline % Row Count 6 (+ 1)
int i = (int) {\emph{numeric expression}};% Row Count 7 (+ 1)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
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\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{2.28942 cm} x{2.68758 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Java String Methods}}  \tn
% Row 0
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{\emph{s}}.length() & length of {\emph{s}} \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
{\emph{s}}.charAt({\emph{i}}) & extract {\emph{i}}th character \tn 
% Row Count 3 (+ 2)
% Row 2
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{\emph{s}}.substring({\emph{start}}, {\emph{end}}) & substring from {\emph{start}} to {\emph{end}}-1 \tn 
% Row Count 5 (+ 2)
% Row 3
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{\emph{s}}.toUpperCase() & returns copy of {\emph{s}} in ALL CAPS \tn 
% Row Count 7 (+ 2)
% Row 4
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{\emph{s}}.toLowerCase() & returns copy of {\emph{s}} in lowercase \tn 
% Row Count 9 (+ 2)
% Row 5
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{\emph{s}}.indexOf({\emph{x}}) & index of first occurence of {\emph{x}} \tn 
% Row Count 11 (+ 2)
% Row 6
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{\emph{s}}.replace({\emph{old}}, {\emph{new}}) & search and replace \tn 
% Row Count 13 (+ 2)
% Row 7
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{\emph{s}}.split({\emph{regex}}) & splits string into tokens \tn 
% Row Count 15 (+ 2)
% Row 8
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{\emph{s}}.trim() & trims surrounding whitespace \tn 
% Row Count 17 (+ 2)
% Row 9
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{\emph{s}}.equals({\emph{s2}}) & true if s equals s2 \tn 
% Row Count 18 (+ 1)
% Row 10
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{\emph{s}}.compareTo({\emph{s2}}) & 0 if equal/+ if s \textgreater{} s2/- if s \textless{} s2 \tn 
% Row Count 20 (+ 2)
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\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{See \seqsplit{http://docs.oracle.com/javase/6/docs/api/java/lang/String.html} for more.}  \tn 
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\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{java.util.ArrayList Methods}}  \tn
% Row 0
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{\emph{l}}.add({\emph{itm}}) & Add {\emph{itm}} to list \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
{\emph{l}}.get({\emph{i}}) & Return {\emph{i}}th item \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
{\emph{l}}.size() & Return number of items \tn 
% Row Count 3 (+ 1)
% Row 3
\SetRowColor{white}
{\emph{l}}.remove({\emph{i}}) & Remove {\emph{i}}th item \tn 
% Row Count 4 (+ 1)
% Row 4
\SetRowColor{LightBackground}
{\emph{l}}.set({\emph{i}}, {\emph{val}}) & Put {\emph{val}} at position {\emph{i}} \tn 
% Row Count 6 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{ArrayList\textless{}String\textgreater{} names =  \newline ~~new ArrayList\textless{}String\textgreater{}(); \newline  \newline See \seqsplit{http://docs.oracle.com/javase/6/docs/api/java/util/ArrayList.html} for more.}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}--}
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\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{2.28942 cm} x{2.68758 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{java.util.HashMap Methods}}  \tn
% Row 0
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{\emph{m}}.put({\emph{key}},{\emph{value}}) & Inserts {\emph{value}} with {\emph{key}} \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
{\emph{m}}.get({\emph{key}}) & Retrieves value with {\emph{key}} \tn 
% Row Count 4 (+ 2)
% Row 2
\SetRowColor{LightBackground}
{\emph{m}}.containsKey({\emph{key}}) & true if contains {\emph{key}} \tn 
% Row Count 6 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{HashMap\textless{}StÂrinÂg,String\textgreater{} names = \newline ~~new HashMap\textless{}StÂrinÂg, String\textgreater{}(); \newline  \newline See \seqsplit{http://docs.oracle.com/javase/6/docs/api/java/util/HashMap.html} for more.}  \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 Hello World}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{import java.util.Date; \newline % Row Count 1 (+ 1)
public class Hello \{ \newline % Row Count 2 (+ 1)
~~public static void main(String{[}{]} args) \{ \newline % Row Count 4 (+ 2)
\seqsplit{~~~~System.out.println("Hello}, world!"); \newline % Row Count 6 (+ 2)
~~~~Date now = new Date(); \newline % Row Count 7 (+ 1)
\seqsplit{~~~~System.out.println("Time:} " + now); \newline % Row Count 9 (+ 2)
~~\} \newline % Row Count 10 (+ 1)
\}% Row Count 11 (+ 1)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{{\emph{ Save in Hello.java \newline }} Compile: {\bf{javac Hello.java}} \newline * Run: {\bf{java Hello}}}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{p{0.66832 cm} x{1.08602 cm} x{1.21133 cm} x{1.21133 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{4}{x{5.377cm}}{\bf\textcolor{white}{Java Arithmetic Operators}}  \tn
% Row 0
\SetRowColor{LightBackground}
x + y & add & x - y & subtract \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
x * y & multiply & x / y & divide \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
x \% y & modulus & ++x / x++ & increment \tn 
% Row Count 3 (+ 1)
% Row 3
\SetRowColor{white}
 &  & -{}-x / x-{}- & decrement \tn 
% Row Count 4 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}----}
\SetRowColor{LightBackground}
\mymulticolumn{4}{x{5.377cm}}{Assignment shortcuts: x {\emph{op}}= y \newline Example: x += 1 increments x}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}----}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{p{0.79363 cm} x{0.91894 cm} p{0.79363 cm} x{1.6708 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{4}{x{5.377cm}}{\bf\textcolor{white}{Java Comparison Operators}}  \tn
% Row 0
\SetRowColor{LightBackground}
x \textless{} y & Less & x \textless{}= y & Less or eq \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
x \textgreater{} y & Greater & x \textgreater{}= y & Greater or eq \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
x == y & Equal & x != y & Not equal \tn 
% Row Count 3 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}----}
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\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{1.28156 cm} x{1.73926 cm} x{1.55618 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{3}{x{5.377cm}}{\bf\textcolor{white}{Java Boolean Operators}}  \tn
% Row 0
\SetRowColor{LightBackground}
! x (not) & x \&\& y (and) & x || y (or) \tn 
% Row Count 1 (+ 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}{Java Text Formatting}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{{\bf{printf style formatting}} \newline % Row Count 1 (+ 1)
System.out.printf("Count is \%d\textbackslash{}n", count); \newline % Row Count 2 (+ 1)
s = String.format("Count is \%d", count); \newline % Row Count 3 (+ 1)
{\bf{MessageFormat style formatting}} \newline % Row Count 4 (+ 1)
s = MessageFormat.format( \newline % Row Count 5 (+ 1)
~~"At \{1,time\}, \{0\} eggs hatched.", \newline % Row Count 6 (+ 1)
~~25, new Date()); \newline % Row Count 7 (+ 1)
{\bf{Individual Numbers and Dates}} \newline % Row Count 8 (+ 1)
s = \seqsplit{NumberFormat.getCurrencyInstance()} \newline % Row Count 9 (+ 1)
~~.format(x); \newline % Row Count 10 (+ 1)
s = new SimpleDateFormat(""h:mm a"") \newline % Row Count 11 (+ 1)
~~.format(new Date()); \newline % Row Count 12 (+ 1)
s = new DecimalFormat("\#,\#\#0.00") \newline % Row Count 13 (+ 1)
~~.format(125.32);% Row Count 14 (+ 1)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{See \seqsplit{http://docs.oracle.com/javase/6/docs/api/java/text/package-frame.html} for MessageFormat and related classes}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}


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

\end{document}