\documentclass[10pt,a4paper]{article}

% Packages
\usepackage{fancyhdr}           % For header and footer
\usepackage{multicol}           % Allows multicols in tables
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\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 (java-basic-intro.pdf)
  /Creator (Cheatography)
  /Author (phon)
  /Subject (Java basic intro Cheat Sheet)
}

% Lengths and widths
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% the right line height in the tables
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% Commands
\newcommand{\SetRowColor}[1]{\noalign{\gdef\RowColorName{#1}}\rowcolor{\RowColorName}} % Shortcut for row colour
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\color{TextColor}

% Header and Footer
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\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}}
    }
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\columnbreak
\begin{tabulary}{11cm}{L}
    \vspace{-2pt}\large{\bf{\textcolor{DarkBackground}{\textrm{Java basic intro Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{phon} via \textcolor{DarkBackground}{\uline{cheatography.com/25871/cs/8971/}}}
\end{tabulary}
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\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 5th September, 2016.\\
   Updated 12th March, 2019.\\
   Page {\thepage} of \pageref{LastPage}.
\end{tabulary}
\vfill
\columnbreak
\begin{tabulary}{5.8cm}{L}
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  \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*}{2}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Swap}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{public static void swap(int{[}{]} list, int e1, int e2) \{ \newline % Row Count 2 (+ 2)
        int{[}{]} mylist = \{1, 2, 3, 4, 5\}; \newline % Row Count 3 (+ 1)
        int{[}{]} mylist2 = new int{[}9{]}; \newline % Row Count 4 (+ 1)
        int temp; \newline % Row Count 5 (+ 1)
        temp = mylist{[}e1{]}; \newline % Row Count 6 (+ 1)
        mylist2{[}e2{]} = mylist{[}e1{]}; \newline % Row Count 7 (+ 1)
        mylist2{[}e2{]} = temp; \newline % Row Count 8 (+ 1)
        for (int i : mylist)\{ \newline % Row Count 9 (+ 1)
            System.out.println(i); \newline % Row Count 10 (+ 1)
        \}% Row Count 11 (+ 1)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Lab04 MyDate}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{public class MyDate \{ \newline 	private int year; \newline 	private int month; \newline 	private int day; \newline 	private int objectNumber; \newline 	static int objectCounter; \newline 	static String{[}{]} strMonths = \{ "January", "February", \newline 			"March", "April", "May", "June", "July", "August", "September", "October", "November", \newline 			"December"\}; \newline 	MyDate()\{ \newline 		this.setDate(1900,1,1); \newline 		objectCounter++; \newline 		objectNumber = objectCounter; \newline 	\} \newline 	MyDate(int aYear,int aMonth,int aDay)\{ \newline 		this.setDate(aYear, aMonth, aDay); \newline 		objectCounter++; \newline 		objectNumber = objectCounter; \newline 	\} \newline 	 \newline 	public int getObjectNumber() \{ \newline 		return objectNumber; \newline 	\} \newline 	public void setDate(int aYear,int aMonth,int aDay) \{ \newline 		this.setYear(aYear); \newline 		this.setMonth(aMonth); \newline 		this.setDay(aDay); \newline 	\} \newline 	public void setYear(int aYear) \{ \newline 		year = aYear; \newline 	\} \newline 	public void setMonth(int aMonth) \{ \newline 		month = aMonth; \newline 	\} \newline 	public void setDay(int aDay) \{ \newline 		day = aDay; \newline 	\} \newline 	public int getYear() \{ \newline 		return year; \newline 	\} \newline 	public int getMonth() \{ \newline 		return month; \newline 	\} \newline 	public int getDay() \{ \newline 		return day; \newline 	\} \newline 	public static int yearDiff (MyDate start, MyDate end) \{ \newline 		int amonth = start.month; \newline 		int ayear = start.year; \newline 		int counter = 0; \newline 		int result = 0; \newline 		if (end.year \textgreater{}= start.year) \{ \newline 				boolean process = true; \newline 				while(process == true) \{ \newline 					if(amonth == 12) \{ \newline 						amonth = 1; \newline 						ayear++; \newline 						counter++; \newline 					\} \newline 					else if (amonth == end.month \&\& ayear == end.year) \{ \newline 						process = false; \newline 					\} \newline 					else \{ \newline 						amonth++; \newline 						counter++; \newline 					\} \newline 				\} \newline 				if (start.day \textgreater{} end.day) \{ \newline 					counter-{}-; \newline 				\} \newline 				result = counter / 12; \newline 		\} \newline 		else \{ \newline 			result = -1; \newline 		\} \newline 		return result; \newline 	\} \newline  \newline 	@Override \newline 	public String toString() \{ \newline 		return day +" "+ strMonths{[}month - 1{]} +" "+ year; \newline 	\} \newline 	 \newline 	MyDate nextDay() \{ \newline 		if (this.getMonth() == 12) \{ \newline 			this.setDate(this.getYear() + 1,1,1); \newline 		\} \newline 		else \{ \newline 			if(this.getMonth() == 4 || this.getMonth() == 6 || this.getMonth() == 9 || this.getMonth() == 11) \{ \newline 				if(this.getDay() == 30) \{ \newline 					this.setMonth(this.getMonth() + 1); \newline 					this.setDay(1); \newline 				\} \newline 				else \{ \newline 					this.setDay(this.getDay() + 1); \newline 				\} \newline 			\} \newline 			else if(this.getMonth() != 2)\{ \newline 				if(this.getDay() == 31) \{ \newline 					this.setDay(1); \newline 					this.setMonth(this.getMonth() + 1); \newline 				\} \newline 				else \{ \newline 					this.setDay(this.getDay() + 1); \newline 				\} \newline 			\} \newline 			else \{ \newline 				if \seqsplit{(isLeapYear(this.getYear())} == true \&\& this.getDay() == 29) \{ \newline 					this.setMonth(this.getMonth() + 1); \newline 					this.setDay(1); \newline 				\} \newline 				else if \seqsplit{(isLeapYear(this.getYear())} == false \&\& this.getDay() == 28) \{ \newline 					this.setMonth(this.getMonth() + 1); \newline 					this.setDay(1); \newline 				\} \newline 				else \{ \newline 					this.setDay(this.getDay() + 1); \newline 				\} \newline 			\} \newline 		\} \newline 		return this; \newline 	\} \newline 	 \newline 	MyDate nextMonth()\{ \newline 		if (this.getMonth() == 12) \{ \newline 			this.setMonth(1); \newline 			this.setYear(this.getYear() + 1); \newline 		\} \newline 		else if (this.getMonth() == 3 || this.getMonth() == 5 || this.getMonth() == 8 || this.getMonth() == 10) \{ \newline 			if(this.getDay() == 31) \{ \newline 				this.setDate(this.getYear(), this.getMonth() + 1, 30); \newline 			\} \newline 			else \{ \newline 				this.setMonth(this.getMonth() + 1); \newline 			\} \newline 		\} \newline 		else if (this.getMonth() == 1)\{ \newline 			if \seqsplit{(isLeapYear(this.getYear())} == true \&\& this.getDay() \textgreater{}= 29) \{ \newline 				this.setDate(this.getYear(),this.getMonth() + 1, 29); \newline 			\} \newline 			else \{ \newline 				this.setDate(this.getYear(),this.getMonth() + 1, 28); \newline 			\} \newline 		\} \newline 		else\{ \newline 			this.setMonth(this.getMonth() + 1); \newline 		\} \newline 		return this; \newline 	\} \newline 	 \newline 	MyDate nextYear() \{ \newline 		if \seqsplit{(isLeapYear(this.getYear())} == true \&\& this.getDay() == 29 \&\& this.getMonth() == 2) \{ \newline 			this.setDate(this.getYear() + 1, 2 , 28); \newline 		\} \newline 		else \{ \newline 			this.setYear(this.getYear() + 1);			 \newline 		\} \newline 		return this; \newline 	\} \newline 	MyDate previousDay() \{ \newline 		if (this.getMonth() == 1 \&\& this.getDay() == 1) \{ \newline 			this.setYear(this.getYear() - 1); \newline 			this.setMonth(12); \newline 			this.setDay(31); \newline 		\} \newline 		else \{ \newline 			if(this.getMonth() == 5 || this.getMonth() == 7 || this.getMonth() == 10 || this.getMonth() == 12) \{ \newline 				if (this.getDay() == 1) \{ \newline 					this.setMonth(this.getMonth() - 1); \newline 					this.setDay(30); \newline 				\} \newline 				else \{ \newline 					this.setDay(this.getDay() - 1); \newline 				\} \newline 			\} \newline 			else if (this.getMonth() != 3) \{ \newline 				if (this.getDay() == 1) \{ \newline 					this.setDate(this.getYear(), this.getMonth() - 1, 31); \newline 				\} \newline 				else \{ \newline 					this.setDay(this.getDay() - 1); \newline 				\} \newline 			\} \newline 			else \{ \newline 				if(isLeapYear(this.getYear()) == true \&\& this.getDay() == 1)\{ \newline 					this.setDate(this.getYear(),this.getMonth() - 1, 29); \newline 				\} \newline 				else if (this.getDay() == 1) \{ \newline 					this.setDate(this.getYear(), this.getMonth() - 1, 28); \newline 				\} \newline 				else \{ \newline 					this.setDay(this.getDay() - 1); \newline 				\} \newline 			\} \newline 		\} \newline 		return this; \newline 	\} \newline 	 \newline 	MyDate previousMonth() \{ \newline 		if (this.getMonth() == 1) \{ \newline 			this.setMonth(12); \newline 			this.setYear(this.getYear() - 1); \newline 		\} \newline 		else if (this.getMonth() == 5 || this.getMonth() == 7 || this.getMonth() == 10 || this.getMonth() == 12) \{ \newline 			if(this.getDay() == 31) \{ \newline 				this.setDate(this.getYear(), this.getMonth() - 1, 30); \newline 			\} \newline 			else \{ \newline 				this.setMonth(this.getMonth() - 1); \newline 			\} \newline 		\} \newline 		else if (this.getMonth() == 3)\{ \newline 			if \seqsplit{(isLeapYear(this.getYear())} == true \&\& this.getDay() \textgreater{}= 29) \{ \newline 				this.setDate(this.getYear(),this.getMonth() - 1, 29); \newline 			\} \newline 			else \{ \newline 				this.setDate(this.getYear(),this.getMonth() - 1, 28); \newline 			\} \newline 		\} \newline 		else\{ \newline 			this.setMonth(this.getMonth() - 1); \newline 		\} \newline 		return this; \newline 	\} \newline 	 \newline 	MyDate previousYear() \{ \newline 		if \seqsplit{(isLeapYear(this.getYear())} == true \&\& this.getDay() == 29 \&\& this.getMonth() == 2) \{ \newline 			this.setDate(this.getYear() - 1, 2 , 28); \newline 		\} \newline 		else \{ \newline 			this.setYear(this.getYear() -1);			 \newline 		\} \newline 		return this;	 \newline 	\} \newline 	static boolean isLeapYear(int Year) \{ \newline 		if (Year \% 4 != 0) \{ \newline 			return false; \newline 		\} \newline 		else if (Year \% 100 != 0) \{ \newline 			return true; \newline 		\} \newline 		else if (Year \% 400 != 0) \{ \newline 			return false; \newline 		\} \newline 		else \{ \newline 			return true; \newline 		\} \newline 	\} \newline \}} \tn 
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\par\addvspace{1.3em}

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\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Range of  Data Types}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{Byte = – 128 to 127 {[}-2\textasciicircum{}7 to 2\textasciicircum{}7 - 1{]} \newline % Row Count 1 (+ 1)
Short = – 32,768 to 32,767 {[}-2\textasciicircum{}15 to 2\textasciicircum{}15 - 1{]} \newline % Row Count 3 (+ 2)
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} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Lab04 Person}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{import java.time.LocalDate; \newline  \newline public class Person \{ \newline 	private String firstname; \newline 	private String lastname; \newline 	private MyDate birthday = new MyDate(); \newline 	 \newline 	Person(String aFirstname, String aLastname)\{ \newline 		firstname = aFirstname; \newline 		lastname = aLastname; \newline 	\} \newline 	 \newline 	Person(String aFirstname, String aLastname, int aYear, int aMonth, int aDay)\{ \newline 		firstname = aFirstname; \newline 		lastname = aLastname; \newline 		birthday.setDate(aYear, aMonth, aDay); \newline 	\} \newline 	public int getAge(MyDate aDate) \{ \newline 		int age = MyDate.yearDiff(birthday, aDate); \newline 		return age; \newline 	\} \newline 	public boolean isEligible(MyDate elecDate) \{ \newline 		if \seqsplit{(MyDate.yearDiff(this.birthday}, elecDate) \textgreater{}= 18) \{ \newline 			return true; \newline 		\} \newline 		else \{ \newline 			return false; \newline 		\} \newline 	\} \newline 	public void printPersonInfo() \{ \newline 		System.out.println("Person: "+firstname+" "+lastname); \newline 		System.out.println("Birthday: "+birthday.getDay()+" "+MyDate.strMonths{[}birthday.getMonth() - 1{]}+" "+birthday.getYear()); \newline 	\} \newline  \newline \}} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Lab04}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{import java.util.Scanner; \newline public class ElectionTester \{ \newline 	public static void main(String{[}{]} args) \{ \newline 		MyDate election = new MyDate(2019, 3, 24);		 \newline 		Person a = new Person("Lalisa", "Manoban", 1997, 3, 27); \newline 		printPersonElectionInfo(a, election);	 \newline 		Person b = new Person("Nuda", "Inter", 2012, 1, 16); \newline 		printPersonElectionInfo(b, election);			 \newline 		Person c = new Person("Hallo", "World",1998,2,1); \newline 		printPersonElectionInfo(c, election);	// \newline 		boolean processing = true; \newline 		while(processing == true) \{ \newline 			String firstname; \newline 			String lastname; \newline 			int year; \newline 			int month; \newline 			int day; \newline 			Scanner in = new Scanner(System.in); \newline 			System.out.print("Enter firstname or type 'q' to exit:"); \newline 			String dataA = in.nextLine(); \newline 			if(dataA.equals("q") == true) \{ \newline 				processing = false; \newline 				break; \newline 			\} \newline 			else \{ \newline 				firstname = dataA; \newline 				Scanner in1 = new Scanner(System.in); \newline 				System.out.print("Enter lastname:"); \newline 				lastname = in1.nextLine(); \newline 				Scanner in3 = new Scanner(System.in); \newline 				System.out.print("Enter year of birthday: "); \newline 				year = in3.nextInt(); \newline 				Scanner in4 = new Scanner(System.in); \newline 				System.out.print("Enter month of birthday: "); \newline 				month = in4.nextInt(); \newline 				Scanner in5 = new Scanner(System.in); \newline 				System.out.print("Enter day of birthday: "); \newline 				day = in5.nextInt(); \newline 				Person data = new Person(firstname,lastname,year,month,day); \newline 				printPersonElectionInfo(data, election); \newline 			\} \newline 		\} \newline 		System.out.println("Exit the program. Thank you."); \newline 	\} \newline 	public static void \seqsplit{printPersonElectionInfo(Person} p, MyDate election) \{ \newline 		p.printPersonInfo(); \newline 		System.out.println("Age: " + p.getAge(election)); \newline 		if(p.isEligible(election)) \newline 			System.out.println("This person is eligible to vote."); \newline 		else \newline 			System.out.println("This person is NOT eligible to vote"); \newline 		 \newline 		System.out.println("-{}-{}-{}-{}-{}-{}-{}-{}-{}-{}-{}-{}-{}-{}-{}-{}-{}-{}-{}-{}-{}-{}-{}-{}-{}-{}-{}-{}-{}-{}-{}-{}-{}--"); \newline 	\} \newline \}} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
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\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{p{1.52 cm} p{0.76 cm} x{5.32 cm} }
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% Row 0
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// & = & / \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
/t & = & tap \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
/* & = & comment \tn 
% Row Count 3 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}---}
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\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
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\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Loop}}  \tn
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\mymulticolumn{1}{x{8.4cm}}{{\bf{while loop}} \newline % Row Count 1 (+ 1)
        int x = 1; \newline % Row Count 2 (+ 1)
        while (x \textless{} 10) \{ \newline % Row Count 3 (+ 1)
            System.out.println(x); \newline % Row Count 4 (+ 1)
            x++; \newline % Row Count 5 (+ 1)
{\bf{for loop}} \newline % Row Count 6 (+ 1)
        for (int a = 0; a \textless{} 10; a++)\{ \newline % Row Count 7 (+ 1)
            System.out.println(a); \newline % Row Count 8 (+ 1)
{\bf{Enchanted for loop}} \newline % Row Count 9 (+ 1)
    int number{[}{]} = \{ 2, 3, 4, 5, 6, 7, 8, 9, 10, 11\}; \newline % Row Count 11 (+ 2)
    for (int a: number) \{ \newline % Row Count 12 (+ 1)
      System.out.println(a);  \newline % Row Count 13 (+ 1)
{\bf{while..do loop}} \newline % Row Count 14 (+ 1)
        int x = 1; \newline % Row Count 15 (+ 1)
        do\{ \newline % Row Count 16 (+ 1)
            System.out.println( x ); \newline % Row Count 17 (+ 1)
            x++; \newline % Row Count 18 (+ 1)
            \} \newline % Row Count 19 (+ 1)
        while( x \textless{} 10 );% Row Count 20 (+ 1)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}


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

\end{document}