\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{lena}
\pdfinfo{
  /Title (java-uf1.pdf)
  /Creator (Cheatography)
  /Author (lena)
  /Subject (JAVA-uf1 Cheat Sheet)
}

% Lengths and widths
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\addtolength{\voffset}{-2cm}
\setlength{\tabcolsep}{0.2cm} % Space between columns
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\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}{25D9C7}
\definecolor{LightBackground}{HTML}{F1FCFB}
\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-uf1 Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{lena} via \textcolor{DarkBackground}{\uline{cheatography.com/148123/cs/32272/}}}
\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}lena \\
  \uline{cheatography.com/lena} \\
  \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 2nd June, 2022.\\
   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{2.18988 cm} x{2.78712 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Tipos de datos}}  \tn
% Row 0
\SetRowColor{LightBackground}
int num = 5 & // entero \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
float num = 5.55f & // decimal simple \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
double num = 5.55d & // decimal doble \tn 
% Row Count 4 (+ 2)
% Row 3
\SetRowColor{white}
char letra = 'a' & // carácter simple \tn 
% Row Count 5 (+ 1)
% Row 4
\SetRowColor{LightBackground}
boolean  bool = true & // booleano (true or false) \tn 
% Row Count 7 (+ 2)
% Row 5
\SetRowColor{white}
String texto = "Hola" & // cadenas de caracteres \tn 
% Row Count 9 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{2.93643 cm} x{2.04057 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Operadores aritméticos}}  \tn
% Row 0
\SetRowColor{LightBackground}
suma + & // x + y \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
resta - & // x - y \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
multiplicación * & // x * y \tn 
% Row Count 3 (+ 1)
% Row 3
\SetRowColor{white}
división {\bf{/}} & // x {\bf{/}} y \tn 
% Row Count 4 (+ 1)
% Row 4
\SetRowColor{LightBackground}
resto o módulo \% & // x \% y \tn 
% Row Count 5 (+ 1)
% Row 5
\SetRowColor{white}
potencia \textasciicircum{} & // x \textasciicircum{} y \tn 
% Row Count 6 (+ 1)
% Row 6
\SetRowColor{LightBackground}
incremento ++ & // x ++ \tn 
% Row Count 7 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{2.04057 cm} x{2.93643 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Operadores lógicos (condicionales)}}  \tn
% Row 0
\SetRowColor{LightBackground}
and \&\& & // a \&\& b \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
or {\bf{||}} & // a {\bf{||}} b \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
no ! & // !a \tn 
% Row Count 3 (+ 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}{Variables - Sintaxis}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{{[}visibilidad{]} tipo nombreVariable1; \newline % Row Count 1 (+ 1)
nombreVariable1 = valor1; \newline % Row Count 2 (+ 1)
{[}visibilidad{]} tipo nombreVariable2 = valor2;% Row Count 3 (+ 1)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{1.94103 cm} x{3.03597 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Métodos de la clase Scanner}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{nextLine ( )} \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
\mymulticolumn{2}{x{5.377cm}}{next ( )} \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
nextXXXX ( ) & // depende del tipo \tn 
% Row Count 3 (+ 1)
% Row 3
\SetRowColor{white}
\mymulticolumn{2}{x{5.377cm}}{hasNext ( )} \tn 
% Row Count 4 (+ 1)
% Row 4
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{hasNextInt} \tn 
% Row Count 5 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{p{0.74655 cm} x{4.23045 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Estructuras de selección}}  \tn
% Row 0
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if & // si la condición es true \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
else & // se ejecutará si la condición es false \tn 
% Row Count 3 (+ 2)
% Row 2
\SetRowColor{LightBackground}
else if & // si la primera condición es false \tn 
% Row Count 5 (+ 2)
% Row 3
\SetRowColor{white}
\mymulticolumn{2}{x{5.377cm}}{switch} \tn 
% Row Count 6 (+ 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}{Bucles}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{{\bf{WHILE}} \newline int i = 0; \newline while (i \textless{} 5) \{ \newline   System.out.println(i); \newline   i++; \newline \} \newline  \newline {\bf{FOR}} \newline for (int i = 0; i \textless{} 5; i++) \{ \newline   System.out.println(i); \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}{Arrays}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{5.377cm}}{{\bf{Ejemplos}} \newline % Row Count 1 (+ 1)
int {[} {]} pesos; // unidimensional \newline % Row Count 2 (+ 1)
int precios {[} {]}; // unidimensional \newline % Row Count 3 (+ 1)
char {[} {]} letras = ('a', 'b', 'c'); \newline % Row Count 4 (+ 1)
String {[} {]} texto = ("Anna");% Row Count 5 (+ 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}{Recorrido de un array}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{for (int i = 0; i \textless{} edades.length; i++) \{ \newline   System.out.println(edades{[}i{]}); \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}{Strings}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{Arrays de cadenas de texto: \newline  \newline //inicialización a valor concreto \newline String{[}{]} miArray = \{"valor1", "valor2", "valor3"\}; \newline  \newline //inicialización a valor por defecto \newline String{[}{]} miArray = new String{[}5{]};} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}


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

\end{document}