\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{kattorres} \pdfinfo{ /Title (uf3-ficheros-java.pdf) /Creator (Cheatography) /Author (kattorres) /Subject (UF3 FICHEROS.JAVA Cheat Sheet) } % Lengths and widths \addtolength{\textwidth}{6cm} \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}{BA83D6} \definecolor{LightBackground}{HTML}{F6EFF9} \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{UF3 FICHEROS.JAVA Cheat Sheet}}}} \\ \normalsize{by \textcolor{DarkBackground}{kattorres} via \textcolor{DarkBackground}{\uline{cheatography.com/148189/cs/32304/}}} \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}kattorres \\ \uline{cheatography.com/kattorres} \\ \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 7th 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*}{2} \begin{tabularx}{8.4cm}{X} \SetRowColor{DarkBackground} \mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{FICHEROS:}} \tn \SetRowColor{white} \mymulticolumn{1}{x{8.4cm}}{Soporte de {\bf{memoria externa que almacena y registra datos,}} para mantenerlos persistentemente en todas la ejecuciones.% Row Count 3 (+ 3) } \tn \hhline{>{\arrayrulecolor{DarkBackground}}-} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{8.4cm}{x{2.56 cm} x{5.44 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{PAQUETE:}} \tn % Row 0 \SetRowColor{LightBackground} {\bf{package java.io}} & Contiene las clases para manejar {\bf{ficheros}} \tn % Row Count 2 (+ 2) \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{8.4cm}{x{2.32 cm} x{5.68 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{TIPOS DE RUTAS:}} \tn % Row 0 \SetRowColor{LightBackground} \textasciicircum{}ABSOLUTA:\textasciicircum{} & \seqsplit{`C:/Programas/unidad6/apartado1/ejemplos/FileObtenerRuta}.java` \tn % Row Count 3 (+ 3) % Row 1 \SetRowColor{white} \textasciicircum{}RELATIVA:\textasciicircum{} & \seqsplit{`Apartado1/ejemplos/FileObtenerRuta}.java` \tn % Row Count 5 (+ 2) % Row 2 \SetRowColor{LightBackground} \mymulticolumn{2}{x{8.4cm}}{{\bf{RUTA:}}} \tn % Row Count 6 (+ 1) % Row 3 \SetRowColor{white} Ruta Unix: & `/usr/bin ` \tn % Row Count 7 (+ 1) % Row 4 \SetRowColor{LightBackground} Ruta `Windows:` & `C:\textbackslash{}Windows\textbackslash{}System32` \tn % Row Count 9 (+ 2) \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{8.4cm}{x{3.2 cm} x{4.8 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{CLASE FILE:}} \tn % Row 0 \SetRowColor{LightBackground} {\bf{Ficheros y carpetas}} & Operaciones sobre rutas de ficheros existentes o no \tn % Row Count 3 (+ 3) % Row 1 \SetRowColor{white} Importar e {\bf{inicializar:}} & `file F = new file (String ruta)`\{\{br\}\} \tn % Row Count 5 (+ 2) \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{8.4cm}{x{3.04 cm} x{4.96 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{ARRAY FILE:}} \tn % Row 0 \SetRowColor{LightBackground} \mymulticolumn{2}{x{8.4cm}}{\textasciicircum{}E006listado.java\textasciicircum{} \{\{ac\}\} \{\{bt\}\} \{\{br\}\} \{\{bb\}\} \{\{bl\}\}} \tn % Row Count 2 (+ 2) % Row 1 \SetRowColor{white} {\bf{`File{[}{]} listFiles()`}} & Donde se enumeran todos los elementos de la carpeta \tn % Row Count 5 (+ 3) % Row 2 \SetRowColor{LightBackground} \mymulticolumn{2}{x{8.4cm}}{{\bf{Ejemplo de inicialización:}} \{\{ac\}\}} \tn % Row Count 6 (+ 1) % Row 3 \SetRowColor{white} \mymulticolumn{2}{x{8.4cm}}{{\bf{`File carpeta = new File("C:/Temp");`}} \{\{ac\}\}} \tn % Row Count 7 (+ 1) % Row 4 \SetRowColor{LightBackground} \mymulticolumn{2}{x{8.4cm}}{{\bf{`File {[}{]} arrayElementos = carpeta.listFiles();`}} \{\{ac\}\}} \tn % Row Count 9 (+ 2) \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{8.4cm}{x{4 cm} x{4 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{FILE BYTE:}} \tn % Row 0 \SetRowColor{LightBackground} \mymulticolumn{2}{x{8.4cm}}{\{\{ac\}\} La diferencia fundamental es que no utiliza la representación en forma de cadena de texto, sino que usa el formato binario. La ventaja es que ocupan menos espacio} \tn % Row Count 4 (+ 4) % Row 1 \SetRowColor{white} \mymulticolumn{2}{x{8.4cm}}{\textasciicircum{}{\bf{E022binario.java}}\textasciicircum{} \{\{ac\}\} \{\{bt\}\} \{\{br\}\} \{\{bb\}\} \{\{bl\}\}} \tn % Row Count 6 (+ 2) % Row 2 \SetRowColor{LightBackground} \mymulticolumn{2}{x{8.4cm}}{\{\{ac\}\}{\bf{INICIALIZACION:}}} \tn % Row Count 7 (+ 1) % Row 3 \SetRowColor{white} \mymulticolumn{2}{x{8.4cm}}{\{\{ac\}\}Clase RandomAccessFile → package java.io} \tn % Row Count 8 (+ 1) % Row 4 \SetRowColor{LightBackground} \mymulticolumn{2}{x{8.4cm}}{\{\{ac\}\}`{\bf{RandomAccessFile raf = new RandomAccessFile(File ruta, String mode);}}`} \tn % Row Count 10 (+ 2) % Row 5 \SetRowColor{white} \mymulticolumn{2}{x{8.4cm}}{\{\{ac\}\}{\bf{Leer un archivo:}}} \tn % Row Count 11 (+ 1) % Row 6 \SetRowColor{LightBackground} \mymulticolumn{2}{x{8.4cm}}{\{\{ac\}\}`{\bf{RandomAccessFile raf = new RandomAccessFile(f, "r");}}`} \tn % Row Count 13 (+ 2) % Row 7 \SetRowColor{white} \mymulticolumn{2}{x{8.4cm}}{\{\{ac\}\}{\bf{Escribir en un fichero:}}} \tn % Row Count 14 (+ 1) % Row 8 \SetRowColor{LightBackground} \mymulticolumn{2}{x{8.4cm}}{\{\{ac\}\}`{\bf{RandomAccessFile raf = new RandomAccessFile(f, "rw");}}`} \tn % Row Count 16 (+ 2) % Row 9 \SetRowColor{white} \mymulticolumn{2}{x{8.4cm}}{\{\{ac\}\}{\bf{METODOS:}}} \tn % Row Count 17 (+ 1) % Row 10 \SetRowColor{LightBackground} \mymulticolumn{2}{x{8.4cm}}{\textasciicircum{}{\bf{E022binario.java}}\textasciicircum{} \{\{ac\}\} \{\{bt\}\} \{\{br\}\} \{\{bb\}\} \{\{bl\}\}} \tn % Row Count 19 (+ 2) % Row 11 \SetRowColor{white} \mymulticolumn{2}{x{8.4cm}}{\{\{ac\}\}`{\bf{raf.writeInt();}}`} \tn % Row Count 20 (+ 1) % Row 12 \SetRowColor{LightBackground} \mymulticolumn{2}{x{8.4cm}}{\textasciicircum{}{\bf{E023sobreescribirBin.java}}\textasciicircum{} \{\{ac\}\} \{\{bt\}\} \{\{br\}\} \{\{bb\}\} \{\{bl\}\}} \tn % Row Count 22 (+ 2) % Row 13 \SetRowColor{white} \{\{ac\}\}`{\bf{setLength(long medida);}}` \{\{nobreak\}\} & \{\{ar\}\}Modifica la medida del fichero Si es menor, se borra el excedente Si es mayor, se rellena con bytes a 0 \tn % Row Count 28 (+ 6) % Row 14 \SetRowColor{LightBackground} \{\{ac\}\}`{\bf{long getFilePointer();}}` \{\{nobreak\}\} & \{\{ar\}\}Devuelve el desplazamiento actual en este archivo. \tn % Row Count 31 (+ 3) \end{tabularx} \par\addvspace{1.3em} \vfill \columnbreak \begin{tabularx}{8.4cm}{x{4 cm} x{4 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{FILE BYTE: (cont)}} \tn % Row 15 \SetRowColor{LightBackground} \mymulticolumn{2}{x{8.4cm}}{\textasciicircum{}{\bf{E0.java}}\textasciicircum{} \{\{ac\}\} \{\{bt\}\} \{\{br\}\} \{\{bb\}\} \{\{bl\}\}} \tn % Row Count 1 (+ 1) % Row 16 \SetRowColor{white} \mymulticolumn{2}{x{8.4cm}}{\{\{ac\}\}`` \{\{nobreak\}\}} \tn % Row Count 2 (+ 1) \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{8.4cm}{x{3.84 cm} x{4.16 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{FILE METODOS:}} \tn % Row 0 \SetRowColor{LightBackground} \mymulticolumn{2}{x{8.4cm}}{\textasciicircum{}E001file.java\textasciicircum{} \{\{ac\}\} \{\{bt\}\} \{\{br\}\} \{\{bb\}\} \{\{bl\}\}} \tn % Row Count 1 (+ 1) % Row 1 \SetRowColor{white} {\bf{` getParent()`}} \{\{nobreak\}\} & Devuelve el padre del `file` o null \tn % Row Count 3 (+ 2) % Row 2 \SetRowColor{LightBackground} {\bf{` getName()`}} \{\{nobreak\}\} & Devuelve el nombre del objeto dado \tn % Row Count 5 (+ 2) % Row 3 \SetRowColor{white} {\bf{`getAbsolutePath()`}} \{\{nobreak\}\} & Muestra ruta absoluta \tn % Row Count 7 (+ 2) % Row 4 \SetRowColor{LightBackground} \mymulticolumn{2}{x{8.4cm}}{\textasciicircum{}{\bf{E002estado.java}}\textasciicircum{} \{\{ac\}\} \{\{bt\}\} \{\{br\}\} \{\{bb\}\} \{\{bl\}\}} \tn % Row Count 9 (+ 2) % Row 5 \SetRowColor{white} {\bf{` isFile()`}} \{\{nobreak\}\} & {\bf{Boolean}}si la ruta del archivo abstracto es un archivo o no. \tn % Row Count 13 (+ 4) % Row 6 \SetRowColor{LightBackground} {\bf{` isDirectory()`}} \{\{nobreak\}\} & {\bf{Boolean}} comprueba si el fichero instanciado es un directorio o no \tn % Row Count 17 (+ 4) % Row 7 \SetRowColor{white} {\bf{`.exists();`}} \{\{nobreak\}\} & {\bf{Boolean}} comprueba si si existe un fichero o directorio instanciado con la clase File \tn % Row Count 22 (+ 5) % Row 8 \SetRowColor{LightBackground} \mymulticolumn{2}{x{8.4cm}}{\textasciicircum{}{\bf{E003lecturaModificacion.java}}\textasciicircum{} \{\{ac\}\} \{\{bt\}\} \{\{br\}\} \{\{bb\}\} \{\{bl\}\}} \tn % Row Count 24 (+ 2) % Row 9 \SetRowColor{white} {\bf{`long length()`}} \{\{nobreak\}\} & La función devuelve un valor largo que representa el número de bits; de lo contrario, devuelve 0L \tn % Row Count 29 (+ 5) % Row 10 \SetRowColor{LightBackground} {\bf{`long lastModified()`}} \{\{nobreak\}\} & Evalúa la última fecha de edición del elemento. \tn % Row Count 32 (+ 3) \end{tabularx} \par\addvspace{1.3em} \vfill \columnbreak \begin{tabularx}{8.4cm}{x{3.84 cm} x{4.16 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{FILE METODOS: (cont)}} \tn % Row 11 \SetRowColor{LightBackground} \mymulticolumn{2}{x{8.4cm}}{\{\{ac\}\} {\bf{`Date fecha = new Date(documento.lastModified()`}} \{\{nobreak\}\}} \tn % Row Count 2 (+ 2) % Row 12 \SetRowColor{white} \mymulticolumn{2}{x{8.4cm}}{\textasciicircum{}{\bf{E004gestionFicheros.java}}\textasciicircum{} \{\{ac\}\} \{\{bt\}\} \{\{br\}\} \{\{bb\}\} \{\{bl\}\}} \tn % Row Count 4 (+ 2) % Row 13 \SetRowColor{LightBackground} {\bf{`mkdir()`}} \{\{nobreak\}\} & crear un nuevo directorio indicado por la ruta de acceso abstracta. La función devuelve BOOLEAN \tn % Row Count 9 (+ 5) % Row 14 \SetRowColor{white} {\bf{`delete()`}} \{\{nobreak\}\} & Permite eliminar ficheros y carpetas, devuelve un boolean \tn % Row Count 12 (+ 3) % Row 15 \SetRowColor{LightBackground} \mymulticolumn{2}{x{8.4cm}}{\textasciicircum{}{\bf{E005rename.java}}\textasciicircum{} \{\{ac\}\} \{\{bt\}\} \{\{br\}\} \{\{bb\}\} \{\{bl\}\}} \tn % Row Count 14 (+ 2) % Row 16 \SetRowColor{white} \mymulticolumn{2}{x{8.4cm}}{{\bf{`renameTo(File destino)`}} \{\{nobreak\}\}} \tn % Row Count 15 (+ 1) \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{8.4cm}{x{3.92 cm} x{4.08 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{METODOS EXT:}} \tn % Row 0 \SetRowColor{LightBackground} \mymulticolumn{2}{x{8.4cm}}{\textasciicircum{}{\bf{E018vocales.java}}\textasciicircum{} \{\{ac\}\} \{\{bt\}\} \{\{br\}\} \{\{bb\}\} \{\{bl\}\}} \tn % Row Count 2 (+ 2) % Row 1 \SetRowColor{white} `{\bf{.tolowercase() ;}}`\{\{nobreak\}\} & Convierte una cadena en minúscula. \tn % Row Count 4 (+ 2) % Row 2 \SetRowColor{LightBackground} `{\bf{.toUppercase ();}}`\{\{nobreak\}\} & Convierte una cadena en mayúscula. \tn % Row Count 6 (+ 2) % Row 3 \SetRowColor{white} \mymulticolumn{2}{x{8.4cm}}{\textasciicircum{}{\bf{E019enterosOrdenados.java}}\textasciicircum{} \{\{ac\}\} \{\{bt\}\} \{\{br\}\} \{\{bb\}\} \{\{bl\}\}} \tn % Row Count 8 (+ 2) % Row 4 \SetRowColor{LightBackground} `{\bf{.sort();}}`\{\{nobreak\}\} & Ordena un arreglo, array. \tn % Row Count 10 (+ 2) \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{8.4cm}{x{3.84 cm} x{4.16 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{LECTURA / ESCRITURA FILE}} \tn % Row 0 \SetRowColor{LightBackground} \mymulticolumn{2}{x{8.4cm}}{{\bf{LECTURA: }}\{\{ac\}\} \{\{bt\}\} \{\{br\}\} \{\{bb\}\} \{\{bl\}\}} \tn % Row Count 1 (+ 1) % Row 1 \SetRowColor{white} \mymulticolumn{2}{x{8.4cm}}{Clase Scanner → package java.util (→ lectura) \{\{ac\}\}} \tn % Row Count 3 (+ 2) % Row 2 \SetRowColor{LightBackground} \mymulticolumn{2}{x{8.4cm}}{INICIALIZACIÓN: \{\{ac\}\}} \tn % Row Count 4 (+ 1) % Row 3 \SetRowColor{white} \mymulticolumn{2}{x{8.4cm}}{`{\bf{Scanner lectura = new Scanner(File f);}}`\{\{ac\}\}} \tn % Row Count 5 (+ 1) % Row 4 \SetRowColor{LightBackground} \mymulticolumn{2}{x{8.4cm}}{\textasciicircum{}{\bf{E012lectura.java}}\textasciicircum{} \{\{ac\}\} \{\{bt\}\} \{\{br\}\} \{\{bb\}\} \{\{bl\}\}} \tn % Row Count 7 (+ 2) % Row 5 \SetRowColor{white} `{\bf{f.close();}}` \{\{nobreak\}\} & Al terminar una lectura, cerrar siempre. \tn % Row Count 9 (+ 2) % Row 6 \SetRowColor{LightBackground} `{\bf{lectura.next();}}` \{\{nobreak\}\} & Lee caracteres no separados por espacios o saltos. \tn % Row Count 12 (+ 3) % Row 7 \SetRowColor{white} `{\bf{lectura.nextInt();}}` \{\{nobreak\}\} & lee una frase completa hasta el siguiente salto de linea \tn % Row Count 15 (+ 3) % Row 8 \SetRowColor{LightBackground} \mymulticolumn{2}{x{8.4cm}}{{\bf{ESCRITURA:}}\{\{ac\}\} \{\{bt\}\} \{\{br\}\} \{\{bb\}\} \{\{bl\}\}} \tn % Row Count 16 (+ 1) % Row 9 \SetRowColor{white} \mymulticolumn{2}{x{8.4cm}}{Clase PrintStream → packege java.io (→ escritura)\{\{ac\}\}} \tn % Row Count 18 (+ 2) % Row 10 \SetRowColor{LightBackground} \mymulticolumn{2}{x{8.4cm}}{INICIALIZACIÓN: \{\{ac\}\}} \tn % Row Count 19 (+ 1) % Row 11 \SetRowColor{white} \mymulticolumn{2}{x{8.4cm}}{`{\bf{PrintStream escribir = new PrintStream(File f);}}` \{\{ac\}\}} \tn % Row Count 21 (+ 2) % Row 12 \SetRowColor{LightBackground} \mymulticolumn{2}{x{8.4cm}}{\textasciicircum{}{\bf{E014escribeEnteros.java}}\textasciicircum{} \{\{ac\}\} \{\{bt\}\} \{\{br\}\} \{\{bb\}\} \{\{bl\}\}} \tn % Row Count 23 (+ 2) % Row 13 \SetRowColor{white} `{\bf{escribir.println();}}` \{\{nobreak\}\} & Hace salto de linea. \tn % Row Count 25 (+ 2) % Row 14 \SetRowColor{LightBackground} `{\bf{escribir.print();}}` \{\{nobreak\}\} & El puntador avanza un valor. \tn % Row Count 27 (+ 2) \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{8.4cm}{x{4 cm} x{4 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{SENTENCIA TRY/CATCH}} \tn % Row 0 \SetRowColor{LightBackground} \mymulticolumn{2}{x{8.4cm}}{Todas las instrucciones vinculadas a trabajar con ficheros harán uso de esta sentencia.} \tn % Row Count 2 (+ 2) % Row 1 \SetRowColor{white} {\bf{TRY \{\}}} \{\{bl\}\} & Mientras no haya excepciones se ejecuta este bloque de código \tn % Row Count 6 (+ 4) % Row 2 \SetRowColor{LightBackground} {\bf{catch (Exception e) \{\} }}\{\{bl\}\} \{\{nobreak\}\} & Se ejecuta cuando existen excepciones \tn % Row Count 9 (+ 3) \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} % That's all folks \end{multicols*} \end{document}