\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{Lina Stappaerts (HoneyLavender)} \pdfinfo{ /Title (pro-klassen-en-objecten.pdf) /Creator (Cheatography) /Author (Lina Stappaerts (HoneyLavender)) /Subject (PRO | Klassen en objecten 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}{A3A3A3} \definecolor{LightBackground}{HTML}{F3F3F3} \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{PRO | Klassen en objecten Cheat Sheet}}}} \\ \normalsize{by \textcolor{DarkBackground}{Lina Stappaerts (HoneyLavender)} via \textcolor{DarkBackground}{\uline{cheatography.com/144918/cs/31169/}}} \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}Lina Stappaerts (HoneyLavender) \\ \uline{cheatography.com/honeylavender} \\ \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 14th March, 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} \SetRowColor{DarkBackground} \mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Code Snippets}} \tn % Row 0 \SetRowColor{LightBackground} \mymulticolumn{1}{x{5.377cm}}{1. Attribuut} \tn % Row Count 1 (+ 1) % Row 1 \SetRowColor{white} \mymulticolumn{1}{x{5.377cm}}{2. Methode} \tn % Row Count 2 (+ 1) % Row 2 \SetRowColor{LightBackground} \mymulticolumn{1}{x{5.377cm}}{3. Object} \tn % Row Count 3 (+ 1) \hhline{>{\arrayrulecolor{DarkBackground}}-} \SetRowColor{LightBackground} \mymulticolumn{1}{x{5.377cm}}{1. {\bf{public (type var.) NaamVanAttribuut}} \newline vb. public string Naam; \newline \newline 2. {\bf{public (type var.) NaamVanAttribuut}} \newline vb. public int AfstandWinkel \{{\bf{return}} meter - snelheid\} \newline \newline 4. (Main) {\bf{NaamKlasse NaamObj = new NaamKlasse()}} \newline vb. MasterChef Alexander = new MasterChef(); \newline NaamObj.NaamMethode \{\{fa-arrow-right\}\} vb. Alexander.KookKunsten;} \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}{Code Snippets 2}} \tn % Row 0 \SetRowColor{LightBackground} \mymulticolumn{1}{x{5.377cm}}{1. Enum} \tn % Row Count 1 (+ 1) % Row 1 \SetRowColor{white} \mymulticolumn{1}{x{5.377cm}}{2. Full property} \tn % Row Count 2 (+ 1) \hhline{>{\arrayrulecolor{DarkBackground}}-} \SetRowColor{LightBackground} \mymulticolumn{1}{x{5.377cm}}{5. (in nieuwe klasse) {\bf{public enum NaamEnum \{ voorwerp1, voorwerp2 \}}} \newline \newline 3. Roep aan met {\bf{fullprop}} \newline private int {\emph{naamProp}}; (camelCase) \newline public int {\emph{NaamProp}} (PascalCase) \newline \{ \newline get \{ return {\emph{naamProp}}; \} \newline set \{ {\emph{naamProp}} = value; \} \newline \}} \tn \hhline{>{\arrayrulecolor{DarkBackground}}-} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{5.377cm}{x{2.38896 cm} x{2.58804 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Klasse}} \tn % Row 0 \SetRowColor{LightBackground} Pascal case & vb. ClassName \tn % Row Count 1 (+ 1) % Row 1 \SetRowColor{white} Voorgesteld? & Rechthoek \tn % Row Count 2 (+ 1) \hhline{>{\arrayrulecolor{DarkBackground}}--} \SetRowColor{LightBackground} \mymulticolumn{2}{x{5.377cm}}{een klasse hebben gedefinieerd die de algemene eigenschappen (properties).} \tn \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{5.377cm}{x{1.9908 cm} x{2.9862 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Objecten}} \tn % Row 0 \SetRowColor{LightBackground} Waar? & Main \tn % Row Count 1 (+ 1) % Row 1 \SetRowColor{white} instantiëren -\textgreater{} new & vb. Auto mijnEerste = new Auto() \tn % Row Count 3 (+ 2) \hhline{>{\arrayrulecolor{DarkBackground}}--} \SetRowColor{LightBackground} \mymulticolumn{2}{x{5.377cm}}{\{\{fa-arrow-right\}\} een verzameling van alle eigenschappen en methoden in een klasse die je dan makkelijk kan oproepen (vb.MyCar.Oliepeil -\textgreater{} geeft de oliepeil van het object genaamd MyCar)} \tn \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{5.377cm}{x{1.19448 cm} x{3.78252 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Attributen}} \tn % Row 0 \SetRowColor{LightBackground} Andere Term & eigenschappen \tn % Row Count 2 (+ 2) % Row 1 \SetRowColor{white} scope & een klasse of een object van een klasse \tn % Row Count 4 (+ 2) % Row 2 \SetRowColor{LightBackground} Aanmaken & vb. public int Kilometers \tn % Row Count 5 (+ 1) % Row 3 \SetRowColor{white} Waarde geven & public Auto() \{this.Kilometers = 5;\} \tn % Row Count 7 (+ 2) \hhline{>{\arrayrulecolor{DarkBackground}}--} \SetRowColor{LightBackground} \mymulticolumn{2}{x{5.377cm}}{• \{\{fa-arrow-right\}\} stukjes data die je bijhoudt in objecten \newline • {\bf{encapsulatie}} \{\{fa-arrow-right\}\} netjes groeperen \newline • {\bf{static }} \{\{fa-arrow-right\}\} deel van je klasse maar zijn geen deel van het object.} \tn \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{5.377cm}{x{1.29402 cm} x{3.68298 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Methoden}} \tn % Row 0 \SetRowColor{LightBackground} Termen & Instantiemethoden, objectmethoden \tn % Row Count 2 (+ 2) % Row 1 \SetRowColor{white} voorbeeld & public void Voltanken() \{Benzine = 30.0;\} \tn % Row Count 4 (+ 2) % Row 2 \SetRowColor{LightBackground} Static methode & data van een object kan je niet veranderen \tn % Row Count 6 (+ 2) \hhline{>{\arrayrulecolor{DarkBackground}}--} \SetRowColor{LightBackground} \mymulticolumn{2}{x{5.377cm}}{\{\{fa-arrow-right\}\} staat toe om functionaliteit toe te voegen aan objecten van een bepaalde klasse. = {\bf{gedrag}} van de objecten \newline • (klein) uitvoerbare stukjes code die je dan makkelijk overal kan oproepen. \newline vb. \newline public int {\emph{naam}}() \newline \{ \newline (code die {\emph{waarde}} berekent) \newline return ({\emph{waarde}}); \newline \}} \tn \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{5.377cm}{x{2.14011 cm} x{2.83689 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Datatypes}} \tn % Row 0 \SetRowColor{LightBackground} enum & vb. Weekdagen \{Ma, Di, Wo\} \tn % Row Count 2 (+ 2) % Row 1 \SetRowColor{white} variabelen toewijzen & dagKeuze = Weekdagen.Ma; \tn % Row Count 4 (+ 2) \hhline{>{\arrayrulecolor{DarkBackground}}--} \SetRowColor{LightBackground} \mymulticolumn{2}{x{5.377cm}}{{\bf{enumeratie}} ({\emph{enum}}). Een enumeratie is een opsomming van alle mogelijke waarden voor een variabele van een bepaald type. \newline Schrijven zoals een Klasse (onder {\emph{Namespace}})} \tn \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{5.377cm}{x{0.89586 cm} x{4.08114 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Access modifiers}} \tn % Row 0 \SetRowColor{LightBackground} \seqsplit{private} & niet "van buitenuit" aangeroepen \tn % Row Count 1 (+ 1) % Row 1 \SetRowColor{white} & niet rechtstreeks wijzigen \tn % Row Count 2 (+ 1) % Row 2 \SetRowColor{LightBackground} & camel case \tn % Row Count 3 (+ 1) % Row 3 \SetRowColor{white} public & Pascal case \tn % Row Count 4 (+ 1) \hhline{>{\arrayrulecolor{DarkBackground}}--} \SetRowColor{LightBackground} \mymulticolumn{2}{x{5.377cm}}{• \{\{fa-arrow-right\}\} bepaalt welke code door welke andere code mag worden uitgevoerd of aangepast. \newline • Private methode \{\{fa-arrow-right\}\} één code op meerdere plekken wordt gebruikt.} \tn \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{5.377cm}{x{1.74195 cm} x{3.23505 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Properties}} \tn % Row 0 \SetRowColor{LightBackground} \mymulticolumn{2}{x{5.377cm}}{get} \tn % Row Count 1 (+ 1) % Row 1 \SetRowColor{white} \mymulticolumn{2}{x{5.377cm}}{set} \tn % Row Count 2 (+ 1) % Row 2 \SetRowColor{LightBackground} propfull & (krijg formaat) \tn % Row Count 3 (+ 1) \hhline{>{\arrayrulecolor{DarkBackground}}--} \SetRowColor{LightBackground} \mymulticolumn{2}{x{5.377cm}}{• zien er uit zoals attributen, maar werken zoals methoden. \newline • Code ziet er zo uit: \newline private int {\emph{naam}} \newline public int {\emph{Naam}}\{ get \{return {\emph{naam}}\} set \{{\emph{naam}} = value\} \newline -{}-{}-{}- \newline • {\bf{write-only}} (SET) \{\{fa-arrow-right\}\} enkel {\emph{naam}} een waarde geven, maar niet van buitenuit lezen. \newline • {\bf{read-only}} (GET) \newline -{}-{}-{}- \newline • {\bf{Read-only property}} met {\bf{private set}} \{\{fa-arrow-right\}\} private set \newline • {\bf{Read-only Get-omvormers}} \{\{fa-arrow-right\}\} iets berekenen en dat teruggeven via een getter.} \tn \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{5.377cm}{x{2.33919 cm} x{2.63781 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{DateTime}} \tn % Row 0 \SetRowColor{LightBackground} datum nu & DateTime nu = DateTime.Now; \tn % Row Count 2 (+ 2) % Row 1 \SetRowColor{white} Aangegeven datum & DateTime naam = new DateTime(year, month, day); \tn % Row Count 5 (+ 3) % Row 2 \SetRowColor{LightBackground} Toevoegen & DateTime naam = naam.AddDays(getal) | .AddMonths | .AddYears \tn % Row Count 8 (+ 3) % Row 3 \SetRowColor{white} Bereken van schrikkeljaar (if, else) & IsLeapYear \tn % Row Count 10 (+ 2) % Row 4 \SetRowColor{LightBackground} Specifiek van de datum & DayOfYear | Day | Month \tn % Row Count 12 (+ 2) % Row 5 \SetRowColor{white} Formateren & naam.ToString("yyyy", "d", "M") \tn % Row Count 14 (+ 2) % Row 6 \SetRowColor{LightBackground} Datum in specifieke taal & CultureInfo taal = new \seqsplit{CultureInfo("land-taal");} \tn % Row Count 17 (+ 3) \hhline{>{\arrayrulecolor{DarkBackground}}--} \SetRowColor{LightBackground} \mymulticolumn{2}{x{5.377cm}}{using System.Globalization; \{\{fa-arrow-right\}\} nodig voor CultureInfo \newline using System.Threading.Tasks; \{\{fa-arrow-right\}\} nodig voor System.Threading \newline -{}-{}-{}- \newline System.Threading.Thread.Sleep(getal); \newline 1000 = seconde} \tn \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} % That's all folks \end{multicols*} \end{document}