\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{Ptero}
\pdfinfo{
  /Title (java-coding-interview.pdf)
  /Creator (Cheatography)
  /Author (Ptero)
  /Subject (Java Coding Interview 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{Java Coding Interview Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{Ptero} via \textcolor{DarkBackground}{\uline{cheatography.com/190551/cs/39699/}}}
\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}Ptero \\
  \uline{cheatography.com/ptero} \\
  \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 1st August, 2023.\\
   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}{Wrapper Class}}  \tn
% Row 0
\SetRowColor{LightBackground}
byte & Byte \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
short & Short \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
int & Integer \tn 
% Row Count 3 (+ 1)
% Row 3
\SetRowColor{white}
long & Long \tn 
% Row Count 4 (+ 1)
% Row 4
\SetRowColor{LightBackground}
float & Float \tn 
% Row Count 5 (+ 1)
% Row 5
\SetRowColor{white}
double & Double \tn 
% Row Count 6 (+ 1)
% Row 6
\SetRowColor{LightBackground}
boolean & Boolean \tn 
% Row Count 7 (+ 1)
% Row 7
\SetRowColor{white}
char & Character \tn 
% Row Count 8 (+ 1)
\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}{Min Max}}  \tn
% Row 0
\SetRowColor{LightBackground}
int min & Integer.MIN\_VALUE // -2\textasciicircum{}31 \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
int max & Integer.MAX\_VALUE // 2\textasciicircum{}31-1 \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
min & int min = Math.min(a, b); \tn 
% Row Count 3 (+ 1)
% Row 3
\SetRowColor{white}
max & int max = Math.max(a, b); \tn 
% Row Count 4 (+ 1)
% Row 4
\SetRowColor{LightBackground}
array min & int min = \seqsplit{Collections.min(Arrays.asList(arr));} \tn 
% Row Count 6 (+ 2)
% Row 5
\SetRowColor{white}
array max & int max = \seqsplit{Collections.max(Arrays.asList(arr));} \tn 
% Row Count 8 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{p{0.54747 cm} x{4.42953 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Math}}  \tn
% Row 0
\SetRowColor{LightBackground}
abs & int abs = Math.abs(num); \tn 
% Row Count 1 (+ 1)
\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}{Debug}}  \tn
% Row 0
\SetRowColor{LightBackground}
print array & \seqsplit{System.out.println(Arrays.toString(arr));} \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
print 2D array & \seqsplit{System.out.println(Arrays.deepToString(arr));} \tn 
% Row Count 4 (+ 2)
% Row 2
\SetRowColor{LightBackground}
print map & \seqsplit{System.out.println(Arrays.asList(map));} \tn 
% Row Count 6 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{1.4931 cm} x{3.4839 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{String}}  \tn
% Row 0
\SetRowColor{LightBackground}
new & String str = "string"; \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
get & char c = str.charAt(0); \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
length & int len = str.length(); \tn 
% Row Count 3 (+ 1)
% Row 3
\SetRowColor{white}
check emty & if (str.isEmpty()) \{...\} \tn 
% Row Count 4 (+ 1)
% Row 4
\SetRowColor{LightBackground}
compare & if (s1.equals(s2)) \{...\}\{\{nl\}\}// or\{\{nl\}\}if (s1.compareTo(s2) == 0) \{...\} \tn 
% Row Count 7 (+ 3)
% Row 5
\SetRowColor{white}
sub string & String sub = str.substring(begin, end); \tn 
% Row Count 9 (+ 2)
% Row 6
\SetRowColor{LightBackground}
check substring & if (str.contains(sub)) \{...\} \tn 
% Row Count 11 (+ 2)
% Row 7
\SetRowColor{white}
split & String{[}{]} arr = str.split("{[}\textbackslash{}\textbackslash{}{]}+"); \tn 
% Row Count 13 (+ 2)
% Row 8
\SetRowColor{LightBackground}
split char & import java.util.regex.Pattern;\{\{nl\}\}String{[}{]} arr = \seqsplit{word.split(Pattern.quote(Character.toString('.')));} \tn 
% Row Count 17 (+ 4)
% Row 9
\SetRowColor{white}
to char array & char{[}{]} arr = str.toCharArray(); \tn 
% Row Count 19 (+ 2)
% Row 10
\SetRowColor{LightBackground}
from char array & char{[}{]} arr = \{'s', 't', 'r'\};\{\{nl\}\}String str = new String(arr); \tn 
% Row Count 22 (+ 3)
% Row 11
\SetRowColor{white}
join string array & String{[}{]} arr = new String{[}{]} \{"a","b","c"\};\{\{nl\}\}String joined = String.join(",", arr); \tn 
% Row Count 26 (+ 4)
% Row 12
\SetRowColor{LightBackground}
to string array & int{[}{]} arr = \{1, 2, 3\};\{\{nl\}\}String{[}{]} strArr = new String{[}arr.length{]};\{\{nl\}\}for (int i = 0; i \textless{} arr.length; ++i) \{\{\{nl\}\}  strArr{[}i{]} = String.valueOf(arr{[}i{]});\{\{nl\}\}\} \tn 
% Row Count 32 (+ 6)
\end{tabularx}
\par\addvspace{1.3em}

\vfill
\columnbreak
\begin{tabularx}{5.377cm}{x{1.4931 cm} x{3.4839 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{String (cont)}}  \tn
% Row 13
\SetRowColor{LightBackground}
char to string & String str = Character.toString(','); \tn 
% Row Count 2 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{1.89126 cm} x{3.08574 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Array}}  \tn
% Row 0
\SetRowColor{LightBackground}
new & int{[}{]} arr = new int{[}{]}\{0\};\{\{nl\}\}// or\{\{nl\}\}int{[}{]} arr = \{1,2,3\};\{\{nl\}\}// or\{\{nl\}\}int{[}{]} arr = new int{[}3{]}; \tn 
% Row Count 5 (+ 5)
% Row 1
\SetRowColor{white}
new 2D & int{[}{]}{[}{]} arr = new int{[}height{]}{[}width{]}; \tn 
% Row Count 7 (+ 2)
% Row 2
\SetRowColor{LightBackground}
length & int len = arr.length; \tn 
% Row Count 8 (+ 1)
% Row 3
\SetRowColor{white}
fill & Arrays.fill(arr, val); \tn 
% Row Count 9 (+ 1)
% Row 4
\SetRowColor{LightBackground}
fill 2D & \seqsplit{Arrays.stream(arr).forEach(a} -\textgreater{} Arrays.fill(a, val)); \tn 
% Row Count 12 (+ 3)
% Row 5
\SetRowColor{white}
compare & if (Arrays.equals(arr1, arr2)) \{...\} \tn 
% Row Count 14 (+ 2)
% Row 6
\SetRowColor{LightBackground}
traverse & for (int item : arr) \{...\} \tn 
% Row Count 16 (+ 2)
% Row 7
\SetRowColor{white}
sort ascending, inplace & import java.util.Arrays;\{\{nl\}\}Arrays.sort(arr); \tn 
% Row Count 18 (+ 2)
% Row 8
\SetRowColor{LightBackground}
sort descending, inplace & import java.util.*;\{\{nl\}\}Arrays.sort(arr, \seqsplit{Collections.reverseOrder());} \tn 
% Row Count 21 (+ 3)
% Row 9
\SetRowColor{white}
sum & int sum = \seqsplit{Arrays.stream(arr).sum();} \tn 
% Row Count 23 (+ 2)
% Row 10
\SetRowColor{LightBackground}
find index & int index = \seqsplit{Arrays.asList(arr).indexOf(num);} \tn 
% Row Count 25 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{1.09494 cm} x{3.88206 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Array List}}  \tn
% Row 0
\SetRowColor{LightBackground}
include & import java.util.*; \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
new & List\textless{}Integer\textgreater{} list = new ArrayList\textless{}Integer\textgreater{}(); \tn 
% Row Count 3 (+ 2)
% Row 2
\SetRowColor{LightBackground}
new 2D & List\textless{}List\textless{}Integer\textgreater{}\textgreater{} list = new ArrayList\textless{}List\textless{}Integer\textgreater{}\textgreater{}(size); \tn 
% Row Count 5 (+ 2)
% Row 3
\SetRowColor{white}
check empty & if (list.isEmpty()) \{...\} \tn 
% Row Count 7 (+ 2)
% Row 4
\SetRowColor{LightBackground}
compare & if (list1.equals(list2)) \{...\} \tn 
% Row Count 8 (+ 1)
% Row 5
\SetRowColor{white}
add to tail & list.add(num); \tn 
% Row Count 10 (+ 2)
% Row 6
\SetRowColor{LightBackground}
get & int num = list.get(index); \tn 
% Row Count 11 (+ 1)
% Row 7
\SetRowColor{white}
size & int size = list.size(); \tn 
% Row Count 12 (+ 1)
% Row 8
\SetRowColor{LightBackground}
to array & Integer{[}{]} arr = new Integer{[}list.size(){]};\{\{nl\}\}list.toArray(arr); \tn 
% Row Count 15 (+ 3)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{1.09494 cm} x{3.88206 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Linked List}}  \tn
% Row 0
\SetRowColor{LightBackground}
include & import java.util.*; \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
new & LinkedList\textless{}Integer\textgreater{} list = new LinkedList\textless{}Integer\textgreater{}(); \tn 
% Row Count 3 (+ 2)
% Row 2
\SetRowColor{LightBackground}
new 2D & List\textless{}List\textless{}Integer\textgreater{}\textgreater{} list = new ArrayList\textless{}List\textless{}Integer\textgreater{}\textgreater{}(size); \tn 
% Row Count 5 (+ 2)
% Row 3
\SetRowColor{white}
add to head & list.addFirst(num); \tn 
% Row Count 7 (+ 2)
% Row 4
\SetRowColor{LightBackground}
add to tail & list.add(num);\{\{nl\}\}// or\{\{nl\}\}list.addLast(num); \tn 
% Row Count 9 (+ 2)
% Row 5
\SetRowColor{white}
get head & int num = list.getFirst(); \tn 
% Row Count 10 (+ 1)
% Row 6
\SetRowColor{LightBackground}
get tail & int num = list.getLast(); \tn 
% Row Count 11 (+ 1)
% Row 7
\SetRowColor{white}
delete head & list.remove();\{\{nl\}\}// or\{\{nl\}\}list.removeFirst(); \tn 
% Row Count 13 (+ 2)
% Row 8
\SetRowColor{LightBackground}
delete tail & list.removeLast(); \tn 
% Row Count 15 (+ 2)
% Row 9
\SetRowColor{white}
size & int size = list.size(); \tn 
% Row Count 16 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{1.09494 cm} x{3.88206 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Stack}}  \tn
% Row 0
\SetRowColor{LightBackground}
include & import java.util.*; \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
new & Stack\textless{}Integer\textgreater{} stack = new Stack\textless{}\textgreater{}(); \tn 
% Row Count 3 (+ 2)
% Row 2
\SetRowColor{LightBackground}
push & stack.push(num); \tn 
% Row Count 4 (+ 1)
% Row 3
\SetRowColor{white}
pop & int num = stack.pop(); \tn 
% Row Count 5 (+ 1)
% Row 4
\SetRowColor{LightBackground}
top & int num = stack.peak(); \tn 
% Row Count 6 (+ 1)
% Row 5
\SetRowColor{white}
size & int size = stack.size(); \tn 
% Row Count 7 (+ 1)
% Row 6
\SetRowColor{LightBackground}
check empty & if (stack.empty()) \{...\} \tn 
% Row Count 9 (+ 2)
% Row 7
\SetRowColor{white}
to array & Integer{[}{]} arr = new Integer{[}stack.size(){]};\{\{nl\}\}stack.toArray(arr); \tn 
% Row Count 12 (+ 3)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{1.09494 cm} x{3.88206 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Queue}}  \tn
% Row 0
\SetRowColor{LightBackground}
include & import java.util.*; \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
new & Queue\textless{}Integer\textgreater{} queue = new LinkedList\textless{}Integer\textgreater{}(); \tn 
% Row Count 3 (+ 2)
% Row 2
\SetRowColor{LightBackground}
push & queue.add(num); \tn 
% Row Count 4 (+ 1)
% Row 3
\SetRowColor{white}
pop & int num = queue.poll(); \tn 
% Row Count 5 (+ 1)
% Row 4
\SetRowColor{LightBackground}
get front & int num = queue.peek(); \tn 
% Row Count 7 (+ 2)
% Row 5
\SetRowColor{white}
size & int size = queue.size(); \tn 
% Row Count 8 (+ 1)
% Row 6
\SetRowColor{LightBackground}
check empty & if (queue.isEmpty()) \{...\} \tn 
% Row Count 10 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{1.14471 cm} x{3.83229 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Heap}}  \tn
% Row 0
\SetRowColor{LightBackground}
include & import java.util.*; \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
new min heap & Queue\textless{}Integer\textgreater{} minHeap = new PriorityQueue\textless{}Integer\textgreater{}(); \tn 
% Row Count 3 (+ 2)
% Row 2
\SetRowColor{LightBackground}
new max heap & Queue\textless{}Integer\textgreater{} maxHeap = new PriorityQueue\textless{}Integer\textgreater{}(Collections.reverseOrder()); \tn 
% Row Count 6 (+ 3)
% Row 3
\SetRowColor{white}
push & heap.add(num); \tn 
% Row Count 7 (+ 1)
% Row 4
\SetRowColor{LightBackground}
pop & int num = heap.remove(); \tn 
% Row Count 8 (+ 1)
% Row 5
\SetRowColor{white}
get top & int num = heap.peek(); \tn 
% Row Count 9 (+ 1)
% Row 6
\SetRowColor{LightBackground}
size & int size = heap.size(); \tn 
% Row Count 10 (+ 1)
% Row 7
\SetRowColor{white}
check empty & if (heap.isEmpty()) \{...\} \tn 
% Row Count 12 (+ 2)
% Row 8
\SetRowColor{LightBackground}
add array & \seqsplit{heap.addAll(Arrays.asList(arr));} \tn 
% Row Count 14 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{1.14471 cm} x{3.83229 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Hash Set}}  \tn
% Row 0
\SetRowColor{LightBackground}
include & import java.util.*; \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
new & Set\textless{}Integer\textgreater{} set = new HashSet\textless{}\textgreater{}(); \tn 
% Row Count 3 (+ 2)
% Row 2
\SetRowColor{LightBackground}
add & set.add(num); \tn 
% Row Count 4 (+ 1)
% Row 3
\SetRowColor{white}
delete & set.remove(num); \tn 
% Row Count 5 (+ 1)
% Row 4
\SetRowColor{LightBackground}
check in set & if (set.contains(num)) \{...\} \tn 
% Row Count 7 (+ 2)
% Row 5
\SetRowColor{white}
iterate & for (int num : set) \{...\} \tn 
% Row Count 8 (+ 1)
% Row 6
\SetRowColor{LightBackground}
size & int size = set.size(); \tn 
% Row Count 9 (+ 1)
% Row 7
\SetRowColor{white}
check empty & if (set.isEmpty()) \{...\} \tn 
% Row Count 11 (+ 2)
% Row 8
\SetRowColor{LightBackground}
to array & String arr = new String{[}set.size(){]};\{\{nl\}\}set.toArray(arr); \tn 
% Row Count 13 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{1.54287 cm} x{3.43413 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Hash Table}}  \tn
% Row 0
\SetRowColor{LightBackground}
include & import java.util.*; \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
new & Hashtable\textless{}Integer, Integer\textgreater{} table = new Hashtable\textless{}\textgreater{}(); \tn 
% Row Count 3 (+ 2)
% Row 2
\SetRowColor{LightBackground}
set & table.put(key, val); \tn 
% Row Count 4 (+ 1)
% Row 3
\SetRowColor{white}
get & int val = table.get(key); \tn 
% Row Count 5 (+ 1)
% Row 4
\SetRowColor{LightBackground}
get default & int val = table.getOrDefault(key, default); \tn 
% Row Count 7 (+ 2)
% Row 5
\SetRowColor{white}
delete & table.remove(key); \tn 
% Row Count 8 (+ 1)
% Row 6
\SetRowColor{LightBackground}
check key in table & if (table.containsKey(key)) \{...\} \tn 
% Row Count 10 (+ 2)
% Row 7
\SetRowColor{white}
check val in table & if \seqsplit{(table.containsValue(val))} \{...\} \tn 
% Row Count 12 (+ 2)
% Row 8
\SetRowColor{LightBackground}
iterate & for (Integer key : table.keySet()) \{...\} \tn 
% Row Count 14 (+ 2)
% Row 9
\SetRowColor{white}
size & int size = table.size(); \tn 
% Row Count 15 (+ 1)
% Row 10
\SetRowColor{LightBackground}
check empty & if (table.isEmpty()) \{...\} \tn 
% Row Count 16 (+ 1)
% Row 11
\SetRowColor{white}
keys to array & String{[}{]} arr = new String{[}map.size(){]};\{\{nl\}\}map.keySet().toArray(arr); \tn 
% Row Count 19 (+ 3)
% Row 12
\SetRowColor{LightBackground}
values to array & Integer{[}{]} arr = new Integer{[}map.size(){]};\{\{nl\}\}map.values().toArray(arr); \tn 
% Row Count 22 (+ 3)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}


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

\end{document}