public class StormChaser $\{$

public static void main$($String$[]$ args$)$

$\{$

$//$Constants

final int MAX$\_$STORMS $=300$;

Storm$[]$ List $=$ new Storm$[$MAX$\_$STORMS$]$; $//$ array of storms

Storm CurrentStorm; $//$ storm returned by GetStorm

int NStorms $=0$; $//$ number of array List

int Total $=0$; $//$ total number of Storms in the input file

Scanner fileInput;

$//$ openning hurricane data file

try$\{$

System.out.println$("$Openning hurricane data file..."$)$;

fileInput $=$ new Scanner$($new File$("$hurricane$.$data"$))$;

$\}$

catch$($FileNotFoundException e$)\{$

System.err.println$("$FileNotFoundException: $"+$ e$.$getMessage$())$;

return;

$\}$

System.out.println$($ "File opened successfully..."$)$;

System.out.println$($ "reading file..."$)$;

$//$Read Storm data file until EOF

while$($ fileInput.hasNextLine$())$

$\{$

CurrentStorm $=$ GetStorm$($fileInput$)$;

Total$++$;

if$($CurrentStorm$.$getCategory$()>=3)$

$\{$

List$[$NStorms$++]=$ CurrentStorm;

$\}$

$\}$

System.out.println$("$Number of Storms:" $+$ Total$).$

System.out.println$("$Hurricanes with category $3$ and above: $"+$ NStorms $)$;

DisplayStorms$("$First Ten Storms", List, $10)$;

Sort$($List$,$ NStorms$)$;

DisplayStorms $("$Top Twenty Storms", List, $20)$;

fileInput.close$()$;

$\}$

public static Storm GetStorm$($ Scanner in $)$

$\{$

$//$ Build a Storm object and return it

int year $=0,$ month $=0,$ day $=0,$ hour $=0$;

int sequence $=0,$ wind $=0,$ pressure $=0$;

String name;

int current $=0,$ beginDate $=0,$ duration $=0$;

int skip $=0$;

double junk $=0\mathrm{.}0$;

Storm NewStorm;

$//$ Read next record

year $=$ in$.$nextInt$()$;

month $=$ in$.$nextInt$()$;

day $=$ in$.$nextInt$()$;

skip $=$ in$.$nextInt$()$;

sequence $=$ in$.$nextInt$()$;

name $=$ in$.$next$()$;

junk $=$ in$.$nextDouble$()$;

junk $=$ in$.$nextDouble$()$;

wind $=$ in$.$nextInt$()$;

pressure $=$ in$.$nextInt$()$;

$//$ Make a storm object and initialize with info from the current record

beginDate $=$ year $*10000+$ month $*100+$ day;

duration $=6$;

NewStorm $=$ new Storm$($beginDate$,$ duration, name, wind, pressure$)$;

current $=$ sequence;

while$($in$.$hasNextLine$()$ && current $==$ sequence $)$

$\{$

$//$ update storm info

duration $+=6$;

NewStorm.setDuration$($duration$)$;

NewStorm.setWind$($wind$)$;

NewStorm.setPressure$($pressure$)$;

$//$ get next record

year $=$ in$.$nextInt$()$;

month $=$ in$.$nextInt$()$;

day $=$ in$.$nextInt$()$;

skip $=$ in$.$nextInt$()$;

sequence $=$ in$.$nextInt$()$;

name $=$ in$.$next$()$;

junk $=$ in$.$nextDouble$()$;

junk $=$ in$.$nextDouble$()$;

wind $=$ in$.$nextInt$()$;

pressure $=$ in$.$nextInt$()$;

$\}$

$//$and return the new storm object

return NewStorm;

$\}$

public static void DisplayStorms$($ String title, Storm$[]$ List, int NStorms$)$

$\{$

$//$ display NStorms Storms

$//$ print some title and column headings

System.out.println$($title $+"$

$")$;

System.out.println$("$Begin Date Duration name Category Maximum Minimum"$)$;

System.out.println$("($hours$)$ WInds$($MPH$)$ Press. $($mb$)")$;

System.out.println$("------------------------------------------------------")$;

for$($ int k $=0$; k $<$ NStorms; k$++)$

System.out.print$($List$[$k$].$toString$())$;

System.out.println$($title $+"$

$")$;

$\}$

public static void Sort$($ Storm$[]$ StormList, int N $)$

$\{$

$//$ bubble sort the list of Storms

int pass $=0,$ k$,$ switches;

Storm temp;

switches $=1$;

while$($ switches $!=0)$

$\{$

switches $=0$;

pass$++$;

for$($ k $=0$; k $<$ N $-$ pass; k$++)$

$\{$

if$($StormList$[$k$].$getCategory$()<$ StormList$[$k$+1].$getCategory$())$

$\{$

temp $=$ StormList$[$k$]$;

StormList$[$k$]=$ StormList$[$k$+1]$;

StormList$[$k$+1]=$ temp;

switches $=1$;

$\}$

$\}$

$\}$

$\}$

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