test case:

public void testHandSequenceLength$()\{$

deck $=$ new Deck$()$;

hand$1=$ new Hand$("$Amina$",1,$ deck$)$;

assertEquals$(1,$ hand$1.$sequenceLength$())$;

deck $=$ new Deck$()$;

hand$1=$ new Hand$("$Nina$",52,$ deck$)$;

assertEquals$(13,$ hand$1.$sequenceLength$())$;

ArrayList cards $=$ new ArrayList$()$;

cards.add$($new Card$($new Rank$("$Two$",\text{'}2\text{'},2),$ new Suit$("$Hearts$",\text{'}$H$\text{'},$ "red", $1)))$;

cards.add$($new Card$($new Rank$("$Four$",\text{'}4\text{'},4),$ new Suit$("$Hearts$",\text{'}$H$\text{'},$ "red", $1)))$;

cards.add$($new Card$($new Rank$("$King$",\text{'}$K$\text{'},13),$ new Suit$("$Hearts$",\text{'}$H$\text{'},$ "red", $1)))$;

cards.add$($new Card$($new Rank$("$Eight$",\text{'}8\text{'},8),$ new Suit$("$Hearts$",\text{'}$H$\text{'},$ "red", $1)))$;

cards.add$($new Card$($new Rank$("$Three$",\text{'}3\text{'},3),$ new Suit$("$Clubs$",\text{'}$C$\text{'},$ "black", $3)))$;

cards.add$($new Card$($new Rank$("$Queen$",\text{'}$Q$\text{'},12),$ new Suit$("$Hearts$",\text{'}$H$\text{'},$ "red", $1)))$;

hand$1=$ new Hand$("$Amina$",$ cards$)$;

assertEquals$(3,$ hand$1.$sequenceLength$())$;

cards.add$($new Card$($new Rank$("$Ace$",\text{'}$A$\text{'},14),$ new Suit$("$Clubs$",\text{'}$C$\text{'},$ "Black", $1)))$;

hand$1=$ new Hand$("$Amina$",$ cards$)$;

assertEquals$(4,$ hand$1.$sequenceLength$())$;

cards.add$($new Card$($new Rank$("$Jack$",\text{'}$J$\text{'},11),$ new Suit$("$Hearts$",\text{'}$H$\text{'},$ "red", $1)))$;

cards.add$($new Card$($new Rank$("$Ten$",\text{'}$X$\text{'},10),$ new Suit$("$Clubs$",\text{'}$C$\text{'},$ "black", $3)))$;

cards.add$($new Card$($new Rank$("$Nine$",\text{'}9\text{'},9),$ new Suit$("$Hearts$",\text{'}$H$\text{'},$ "red", $1)))$;

hand$1=$ new Hand$("$Amina$",$ cards$)$;

assertEquals$(7,$ hand$1.$sequenceLength$())$;

currentMethodName $=$ new Object$()\{\}.$getClass$().$getEnclosingMethod$().$getName$()$;

$\}$

my code isn't passing the test cases. the question says to return the length of the longest "sequence: of cards in the hand.

public int sequenceLength$()\{$

if $($cardsInHand$.$isEmpty$())\{$

return $0$;

$\}$

arrange$()$;

ArrayList ranks $=$ new ArrayList$<>()$;

for $($Card card : cardsInHand$)\{$

ranks.add$($card$.$rank.value$)$;

if $($card$.$rank.value $==14)\{$

ranks.add$(1)$;

$\}$

$\}$

ranks.sort$($null$)$;

int maxLength $=1$;

int currentLength $=1$;

for $($int i $=1$; i $<$ ranks.size$()$; i$++)\{$

if $($ranks$.$get$($i$)==$ ranks.get$($i $-1)+1)\{$

currentLength$++$;

$\}$ else if $($ranks$.$get$($i$)!=$ ranks.get$($i $-1))\{$

maxLength $=$ Math.max$($maxLength$,$ currentLength$)$;

currentLength $=1$;

$\}$

$\}$

maxLength $=$ Math.max$($maxLength$,$ currentLength$)$;

return maxLength;

$\}$