public class Exercise$04\_$Cards $\{$

$/*$

The folks at Scamper Shipping like to play a bit

of virtual poker at lunch, Five Card Draw, no Jokers. The deck

is represented an array of strings, encoded as:

$*"1-$C$"$ through $"10-$C$","$J$-$C$","$Q$-$C$","$K$-$C$"$

$*"1-$D$"$ through $"10-$D$","$J$-$D$","$Q$-$D$","$K$-$D$"$

$*"1-$H$"$ through $"10-$H$","$J$-$H$","$Q$-$H$","$K$-$H$"$

$*"1-$S$"$ through $"10-$S$","$J$-$S$","$Q$-$S$","$K$-$S$"$

A hand is made up of a $5$ card array. For example:

$["3-$H$","4-$D$","10-$S$","9-$D$","2-$S$"]$

$*/$

$/*$

Given a $5$ card array, return the value of the first card.

Examples:

getFirstCard$(["3-$H$","7-$H$","5-$H$","8-$H$","6-$H$"])->"3-$H$"$

getFirstCard$(["1-$C$","1-$D$","1-$H$","1-$S$","2-$C$"])->"1-$C$"$

getFirstCard$(["$K$-$C$","$Q$-$D$","$J$-$H$","10-$S$","$Q$-$C$"])->"$K$-$C$"$

$*/$

public String getFirstCard$($String$[]$ hand$)\{$

return $""$;

$\}$

$/*$

One of the players feels lucky and discards the first card from their hand.

Given a $5$ card array, remove the first card, and return a new $4$ card

array made up of the second through fifth cards of the original array.

Note: The given $5$ card array is always guaranteed to have $5$ elements.

Examples:

discardFirstCard$(["3-$H$","7-$H$","5-$H$","8-$H$","6-$H$"])->["7-$H$","5-$H$","8-$H$","6-$H$"]$

discardFirstCard$(["1-$C$","1-$D$","1-$H$","1-$S$","2-$C$"])->["1-$D$","1-$H$","1-$S$","2-$C$"]$

discardFirstCard$(["$K$-$C$","$Q$-$D$","$J$-$H$","10-$S$","$Q$-$C$"])->["$Q$-$D$","$J$-$H$","10-$S$","$Q$-$C$"]$

$*/$

public String$[]$ discardFirstCard$($String$[]$ hand$)\{$

return new String$[]\{\}$;

$\}$

$/*$

Once a player has drawn the top card from the deck, they must discard it$.$

Given a deck of cards, return a new deck containing all the cards except

the first from the original deck.

Note: The new array returned is one element shorter than the original,

except when the deck has no cards. Then the array returned must be empty.

Examples:

discardTopCard$(["8-$D$","10-$H$","$J$-$C$","8-$D$","6-$S$","$Q$-$C$","2-$D$"])->["10-$H$","$J$-$C$","8-$D$","6-$S$","$Q$-$C$","2-$D$"]$

discardTopCard$(["4-$D$","6-$S$","$K$-$D$"])->["6-$S$","$K$-$D$"]$

discardTopCard$(["9-$H$"])->[]$

discardTopCard$([])->[]$

$*/$

public String$[]$ discardTopCard$($String$[]$ remainingDeck$)\{$

return new String$[]\{\}$;

$\}$

$\}$