coding-interview/Java/src/Deck.java at main · blackbaud/coding-interview

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import java.util.Arrays;

import java.util.Collection;

import java.util.List;

import java.util.Stack;

import java.util.stream.Collectors;

public class Deck {

private Stack<Card> cards;

private Deck(Collection<Card> cards) {

this.cards = new Stack<>();

this.cards.addAll(cards);

}

public static Deck newDeck() {

List<Card> cards = Arrays.stream(Suit.values())

.flatMap(suit ->

Arrays.stream(Rank.values())

.map(rank -> new Card(rank, suit))

).collect(Collectors.toList());

return new Deck(cards);

}

public int countRemainingCards() {

return cards.size();

}

public boolean isEmpty() {

return cards.isEmpty();

}

public Card nextCard() {

if (isEmpty() == false) {

return cards.pop();

} else {

return null;

}