Basic example of builder for poker hand

Poker Hand Builder

public class Hand {
    public final Card firstCard;
    public final Card secondCard;

    public Hand(Card firstCard, Card secondCard) {
        this.firstCard = firstCard;
        this.secondCard = secondCard;
    }
}

/** builder for Hand **/
public class HandBuilder {
    private Card first;
    private Card second;

    HandBuilder first(Card first) {
        this.first = first;
        return this;
    }

    HandBuilder second(Card second) {
        this.second = second;
        return this;
    }

    public Hand build() {
        return new Hand(first, second);
    }
}