import java.util.Random;public class Cards {/*** 初始化標志數組，牌均未發出*/private int[][] cards = new int[4][13];/*** 花色*/private String[] suits;/*** 點數*/private String[] points;/*** 構造器初始化花色、點數* @param suits* @param points*/public Cards(String[] suits, String[] points) {super();this.suits = suits;this.points = points;}public int[][] getCards() {return cards;}public void setCards(int[][] cards) {this.cards = cards;}public String[] getSuits() {return suits;}public void setSuits(String[] suits) {this.suits = suits;}public String[] getPoints() {return points;}public void setPoints(String[] points) {this.points = points;}public void sendCards(int n) {//記錄撲克牌信息String sendCards = new String("發放的撲克牌為：");//生成隨機數的生成對象Random randomBuilder = new Random();//定義發放撲克牌花色、點數int suit, point;for (int i = 0; i < n; ) {suit = randomBuilder.nextInt(4);point = randomBuilder.nextInt(13);if (cards[suit][point] == 1) {continue;} else {cards[suit][point] = 1;//追加新發撲克牌花色sendCards = sendCards + suits[suit];//追加點數sendCards = sendCards + points[point] + " ";//準備發放下一張牌i++;}}System.out.println(sendCards.toString());}public static void main(String[] args) {String[] suits = {"紅心", "方片", "梅花", "黑桃"};String[] points = {"A", "2", "3", "4", "5", "6", "7", "8", "9", "10", "J", "Q", "K"};Cards cards = new Cards(suits, points);cards.sendCards(10);}}

運行程序，發現在0<=x<=52范圍內可以得到隨機發牌的準確結果。
提供代碼的main方法里是發10張牌，運行示例：

發放的撲克牌為：黑桃8 方片J 紅心3 黑桃J 黑桃10 方片10 紅心7 黑桃A 黑桃Q 紅心A 創作挑戰賽新人創作獎勵來咯，堅持創作打卡瓜分現金大獎

總結

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