• 演示效果：

  
  

• Card

/**
?*?撲克牌類
?*/
public?class?Card?implements?Comparable<Card>?{

????private?int?pointsScore;??//手牌的點數
????private?int?colourScore;??//花色的點數
????private?String?points;?//牌的名稱
????private?String?color;?//牌的花色

????public?Card(int?pointsScore,?int?colourScore,?String?points,?String?color)?{
????????this.pointsScore?=?pointsScore;
????????this.colourScore?=?colourScore;
????????this.points?=?points;
????????this.color?=?color;
????}

????//重寫Comparable類中compareTo()方法
????@Override
????public?int?compareTo(Card?c)?{
????????//如果點數一樣，則比較花色
????????if?(this.pointsScore?==?c.pointsScore)?{
????????????//這樣定是降序排序，反著寫就是升序排序
????????????return?c.colourScore?-?this.colourScore;
????????}
????????//比較花色，降序排序，也就是說容器中最大的下標為0
????????return?c.pointsScore?-?this.pointsScore;
????}

????@Override
????public?String?toString()?{
????????return?this.color?+?this.points;
????}
????
}

• Poker

import?java.util.ArrayList;
import?java.util.Collections;
import?java.util.List;

/**
?*?整副撲克牌
?*/
public?class?Poker?{
????private?List<Card>?cards?=?new?ArrayList<>();

????public?Poker()?{
????????createPoker();
????????randomPoker();
????}

????/**
?????*?創建撲克牌
?????*/
????private?void?createPoker()?{
????????System.out.println("-------------創建撲克牌...--------------");
????????String[]?names?=?{"2",?"3",?"4",?"5",?"6",?"7",?"8",?"9",?"10",?"J",?"Q",?"K",?"A"};?//定義一個字符串數組
????????String[]?colors?=?{"方片",?"梅花",?"紅桃",?"黑桃"};

????????for?(int?i?=?0;?i?<?names.length;?i++)?{
????????????for?(int?j?=?0;?j?<?colors.length;?j++)?{
????????????????cards.add(new?Card(i,?j,?names[i],?colors[j]));
????????????}
????????}

????????System.out.println("-------------撲克牌創建完畢！--------------");
????????System.out.println(cards);?//輸出
????}

????/**
?????*?洗牌
?????*/
????public?void?randomPoker()?{
????????System.out.println("-------------開始洗牌--------------");
????????Collections.shuffle(cards);??//調用Collections類中shuffle()方法就好了
????????System.out.println("-------------洗牌結束！--------------");
????}

????/**
?????*?根據索引獲取撲克牌
?????*?@param?index
?????*?@return
?????*/
????public?Card?get(int?index)?{
????????return?this.cards.get(index);
????}

????/**
?????*?獲取撲克牌的數量
?????*?@return
?????*/
????public?int?size()?{
????????return?this.cards.size();
????}

}

• Player

import?java.util.ArrayList;
import?java.util.Collections;
import?java.util.List;

/**
?*?玩家類
?*/
public?class?Player?implements?Comparable<Player>?{

????private?int?id;?//玩家ID
????private?String?name;?//玩家姓名
????private?Card?maxCard;?//?玩家手中最大的牌
????private?List<Card>?cards?=?new?ArrayList<>();?//存放玩家手中的牌的容器

????public?Player(int?id,?String?name)?{
????????this.id?=?id;
????????this.name?=?name;
????}

????public?int?getId()?{
????????return?id;
????}

????public?String?getName()?{
????????return?name;
????}

????public?List<Card>?getCards()?{
????????return?cards;
????}

????//獲取玩家手中最大的牌的方法
????public?Card?getMaxCard()?{
????????if?(this.maxCard?==?null)?{
????????????//先排序，由于重寫了Poker類中compareTo()方法,下標為0的為最大值
????????????Collections.sort(cards);
????????????this.maxCard?=?cards.get(0);
????????}
????????return?this.maxCard;
????}

????@Override
????public?int?compareTo(Player?o)?{
????????//?按照玩家最大的牌進行排序，獲取玩家排在最前面
????????return?this.getMaxCard().compareTo(o.getMaxCard());
????}

????public?void?add(Card?card)?{
????????System.out.println("--玩家["?+?this.getName()?+?"]拿牌："?+?card);
????????this.cards.add(card);
????}

????/**
?????*?輸出玩家最大的手牌
?????*/
????public?void?showMaxCard()?{
????????System.out.println("玩家["?+?this.getName()?+?"]最大的手牌為："?+?this.getMaxCard());
????}

????/**
?????*?輸出玩家各自手牌
?????*/
????public?void?showCards()?{
????????System.out.println(this.getName()?+?"："?+?this.getCards());
????}

}

• PokerGame

import?java.util.ArrayList;
import?java.util.Collections;
import?java.util.List;
import?java.util.Scanner;
import?java.util.function.Function;

/**
?*?撲克游戲
?*/
public?class?PokerGame?{

????private?List<Player>?players?=?new?ArrayList<>();?//用來存放玩家
????private?Poker?poker?=?new?Poker();?//?整副撲克牌
????private?Scanner?scanner?=?new?Scanner(System.in);?//?接收用戶在控制臺輸入的信息

????/**
?????*?啟動方法
?????*/
????public?void?startGame()?{
????????creatPlayer();?//創建玩家
????????dealPoker();?//?發牌
????????comparePoker();?//統計
????}

????/**
?????*?創建玩家
?????*/
????public?void?creatPlayer()?{
????????System.out.println("-------------創建玩家...--------------");

????????int?playerNum?=?getInput("請輸入玩家數量：",?playerCount?->?{
????????????if?(playerCount?<?2)?{
????????????????System.out.println("玩家數量最少有2位！請重新輸入！");
????????????????return?false;
????????????}
????????????if?(playerCount?>?poker.size())?{
????????????????System.out.println("輸入的玩家數量不能大于撲克牌的數量("?+?poker.size()?+?")！請重新輸入!");
????????????????return?false;
????????????}
????????????return?true;
????????});

????????for?(int?i?=?1;?i?<=?playerNum;?i++)?{?//這所以寫個循環，是為了方便修改玩家的人數，只需改一下循環的判斷條件就好了
????????????System.out.print("請輸入第"?+?i?+?"位玩家的姓名：");
????????????players.add(new?Player(i,?scanner.next()));
????????}

????????//?輸出各位玩家信息
????????for?(Player?player?:?players)?{
????????????System.out.println("----歡迎玩家："?+?player.getName());
????????}
????}

????/**
?????*?發牌
?????*/
????public?void?dealPoker()?{
????????System.out.println("-------------開始發牌...--------------");

????????int?cardNum?=?getInput("請設置給每個玩家發多少張牌：",?cardCount?->?{
????????????if?(cardCount?<=?0)?{
????????????????System.out.println("發牌數不能必須大于0，請重新輸入！");
????????????????return?false;
????????????}

????????????if?(cardCount?*?players.size()?>?poker.size())?{
????????????????System.out.println("非法的發牌數，總發牌數量不能超過撲克牌的數量("?+?poker.size()?+?")！請重新輸入！");
????????????????return?false;
????????????}
????????????return?true;
????????});

????????int?limit?=?players.size()?*?cardNum;
????????for?(int?i?=?0;?i?<?limit;?i++)?{
????????????players.get(i?%?players.size()).add(poker.get(i));
????????}

????????System.out.println("-------------發牌結束...--------------");
????}

????/**
?????*?統計
?????*/
????public?void?comparePoker()?{
????????System.out.println("-------------開始統計...--------------");

????????players.forEach(Player::showMaxCard);

????????Player?winner?=?getWinner();
????????System.out.println("-------------玩家["?+?winner.getName()?+?"]獲勝！--------------");

????????System.out.println("玩家各自的手牌為：");
????????players.forEach(Player::showCards);
????}

????private?Player?getWinner()?{
????????//?對所有玩家進行排序，排序規則參考Player.compareTo()方法
????????Collections.sort(players);
????????//?得到獲勝玩家
????????return?players.get(0);
????}

????/**
?????*?從控制臺接受用戶輸入的一個正整數
?????*
?????*?@param?hint?????提示信息
?????*?@param?function?用戶判斷用戶輸入的信息是否合法，如果不合法，需要重新輸入
?????*?@return
?????*/
????private?int?getInput(String?hint,?Function<Integer,?Boolean>?function)?{
????????while?(true)?{
????????????System.out.print(hint);
????????????try?{
????????????????int?input?=?scanner.nextInt();
????????????????if?(!function.apply(input))?{
????????????????????continue;
????????????????}
????????????????return?input;
????????????}?catch?(Exception?e)?{
????????????????System.out.println("輸入不合法！請重新輸入！");
????????????????//?如果出現異常，則跳過本次輸入的信息
????????????????scanner?=?scanner.skip(".*");
????????????}
????????}
????}
}

• Test

/**
?*?測試類
?*/
public?class?Test?{
????public?static?void?main(String[]?args)?{
????????new?PokerGame().startGame();
????}
}