hello，我是忘鱼。
目录
前言
一、案例所需要具备知识
二、代码
2.运行结果
总结
前言
斗地主小游戏，属于Collection体系综合案例，学习帮助我们加深理解。
一、案例所需要具备知识
常用Arraylist常用操作，和一些基础知识。代码注释很详细，简单但很重要。
二、代码
代码如下（示例）：
import java.util.ArrayList;import java.util.Collections;import parator;import java.util.List;//斗地主游戏public class GameDemo {// 存取全部牌public static List<Cards> allcards=new ArrayList<>();//数量确定类型确定使用数组static {String[] sizes={"3","4","5","6","7","8","9","10","J","Q","K","A","2"};String[] colors={"♣","♦","♥","♠"};int index=0;// List继承了collection,使用foreach循环简单;for (String size : sizes) {index++;for (String color : colors) {// 使用变量接取Cards c=new Cards(size,color,index);allcards.add(c);}}Cards c1=new Cards("","小🃏",++index);Cards c2=new Cards("","大🃏",++index);Collections.addAll(allcards,c1,c2);System.out.println("新牌是："+allcards);}public static void main(String[] args) {//洗牌操作使用shuffleCollections.shuffle(allcards);System.out.println("洗牌后："+allcards);// 定义三个player，使用集合简单List<Cards> player01=new ArrayList<>();List<Cards> player02=new ArrayList<>();List<Cards> player03=new ArrayList<>();// 发牌，留三张底牌for (int i = 0; i < allcards.size()-3; i++) {Cards c=allcards.get(i);// 求3的余数，0，1，2if(i%3==0){player01.add(c);}else if(i%3==1){player02.add(c);}else if(i%3==2){player03.add(c);}}// 进行大小排序;,使用方法简单;sort(player01);sort(player02);sort(player03);System.out.println("玩家1"+player01);System.out.println("玩家2"+player02);System.out.println("玩家3"+player03);// 还有三张底牌，差点忘了,直接截取用sublist 包前不包后List<Cards> lastthreeCards=allcards.subList(allcards.size()-3,allcards.size());System.out.println("底牌三张"+lastthreeCards);}private static void sort(List<Cards> playercards) {Collections.sort(playercards, new Comparator<Cards>() {@Overridepublic int compare(Cards o1, Cards o2) {return o2.getIndex()- o1.getIndex();}});}}public class Cards {private String size;private String color;// 定义牌自身属性大小判断本身大小private int index;public Cards() {}public Cards(String size, String color, int index) {this.size = size;this.color = color;this.index = index;}public String getSize() {return size;}public void setSize(String size) {this.size = size;}public String getColor() {return color;}public void setColor(String color) {this.color = color;}public int getIndex() {return index;}public void setIndex(int index) {this.index = index;}@Overridepublic String toString() {return (size+color);}}
2.运行结果
。
总结
给个赞吧！！亲亲
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