java在不同类中调用一个集合,发牌方法调用扑克牌类里的list为0???
--------首先是扑克牌类的list集合, ----------------------------------------------------------
package cardGame;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
public class ShuffleAllCards {
public List<String> cards;
public ShuffleAllCards(){
this.cards = new ArrayList<String>();
}
/**
* 生成所有52张牌
* */
public void CardsCreate(){
System.out.println("-----------游戏开始!-----------");
//通过遍历得到所有52张牌.
String[] number = {"A","2","3","4","5","6","7","8","9","10","J","Q","K"};
String[] color = {"黑桃","红桃","梅花","方块"};
for(int i=0;i<number.length;i++){
for (int j = 0; j < color.length; j++) {
//第一个是 黑桃A, 然后 红桃A,
String OneCard = color[j]+number[i];
//每一次都加到List里,list是有序的.
cards.add(OneCard);
}
}
if(cards.size() == 52){
System.out.println("-----------生成扑克牌成功-------");
}
}
/**
* 打乱所有52张牌的顺序
* */
public void ShuffleCards(){
System.out.println("-----------开始洗牌-----------");
Collections.shuffle(cards);
System.out.println(cards.size()); //-----------------------这里输出的是52,是对的--------------------
System.out.println("-----------洗牌结束-----------");
}
}
---然后在游戏类里的发牌方法里调用上面的list集合,给玩家的手牌, 想先看看list的大小, 居然是0,但是在扑克牌类里是52呀...-------------
package cardGame;
import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;
public class LetUsPlay {
Scanner console = new Scanner(System.in);
//定义一个玩家List
public List<Players> players;
public LetUsPlay() {
//初始化玩家List
players = new ArrayList<Players>();
}
/**
* 创建玩家方法
* */
public void CreatePlayers(){
System.out.println("-----------登记玩家信息-----------");
System.out.println("一共有几位玩家呢?");
int playerCounter = console.nextInt();
for(int i=0;i<playerCounter;i++){
//确定一共有几个玩家
System.out.println("请输入第"+(i+1)+"位玩家ID: ");
int playerId = console.nextInt();
System.out.println("请输入第"+(i+1)+"位玩家姓名: ");
String playerName = console.next();
Players player = new Players(playerId,playerName);
players.add(player);
}
for (Players players : players) {
System.out.println(players.name);
}
}
/**
* 为玩家发牌,之前扑克牌已经打乱顺序了
* */
public void GiveCards(){
Players player = new Players();
ShuffleAllCards giveCards = new ShuffleAllCards();
System.out.println(giveCards.cards.size()); //-----------这里输出的list的size是0???应该是52呀??
}
}
