「java洗牌代码」java实现洗牌算法
今天给各位分享java洗牌代码的知识，其中也会对java实现洗牌算法进行解释，如果能碰巧解决你现在面临的问题，别忘了关注本站，现在开始吧！
本文目录一览：
用java ArrayList集合编写扑克牌洗牌与发牌
import java.util.ArrayList;
import java.util.Random;
public class PokerDemo {
ArrayListCard poker = new ArrayListCard();
Player[] players;
int n = 4;
String[] name = {"Wang", "Zhang", "Li", "Yuan"};
public PokerDemo() {
players = new Player[n];
for(int i = 0; i players.length; i++)
players[i] = new Player(name[i]);
for(int i = 0; i 4; i++)
for(int j = 0; j 13; j++)
poker.add(new Card(i, j));
System.out.println("洗牌前: " + poker);
xipai();
System.out.println("洗牌后: " + poker);
fapai();
System.out.println("发牌后: ");
for(int i = 0; i players.length; i++)
System.out.println(players[i]);
}
public void xipai() {
Random r = new Random();
ArrayListCard tmp = new ArrayListCard();
while(!poker.isEmpty()) {
int index = r.nextInt(poker.size());
Card card = poker.get(index);
tmp.add(card);
poker.remove(index);
}
poker = new ArrayListCard(tmp);
}
public void fapai() {
int p = 0;
while(!poker.isEmpty()) {
Card card = poker.get(0);
players[p].add(card);
p = (p + 1) % n;
poker.remove(0);
}
}
public static void main(String[] args) {
new PokerDemo();
}
}
class Card {
int val, sty;
final String[] value = {"A", "2", "3", "4", "5", "6", "7", "8", "9", "10", "J", "Q", "K"};
final String[] style = {"黑桃", "红心", "梅花", "方块"};
public Card(int s, int v) {
sty = s;
val = v;
}
public String toString() {
return style[sty]+ " " + value[val];
}
}
class Player {
ArrayListCard cards = new ArrayListCard();
String name;
public Player(String n) {
name = n;
}
public void add(Card card) {
cards.add(card);
}
public String toString() {
return name + ":\t" + cards;
}
}
用java撰写一个简单的洗牌程序，可在文本模式下显示洗牌结果
//牌类
public class Card {
private int face; //牌的面值
private int suit; //牌的花色
public Card(int face, int suit) {
super();
this.face = face;
this.suit = suit;
}
public int getFace() {
return face;
}
public void setFace(int face) {
this.face = face;
}
public int getSuit() {
return suit;
}
public void setSuit(int suit) {
this.suit = suit;
}
}
//模拟洗牌和发牌
public class Test {
public static void main(String[] args) {
Card[] deck = new Card[52];
fillDeck(deck);
deal(deck);
System.out.println();
}
private static void fillDeck(Card[] deck) {
int i, j=0;
for (i = 0; i 52; i++) {
j = (int) (Math.random() * 52);
deck[i]=new Card(j%13,j/13);
}
}
private static void deal(Card[] deck) {
int k1, k2;
System.out.println();
for (k1 = 0, k2 = k1 + 26; k1 26; k1++, k2++) {
if (k1 % 13 == 0)
System.out.println("\n第" + (k1 / 13 + 1) +
"组牌：\t\t\t第"+ (k1 / 13 + 3) + "组牌：");
System.out.print("\nCard: " + deck[k1].getFace() +
" Suit: "+ deck[k1].getSuit());
System.out.print("\t\t\tCard: " + deck[k2].getFace() +
" Suit: "+ deck[k2].getSuit());
}
}
}
java洗牌算法问题
你指的是Card里的toString方法吧
public String toString() {
String aa = suit + " " + num + " ";
return aa;
}
toString这个方法一般在 System.out.print时使用，这个是打印出String，JVM就是默认调用类的toSting方法
注：所有类都有toString方法，默认是当前对象的hashcode，即内存地址
所以在发牌是打印
public void dealcard()//发牌
{
for(int i=0;i52;i++)
{
if(i%4==0i!=0){
System.out.println(); //每发4张牌输出换行
}
// 就是这里，默认调用card的toString方法
System.out.print(card[i]); //依次输出 发的牌
}
}
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