用java创建一副扑克牌
用java怎么创建一副扑克牌
一张扑克牌有两个属性，一个是花色（suit），一个是点数（rank），下面写一个简单的类Card
package com.syz.card;
import java.io.Serializable;
public class Card implements Serializable{
private static final long serialVersionUID = -4279016186402068401L;
private int suit;
private int rank;
public static final int SPADE = 0;
public static final int HEART = 1;
public static final int CLUB = 2;
public static final int DIAMOND = 3;
public static final int BLACK = 4;
public static final int RED = 5;
private static final String[] suits = new String[] { "黑桃", "红桃", "梅花", "方块",
"小", "大" };
public static final int ACE = 1000;
public static final int TWO = 1001;
public static final int THREE = 1002;
public static final int FOUR = 1003;
public static final int FIVE = 1004;
public static final int SIX = 1005;
public static final int SEVEN = 1006;
public static final int EIGHT = 1007;
public static final int NINE = 1008;
public static final int TEN = 1009;
public static final int JACK = 1010;
public static final int QUEEN = 1011;
public static final int KING = 1012;
public static final int JOKER = 1013;
private static final String[] ranks = new String[] { "A", "2", "3", "4",
"5", "6", "7", "8", "9", "10", "J", "Q", "K", "王" };
public Card(int suit, int rank) {
if (suit > -1 && suit < 6) {
if (suit < 4) {
if (rank < 1000 || rank > 1012) {
throw new IllegalArgumentException("花色或点数参数错误！");
}
}
else {
if (rank != 1013) {
throw new IllegalArgumentException("花色或点数参数错误！");
}
}
}
else {
throw new IllegalArgumentException("花色参数错误！");
}
this.suit = suit;
this.rank = rank;
}
public int getSuit() {
return suit;
}
public int getRank() {
return rank;
}
@Override
public String toString() {
return suits[suit] + ranks[rank - 1000];
}
}
写完之后，要new一张扑克牌，需要两个参数，suit和rank，而且suit和rank是有关系的黑红梅方可以对应A2345678910JQK，然后黑色小王，红色大王。这个在构造器里做了校验，如果不符合，则抛出参数错误异常。
下面是测试类
CardClient
package com.syz.card;
import java.util.ArrayList;
import java.util.List;
public class CardClient {
public static void main(String[] args) {
test2();
}
private static void test1() {
Card c = new Card(Card.BLACK, Card.JOKER);
System.out.println(c);
}
private static void test2() {
int[] suits = new int[] { Card.SPADE, Card.HEART, Card.CLUB,
Card.DIAMOND };
int[] ranks = new int[] { Card.ACE, Card.TWO, Card.THREE, Card.FOUR,
Card.FIVE, Card.SIX, Card.SEVEN, Card.EIGHT, Card.NINE,
Card.TEN, Card.JACK, Card.QUEEN, Card.KING };
List cards = new ArrayList();
for (int i = 0; i < suits.length; i++) {
for (int j = 0; j < ranks.length; j++) {
cards.add(new Card(suits[i], ranks[j]));
}
}
cards.add(new Card(Card.BLACK, Card.JOKER));
cards.add(new Card(Card.RED, Card.JOKER));
System.out.println(cards);
}
}
测试结果：
[黑桃A, 黑桃2, 黑桃3, 黑桃4, 黑桃5, 黑桃6, 黑桃7, 黑桃8, 黑桃9, 黑桃10, 黑桃J, 黑桃Q, 黑桃K, 红桃A, 红桃2, 红桃3, 红桃4, 红桃5, 红桃6, 红桃7, 红桃8, 红桃9, 红桃10, 红桃J, 红桃Q, 红桃K, 梅花A, 梅花2, 梅花3, 梅花4, 梅花5, 梅花6, 梅花7, 梅花8, 梅花9, 梅花10, 梅花J, 梅花Q, 梅花K, 方块A, 方块2, 方块3, 方块4, 方块5, 方块6, 方块7, 方块8, 方块9, 方块10, 方块J, 方块Q, 方块K, 小王, 大王]这样一副扑克就创建成功了。扑克原来有52张，没有大小王，后来才加上了大小王。现在有些扑克会带一张白板牌里面是一些广告什么的，如果把这张牌加入的话，就得改改这个Card类了。下面我们来看看第二种方式创建一副扑克牌，不过这儿的类有些多，好处就是可以扩展。看代码：
1.Suit
package com.syz.pattern.bridge;
public abstract class Suit {
private Face face;
public Suit(Face face) {
this.face = face;
}
public void show() {
face.show(this);
}
protected abstract String getName();
}
2.Face
package com.syz.pattern.bridge;
public abstract class Face {
protected abstract String getName();
public void show(Suit suit) {
System.out.println(suit.getName() + this.getName());
}
}
以上两个抽象类，相互引用。是花色和点数的父类。
Suit的几个子类：
package com.syz.pattern.bridge;
public class Spade extends Suit {
public Spade(Face face) {
super(face);
}
@Override
public String getName() {
return "黑桃";
}
}
package com.syz.pattern.bridge;
public class Heart extends Suit {
public Heart(Face face) {
super(face);
}
@Override
protected String getName() {
return "红桃";
}
}
package com.syz.pattern.bridge;
public class Club extends Suit {
public Club(Face face) {
super(face);
}
@Override
protected String getName() {
return "梅花";
}
}
package com.syz.pattern.bridge;
public class Diamond extends Suit {
public Diamond(Face face) {
super(face);
}
@Override
protected String getName() {
return "方块";
}
}
package com.syz.pattern.bridge;
public class Black extends Suit {
public Black(Face face) {
super(face);
}
@Override
protected String getName() {
return "小";
}
}
package com.syz.pattern.bridge;
public class Red extends Suit {
public Red(Face face) {
super(face);
}
@Override
protected String getName() {
return "大";
}
}
Face的几个子类
package com.syz.pattern.bridge;
public class Ace extends Face {
@Override
protected String getName() {
return "A";
}
}
package com.syz.pattern.bridge;
public class Two extends Face {
@Override
protected String getName() {
return "2";
}
}
package com.syz.pattern.bridge;
public class Three extends Face {
@Override
protected String getName() {
return "3";
}
}
package com.syz.pattern.bridge;
public class Four extends Face {
@Override
protected String getName() {
return "4";
}
}
package com.syz.pattern.bridge;
public class Five extends Face {
@Override
protected String getName() {
return "5";
}
}
package com.syz.pattern.bridge;
public class Six extends Face {
@Override
protected String getName() {
return "6";
}
}
package com.syz.pattern.bridge;
public class Seven extends Face {
@Override
protected String getName() {
return "7";
}
}
package com.syz.pattern.bridge;
public class Eight extends Face {
@Override
protected String getName() {
return "8";
}
}
package com.syz.pattern.bridge;
public class Nine extends Face {
@Override
protected String getName() {
return "9";
}
}
package com.syz.pattern.bridge;
public class Ten extends Face {
@Override
protected String getName() {
return "10";
}
}
package com.syz.pattern.bridge;
public class Jack extends Face {
@Override
protected String getName() {
return "J";
}
}
package com.syz.pattern.bridge;
public class Queen extends Face {
@Override
protected String getName() {
return "Q";
}
}
package com.syz.pattern.bridge;
public class King extends Face {
@Override
protected String getName() {
return "K";
}
}
package com.syz.pattern.bridge;
public class Joker extends Face {
@Override
protected String getName() {
return "王";
}
}