如何使用java对一副扑克牌建模
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第一步:使用枚举法对一副扑克牌(52张牌,不包括大小王)进行建模:一副扑克牌共有四种花色分别是:黑桃,方块,梅花,红心;而每种花色的牌一共有13张;
import java.util.EnumMap; import java.util.EnumSet; public class EnumSetTest { //枚举类型Suit enum Suit{"HEART ","SPADE ","DIAMOND ","CLUB "}; enum Rank{"A","2","3","4","5","6","7","8","9","10","J","Q","K"}; }
第二步:创建2个枚举类型包含这两类实例。
每张扑克牌Card对象都会有这两个属性,创建一个带有这两个枚举类型属性的类Card
`package com.Cards.model; package com.Cards.model; /** * @author Rock Lee * @version 2012-10-21 16:51:49 * @see CardSetting.java * @proposal Build A Class Contain All the info for ONE Card in the poker * @fix 2012-12-12 13:01:04 * */ public class Card { private String color = null; private String num = null; private boolean visible = false; private boolean red = false; public Card(String color, String num) { this.color = color; this.num = num; // if the color is diamond or heart ,then red is true,else false if (color.equals(CardSetting.COLOR[CardSetting.INDEX_HEART]) || color.equals(CardSetting.COLOR[CardSetting.INDEX_DIAMOND])) this.red = true; else this.red = false; } /* * 若花色,牌面大小相同,则认为是同一张牌 * */ public boolean equals(Object obj) { Card anotherCard = (Card) obj; return this.color.equals((anotherCard.color)) && this.num.equals(anotherCard.num); } public void setVisiable(boolean visible) { this.visible = visible; } public boolean isVisible() { return visible; } public boolean isRed() { return red; } public String toString() { if (this == null) return "EMPTY"; else { if (this.isVisible()) { return (color + " " + num + " "); } else return "███ "; } } public String getColor() { return color; } /* 以数字的方式,返回牌面的大小 */ public int getNum() { char ch = num.charAt(0); switch (ch) { case 'A': return 1; case 'J': return 11; case 'Q': return 12; case 'K': return 13; default: return Integer.parseInt(num); } } /* 以String的方式,返回牌面的大小 */ public String getNumInString() { return num; } }
第三步:初始化扑克牌排列顺序
public class CardHeap { private Vectorvector=null; public CardHeap() { this.initialize(); } /*初始化13*4=52张牌*/ public void initialize() { vector=new Vector (); Card tmp=null; for (int i = 0; i < 13; i++)//13 cards in Color Heart { tmp=new Card(CardSetting.COLOR[CardSetting.INDEX_HEART], CardSetting.NUM[i]); tmp.setVisiable(false); vector.add(tmp); } for (int i = 0; i < 13; i++)//13 cards in Color SPADE { tmp=new Card(CardSetting.COLOR[CardSetting.INDEX_SPADE], CardSetting.NUM[i]); tmp.setVisiable(false); vector.add(tmp); } for (int i = 0; i < 13; i++)//13 cards in Color DIAMOND { tmp=new Card(CardSetting.COLOR[CardSetting.INDEX_DIAMOND], CardSetting.NUM[i]); tmp.setVisiable(false); vector.add(tmp); } for (int i = 0; i < 13; i++)//13 cards in Color CLUB { tmp=new Card(CardSetting.COLOR[CardSetting.INDEX_CLUB], CardSetting.NUM[i]); tmp.setVisiable(false); vector.add(tmp); } }
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