public class CardGame { public static void main(String[] args) { String[]suits={"spades","dimonds","Hearts","clubs"}; String[]nums={"A","2","3","4","5","6","7","8","9","10","J","Q","K"}; // 52张牌 int []cards=new int[52]; for(int i=0;i<cards.length;i++) { cards[i]=i; } // 洗牌,打乱顺序 int temp; for (int i=0;i<cards.length ;i++ ) { int index=(int)(Math.random()*cards.length); temp=cards[index]; cards[index]=cards[i]; cards[i]=temp;//cards数组此时已经不是从0到51顺序排列的了 } // 发牌 for (int i=0;i<cards.length ;i++ ) { String cardNum=nums[cards[i]%13]; String suit=suits[cards[i]/13]; System.out.println("第"+(i+1)+"张牌是:"+suit+cardNum); } /* *主要思路: *1.为了保证52张牌每张都不重复 * 牌的花色有4种,每种花色循环13次>>>>0到51的整数除以13,得到的商为0到4(0-12:0;13-25:1···) * 牌的数字有13种,每个数字出现4次>>>>0到51的整数除以13,取模的值为0到13.从0到12循环四次。 *2.为了保证随机性 * 创建了cards[]数组,为其元素赋值0到51,然后打乱元素的顺序 */ } }
java随机发牌
时间: 2024-12-30 02:59:53