man.java

21点游戏后台运行处理程序

package game;
import java.util.*;
public class man extends player {
	
public int result(){
	man m=new man();
	int score=m.num();
	Scanner in=new Scanner(System.in);
	while(score<21){System.out.println("your score is "+score);//while的作用是人类手里的点数少于21点时，一直追问玩家是否加牌
	System.out.println("Do you want more?(y/n)");//提示加牌信息
	String d=in.next();
	char d1=d.charAt(0);//判定输入结果
	if(d1=='y') {
		score=score+m.num(); //选择yes时，继续加牌，并显示加牌后自己所得点数
	}
	if(d1=='n') break;  //选择否时，退出循环
	if(d1!='y'&&d1!='n') {  //当输入其他字符时，提示错误信息
	
	
		System.out.println("you must input 'y 'or 'n '");
	}
	
}
	if(score>21){System.out.println("You are lost,the score is "+score);} //超过21点，提示游戏失败
	return score;
}

}