package yuan;public class Yuan {    public static void main(String[] args) {                int a = 1;                int b = 8;                int c = 3;                int d = b*b-4*a*c;        if(a==0){                    System.out.println("无");                }                else{            if(a != 0){                                if(d > 0)                                        System.out.println("有2个");                            }                        else{                if(d == 0)                                        System.out.println("有1个");                        }                        {                                if(d < 0)                                        System.out.println("木有");                            }        }                        // TODO 自动生成的方法存根    }}