public class learn2 {
    public static void main(String[] args) {
        int count =0;//定义水仙花的个数
        for (int i =100; i<=999; i++)
      {
          int g = i%10;
          int s = i/10%10;
          int b = i/100%10;
           if (i == b*b*b +s*s*s +g*g*g){
               count+=1;
               System.out.println(i);
           }
       }
        System.out.println("一共有"+count+"只水仙花");

    }
}

结果展示