public static void main(String[] args) {    Scanner scanner = new Scanner(System.in);    System.out.println("请输入您的体重(kg)：");    final double weigth = scanner.nextDouble();    System.out.println("请输入您的身高(cm)：");    final double hight = scanner.nextDouble();    double bmi=weigth/Math.pow(hight/100.0,2);    if (bmi<18.5){        System.out.printf("你的BMI指数为%.2f，过轻",bmi);    }    else if (bmi<25){        System.out.printf("你的BMI指数为%.2f，正常",bmi);    }    else if (bmi<28){        System.out.printf("你的BMI指数为%.2f，过重",bmi);    }    else if (bmi<32){        System.out.printf("你的BMI指数为%.2f，肥胖",bmi);    }    else{        System.out.printf("你的BMI指数为%.2f，非常肥胖",bmi);    }}