public class Demo06 { public static void main(String[] args) {
Scanner a = new Scanner(System.in);
System.out.println("请输入一个数:"); int num = a.nextInt(); int num1 = a.nextInt(); int num2 = a.nextInt(); int num3 = 0;
if (BMI < 18.5f) {
System.out.println("偏瘦");
}else if (BMI<=24){
System.out.println("正常");
}else if (BMI>24){
System.out.println("超重");
}else if (BMI>30){
System.out.println("肥胖");
}