java作业篇,闰年,BMI

import java.util.Scanner;

public class leap_year {
    public static void main(String[] args) {
        //创建扫描器
        Scanner sc = new Scanner(System.in);
        System.out.println("请输入年份");
        //赋值
        int year = sc.nextInt();
        if ( year%4 == 0&&year%100!= 0 || year%400==0 ){
            System.out.println("闰年,366天");
        } else{
            System.out.println("平年,365天");
        }
    }
}

import java.util.Scanner;

public class BMI_text {
    public static void main(String[] args) {
        //创建扫描器
        Scanner sc = new Scanner(System.in);
        //打印身高
        System.out.println("请输入你的身高(m)");
        //赋值
        double height = sc.nextFloat();
        //打印体重
        System.out.println("请输入你的体重(kg)");
        //赋值
        float weight = sc.nextFloat();
        //计算BMI的值
        double BMI = weight/(height*height);
        //if判断
        if (BMI<18.5){
            System.out.println("体重过轻");
        }else if (18.5 <= BMI && BMI < 24){
            System.out.println("正常范围");
        }else if (24 <= BMI && BMI <27){
            System.out.println("体重过重");
        }else if (27 <= BMI && BMI <30){
            System.out.println("轻度肥胖");
        }else if (30 <= BMI && BMI <35){
            System.out.println("中度肥胖");
        }else{
            System.out.println("重度肥胖");
        }
        System.out.println("你的BMI值:" + BMI);
        System.out.println("祝你身体健康");
    }
}