题解 | #输出某一年的各个月份的天数#

import java.util.Calendar;
import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner console = new Scanner(System.in);
        int year = console.nextInt();

        //write your code here......
        //获取Calendar的实例
        Calendar calendar = Calendar.getInstance();
        //循环遍历所有的月份
        for (int month = 1; month <= 12; month++) {
            //设置年、月、日
            calendar.set(year, month, 0);
            //输出对应年份各个月的天数
            System.out.println(year + "年" + month + "月:" + calendar.getActualMaximum(
                                   Calendar.DATE) + "天");
        }
    }
}