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();
        Calendar calendar = Calendar.getInstance();
        for (int i = 1; i <= 12; i++) {
            calendar.set(year, i - 1, 1);
            //System.out.println(new SimpleDateFormat("yyyy-MM-dd").format(calendar.getTime()));
            System.out.printf("%d年%d月:%d天\n", year, i, calendar.getActualMaximum(Calendar.DAY_OF_MONTH));
        }
    }
}