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......
        Calendar c = Calendar.getInstance();
        
        for(int m = 1; m <= 12; m++){
            c.set(year, m, 0);
            System.out.println(year + "年" + m + "月:" + c.getActualMaximum(Calendar.DATE) + "天");
        }
    }
}