取指定月份的天数(主要是闰月)

最新推荐文章于 2024-01-12 09:35:49 发布

bend01

最新推荐文章于 2024-01-12 09:35:49 发布

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CC 4.0 BY-SA版权

文章标签： string

本文链接：https://blog.youkuaiyun.com/bend01/article/details/1586991

本文介绍了一个用于计算给定年份中每个月天数的方法。特别关注了闰年的判断及其对二月天数的影响。通过一系列条件判断，确保能够准确地返回每个月的天数。

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private String getDay(int year, int month) {
// TODO Auto-generated method stub
int returnInt = 31;

if("0".equals(month.substring(0,1)))

                     month = month.substring(1,2);
        switch (month) {
        case 1:
            returnInt = 31;
            break;
        case 2:
            if (year % 100 == 0 && year % 400 == 0) {
                returnInt = 29;
            } else if (year % 100 == 0 && year % 400 != 0) {
                returnInt = 28;
            } else if (year % 4 == 0) {
                returnInt = 29;
            } else if (year % 4 != 0)
                returnInt = 28;
            break;
        case 3:
            returnInt = 31;
            break;
        case 4:
            returnInt = 30;
            break;
        case 5:
            returnInt = 31;
            break;
        case 6:
            returnInt = 30;
            break;
        case 7:
            returnInt = 31;
            break;
        case 8:
            returnInt = 31;
            break;
        case 9:
            returnInt = 30;
            break;
        case 10:
            returnInt = 31;
            break;
        case 11:
            returnInt = 30;
            break;
        case 12:
            returnInt = 31;
            break;
        default:
            returnInt = 31;
            break;
        }
        return String.valueOf(returnInt);