根据出生日期获取年龄

社畜王总

于 2020-10-10 10:37:10 发布

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分类专栏： Util

本文链接：https://blog.youkuaiyun.com/Samurai77/article/details/108992492

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public static int getAgeByBirthday(Date birthday) {
    Calendar cal = Calendar.getInstance();
    if (cal.before(birthday)) {
        throw new IllegalArgumentException(
                "你还没出生呢");
    }

    int yearNow = cal.get(Calendar.YEAR);

    cal.setTime(birthday);
    int yearBirth = cal.get(Calendar.YEAR);
    int age = yearNow - yearBirth;
    return age;
}