本文介绍了两个实用的方法：一是获取系统的当前时间并格式化为指定字符串形式；二是计算特定年份和月份的实际天数。
1 获得当前时间
private static String getCurTime() {
Calendar cal = Calendar.getInstance();
DateFormat sdf = new SimpleDateFormat ("yyyyMMddHHmmss");
String strCurrTime = sdf.format(cal.getTime());
return strCurrTime;
}
2 获得当前月份的天数
private int getDayOfMonth(int year, int month) {
Calendar calendar2 = new GregorianCalendar(year, month, 0);
return calendar2.getActualMaximum(Calendar.DAY_OF_MONTH);
}
private static String getCurTime() {
Calendar cal = Calendar.getInstance();
DateFormat sdf = new SimpleDateFormat ("yyyyMMddHHmmss");
String strCurrTime = sdf.format(cal.getTime());
return strCurrTime;
}
2 获得当前月份的天数
private int getDayOfMonth(int year, int month) {
Calendar calendar2 = new GregorianCalendar(year, month, 0);
return calendar2.getActualMaximum(Calendar.DAY_OF_MONTH);
}
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