*/privatestaticbooleanisHoliday(Date date){// 架设等于这一天才是假期,否则不是Date holiday=newDate(2021-1900,10-1,1);if(date.getTime()==holiday.getTime()){returntrue;}else{// 模拟写代码时不注意,使坏date.setTime(holiday.getTime());returntrue;}}输出: 当前日期是①:Fri Jan2200:41:59CST...
Date date = new Date(long); Date date = new Date(long); 1. 2. Date 类还有一个 getTime() 实例方法,这个方法的返回值就是 new Date(long) 时指定的 long 参数。 从Java 8 开始,新增了和 Instant 互相转换的方法,关于 Instant 请参考本文下部分,这里了解就行: static Date from(Instant instant);...
myDate=new java.util.Date(); myTime=(myDate.getTime()/1000)+60*60*24; myDate.setTime(myTime*1000); mDate=formatter.format(myDate); //两个时间之间的天数 SimpleDateFormat myFormatter = new SimpleDateFormat("yyyy-MM-dd"); java.util.Date date= myFormatter.parse("2003-05-1"); java...
For long, Long, and Date the time zone used is the default time zone for this instance of the Java virtual machine. The Formatter's locale will supersede the locale of the argument (if any). 's' Seconds since the beginning of the epoch starting at 1 January 1970 00:00:00 UTC, i...
boolean holiday = isHoliday(currDate); System.out.println("是否是假期:" + holiday); System.out.println("当前日期是②:" + currDate); } /** * 是否是假期 */ private static boolean isHoliday(Date date) { // 架设等于这一天才是假期,否则不是 ...
DateTimeFormatter DATE_FORMATTER = DateTimeFormatter.ofPattern(DATE_PATTERN); /** * 时间格式(yyyy-MM-dd HH:mm:ss) */ public static final String DATE_TIME_PATTERN = "yyyy-MM-dd HH:mm:ss"; public static final DateTimeFormatter DATE_TIME_FORMATTER = DateTimeFormatter.ofPattern(DATE_TIME_PATTERN);...
, e); } } public static void main(String[] args) { formatter(); stringFormat(); messageFormat(); dateFormat(); printf(); } } 3. 新增Scanner类(Scanner) java.util.Scanner是Java5的新特征,主要功能是简化文本扫描,但这个类最实用的地方还是在获取控制台输入。 (1). Scanner概述 可以从字符串...
1、java.util.Formatter功能强大,主要用于自由格式的制定,也可以指定金额、日期等格式。但以使用方便为原则。 2、其他格式化类: java.text.DateFormatSymbols java.text.DecimalFormatSymbols java.text.FieldPosition java.text.Format java.text.DateFormat
myDate.setTime(myTime*1000); mDate=formatter.format(myDate); //两个时间之间的天数 SimpleDateFormat myFormatter = new SimpleDateFormat("yyyy-MM-dd"); java.util.Date date= myFormatter.parse("2003-05-1"); java.util.Date mydate= myFormatter.parse("1899-12-30"); ...
SimpleDateFormat SimpleDateFormatallows you to start by choosing any user-defined patterns for date-time formatting. However, you are encouraged to create a date-time formatter with eithergetTimeInstance,getDateInstance, orgetDateTimeInstanceinDateFormat. Each of these class methods can return a date/...