@目录1.日期毫秒数转日期字符串2.检测一个字符串是否是时间格式3.Long转String(时间毫秒数转日期格式字符串)4.String转Long(日期格式字符串转为时间毫秒数)5.Date转String(日期转日期格式字符串)6.String转Date(日期格式字符串转日期)7.Long转Date
public static boolean isValidDate(String str) { boolean convertSuccess = true; // 指定日期格式为四位年/两位月份/两位日期,注意yyyy/MM/dd区分大小写;设置lenient为false. 否则SimpleDateFormat会比较宽松地验证日期,比如2007/02/29会被接受,并转换成2007/03/01 SimpleDateFormat format = new SimpleDateForm...
importjava.util.Calendar;publicclassDateConverter{publicstaticlongconvertToMilliseconds(intyear,intmonth,intday){Calendarcalendar=Calendar.getInstance();calendar.set(year,month-1,day,0,0,0);calendar.set(Calendar.MILLISECOND,0);returncalendar.getTimeInMillis();}publicstaticvoidmain(String[]args){intyear...
**/publicstaticbooleanisValidDate(Stringstr){booleanconvertSuccess=true;// 指定日期格式为四位年/两位月份/两位日期,注意yyyy/MM/dd区分大小写;设置lenient为false. 否则SimpleDateFormat会比较宽松地验证日期,比如2007/02/29会被接受,并转换成2007/03/01SimpleDateFormatformat=newSimpleDateFormat("HH:mm");try...
todayEnd.set(Calendar.MILLISECOND,999);returntodayEnd.getTime(); }publicstaticDateaddDay(Date date,intday){Calendartoday=Calendar.getInstance(); today.setTime(date); today.add(Calendar.DAY_OF_MONTH, day);returntoday.getTime(); }publicstaticDateparseStrToDate(String dateStr){ ...
January 30, 2022Nihal Prasad0 Commentsconversion,Convert a Date to String in Java,How to convert Date to String in Java,java,Program,techdecode,TechDecodeTutorials The Date class represents a precise moment in time, down to the millisecond.Serializable, Cloneable and Comparable interfaces are implem...
Converts this duration to the total length in milliseconds. If this duration is too large to fit in a long milliseconds, then an exception is thrown. If this duration has greater than millisecond precision, then the conversion will drop any excess precision information as though the amount in ...
:29:02:12:01:58:46Read more: https://javarevisited.blogspot.com/2012/12/how-to-convert-millisecond-to-date-in-java-example.html#ixzz7ZdvubnN8 将Date 保持在毫秒内的另一个有用的用法是,在 java.util.Date 和 java.sql.Date 之间转换很容易。SQL 不提供java.util.Date形式的日期,您通常需要将...
*@dateCreate on 2020/7/14 16:35 **/publicclassTimeUtils{ /** * 把时间戳转换为:时分秒 * *@parammillisecond :毫秒,传入单位为毫秒 */publicstaticStringgetTimeString(finallongmillisecond){if(millisecond <1000) {return"0"+"秒"; ...
public static final String FORMAT_YYYY_MM_DD = "yyyy-MM-dd"; public static final String FORMAT_YYMMDD = "yyyyMMdd"; /** * 把日期格式化为yyyy-MM-dd HH:mm:ss字符串 * * @param date * @return */ public static String formatTime(Date date) { SimpleDateFormat sdf = new SimpleDateFormat...