date

问题 // input format: dd/MM/yy SimpleDateFormat parser = new SimpleDateFormat("dd/MM/yy"); // output format: yyyy-MM-dd SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd"); System.out.println(formatter.format(parser.parse("12/1/20"))); // 0020-11-01 I am using the above code but it is giving me year as '0020' instead of '2020'. 回答1: Use java.time for this: public static void main(String[] args) { String dateString = "12/1/20"; LocalDate localDate = LocalDate.parse(dateString,

问题 I've seen several questions posted about formatting the date and haven't been able to find one to resolve the issue I'm having here. My data ranges from May-November from 2008-2015 and then drops May and goes from June-November from 2016-2018. My goal is to create a plot to show the months sampled for each year and eliminate the months that were not sampled. I asked a similar question here: How to plot mean density by year and month But this answer does not resolve the date issue. I've tried

问题 Hello and thanks in advance for the assistance. I have a program that is supposed to print the current month calendar based on the user inputs of month and year. The program mostly work but i am having issues with formatting and the first day of the month is not starting under the proper date. Example output: October 2020 ------------------------------ Sun Mon Tue Wed Thu Fri Sat 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 October 2020 will begin on a

问题 Hello and thanks in advance for the assistance. I have a program that is supposed to print the current month calendar based on the user inputs of month and year. The program mostly work but i am having issues with formatting and the first day of the month is not starting under the proper date. Example output: October 2020 ------------------------------ Sun Mon Tue Wed Thu Fri Sat 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 October 2020 will begin on a

问题 yy = 15 (year), D = 150 (day of year), HH = 10 (hour) Date myDateWrong = new SimpleDateFormat("yyDHH").parse("1515010"); Date myDateTrue = new SimpleDateFormat("yyD").parse("15150"); myDateTrue is right: 30/05/2015. myDateWrong must be 30/05/2015 10:00:00 but it seem that 28/07/2015 18:00:00. Whats the problem in here? 回答1: I'm going to guess that the wrongDate took a single digit for the month (as you specified) and then took the rest of the digits for the hour (much as it took the rest of

问题 If I pass the unix milliseconds timestamp value for 1/1/1753 (at midnight) (-6847786800000) to the JavaScript Date() constructor in Chrome, the Date Chrome gives me looks really weird. I get other weirdness when I use the Date() constructor that takes seven parameters. Examples are below. Chrome: new Date(-6847786800000): Mon Jan 01 1753 00:03:58 GMT-0456 (Eastern Standard Time) Firefox: new Date(-6847786800000): Mon Jan 01 1753 00:00:00 GMT-0500 (Eastern Standard Time) Note how Chrome made

问题 I have a Google Sheet with three columns: - Date and time (timestamp) - Duration - Description I have an script that when I write something in 'Description', inserts in 'Date' the date and time at this moment, and the 'Duration': function onEdit(e) { if(e.source.getActiveSheet().getName() == "Sheet2" ) { var col = e.source.getActiveCell().getColumn(); if(col == 3 ) { // I'm in column three var cellTimeStamp = e.range.offset(0,-2); // First column of the same row var cellTimeDiff = e.range

问题 I am working with a group that meets the second monday of the month and they want their site to reflect the NEXT meeting date. I have the script to show this months second monday, but i am having trouble with the if else statement. I need it to reflect the next upcoming event and not just this months date. IE. this months event date was Aug 13 2012 which is past the current date (aug 21 2012). I would like it to move to the next available date Sept 10 2012. Below is the code i have so far.

问题 (Excel 2010 VBA) I have a cell (A1) containing a date in the format of mmm-yy ("Custom" category). Foe example, if I enter 1/6/13 the cell shows June-13. That's fine. In my VB macro I need to check this date whether the month is the current month and whether the year is the current year. I don't care about the day. 回答1: Does this help you: Public Sub test() d = Sheet1.Range("A1") n = Now() If Year(d) = Year(n) And Month(d) = Month(n) Then MsgBox "It works" End If End Sub 回答2: Thanks to Dave

问题 Scenario: I am creating an event registration module in which a user would choose a date from a calendar for booking, fill some input fields and pay up to book the date. One of the requirements is that, there can be only one booking per date. This arises a case where two people want to book the same date on the same time. So, we need to show the user who came later to book the date a message that a booking is already in progress for that specific date. Please check back later . For this to