I am trying to calculate the duration between two date objects in minutes. I have found some inspiration during my research from this stackoverflow question. In generally this seems to work correct, …
Tag: datetime
Get last week date range for a date in Java
Suppose I have a Date 20 June 2013 How can I get the Date range for the last week, ie in this case 9 June to 15 June. Also if the date was 2nd June 2013 the range should be 26 may to 1 june Answer this is Java Calendar based solution output it’s localized, in my Locale week starts
Parser Exception for format EEEE, MMMM d, YYYY h:mm:ss a z
I’m getting parser exception on trying to parse string value: To format: This is the program sample: And this is the error message: this is my sample program Answer From the JodaTime docs: Zone names: Time zone names (‘z’) cannot be parsed. However SimpleDateFormat does support parsing of ti…
Displaying AM and PM in lower case after date formatting
After formatting a datetime, the time displays AM or PM in upper case, but I want it in lower case like am or pm. This is my code: Answer Unfortunately the standard formatting methods don’t let you do that. Nor does Joda. I think you’re going to have to process your formatted date by a simple post…
Removing time from a Date object?
I want to remove time from Date object. But when I’m converting this date (which is in String format) it is appending time also. I don’t want time at all. What I want is simply “21/03/2012”. Answer The quick answer is : No, you are not allowed to do that. Because that is what Date use …
Unparseable date exception in java
These lines of codes causees this exception what is the possible solution ? Answer Your format is completely wrong. Not only are you using mm (which means minutes) when you probably meant MM, but this: is clearly not in the format You probably want something like EDIT: That works for me in desktop Java: You m…
How to round time to the nearest quarter hour in java?
Given today’s time e.g. 2:24PM, how do I get it to round to 2:30PM? Similarly if the time was 2:17PM, how do I get it to round to 2:15PM? Answer Rounding You will need to use modulo to truncate the quarter hour: As pointed out by EJP, this is also OK (replacement for the last line, only valid if the
GPS Time Representation library
I am looking for a Java library that handles conversion to/from GPS Time. GPS Time has an epoch of 6 January 1980, and does not have leap seconds, so it differs from the more standard time representations. Here is the relevant description from wikipedia: While most clocks are synchronized to Coordinated Unive…
Convert Month String to Integer in Java
Given a month string such as: Is there any core Java or third party library functionality that would allow you to convert this string to the corresponding month number in a locale agnostic way? Answer An alternative to SimpleDateFormat using Joda time:
How to get the current date and time
How do I get the current date and time in Java? I am looking for something that is equivalent to DateTime.Now from C#.