Dates in Java

Hey guys! I am saving a Date in my config:

Date d = new Date(System.currentTimeMillis());

Now I have a String

String datefromconfig = "2016-08-02T22:22:31.369Z";

I want to transform this String back to an Date. It is the standard java date format. How can I do that?

Thank you! (I want to compare it to the date at the moment, so it needs to be in that excact format)

 

Google is your friend.

Code:

Date <varName> = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss.SSS").parse(string);

You may have to tweak the format to fit yours, not sure what the T and Z are for.

 

If this value is purely for your code to use and not for the user to understand and/or change, then consider using the system millisecond time rather than dates.

 

if you want to save the date, I recommend you saving the System.currentTimesMilis() and if you want to get the date at that time, initialize the date with that value... Example:

Code:

//if you want to save the date initialization time do this:
long currentMillis = System.currentTimeMillis();
Date d = new Date(currentMillis);`
//do whatever u want here
getConfig.set("dateMillis", currentMillis);
//in another part of the code...
Date d = new Date(getConfig().getLong("dateMillis"));


//OR if you want to store the date at the end or at any time u just change the place where u put the line "long currentMillis = System.currentTimeMillis();"

if I didn't answer your question, tell me...