Android Java Parse Date From String
Solution 1:
You need to change the second MM (months) to mm (minutes):
SimpleDateFormatdateFormatDateAndTime=newSimpleDateFormat("ddMMyyyyHHmm");
Solution 2:
Log.v(TAG, "startDateTime: " + startDateTime + "stopDateTime: " + stopDateTime);
//Fri Oct 06 01:00:00 GMT+05:30 2017 Fri Jan 06 04:00:00 GMT+05:30 2017You output date object, not string. When you use this: "startDateTime: " + startDateTime + "stopDateTime: " + stopDateTime, java will call method toString() in stopDateTime and startDateTime objects.
Solution 3:
tl;dr
LocalDateTime.parse(
"060420150134" ,
DateTimeFormatter.ofPattern( "ddMMuuuuHHmm" )
).atOffset( ZoneOffset.UTC )
Using java.time
As the correct accepted Answer says, your formatting pattern is incorrect.
Also, you are using the troublesome old date-time classes that are now legacy, supplanted by the java.time classes. See below for Android info.
The formatting pattern codes are similar but not exactly identical. So study the class doc for DateTimeFormatter.
Stringinput="060420150134" ;
DateTimeFormatterf= DateTimeFormatter.ofPattern( "ddMMuuuuHHmm" );
Your input string lacks any indicator of offset-from-UTC or time zone. So we parse as a LocalDateTime.
LocalDateTimeldt= LocalDateTime.parse( input , f );
If you know for certain the time zone or offset intended for this data, apply a ZoneId to get a ZonedDateTime or apply a ZoneOffset to get a OffsetDateTime. Apparently in your context UTC itself is intended.
OffsetDateTimeodt= ldt.atOffset( ZoneOffset.UTC ) ;
About java.time
The java.time framework is built into Java 8 and later. These classes supplant the troublesome old legacy date-time classes such as java.util.Date, Calendar, & SimpleDateFormat.
The Joda-Time project, now in maintenance mode, advises migration to the java.time classes.
To learn more, see the Oracle Tutorial. And search Stack Overflow for many examples and explanations. Specification is JSR 310.
Where to obtain the java.time classes?
- Java SE 8 and SE 9 and later
- Built-in.
- Part of the standard Java API with a bundled implementation.
- Java 9 adds some minor features and fixes.
- Java SE 6 and SE 7
- Much of the java.time functionality is back-ported to Java 6 & 7 in ThreeTen-Backport.
- Android
- The ThreeTenABP project adapts ThreeTen-Backport (mentioned above) for Android specifically.
- See How to use ThreeTenABP….
The ThreeTen-Extra project extends java.time with additional classes. This project is a proving ground for possible future additions to java.time. You may find some useful classes here such as Interval, YearWeek, YearQuarter, and more.
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