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  1. /* package whatever; // don't place package name! */
  2.  
  3. import java.util.*;
  4. import java.lang.*;
  5. import java.io.*;
  6.  
  7. import java.time.* ;
  8. import java.time.format.* ;
  9. import java.time.temporal.* ;
  10. import java.time.chrono.* ;
  11. import java.time.zone.* ;
  12.  
  13. /* Name of the class has to be "Main" only if the class is public. */
  14. class Ideone
  15. {
  16. public static void main (String[] args) throws java.lang.Exception
  17. {
  18. DateTimeFormatter f = DateTimeFormatter.ofPattern( "d.M" ) ;
  19. MonthDay monthDay = MonthDay.parse( "23.1" , f ) ;
  20.  
  21. int year = Year.now( ZoneOffset.UTC ).getValue() ;
  22. LocalDate localDate = monthDay.atYear( year ) ;
  23. ZonedDateTime zdt = localDate.atStartOfDay( ZoneOffset.UTC ) ;
  24.  
  25. Instant instant = zdt.toInstant() ;
  26. long millis = instant.toEpochMilli() ;
  27.  
  28. System.out.println( "monthDay.toString(): " + monthDay ) ;
  29. System.out.println( "zdt.toString(): " + zdt ) ;
  30. System.out.println( "instant.toString(): " + instant ) ;
  31. System.out.println( "millis.toString(): " + millis ) ;
  32. }
  33. }
Success #stdin #stdout 0.12s 37484KB
stdin
Standard input is empty
stdout
monthDay.toString(): --01-23
zdt.toString(): 2020-01-23T00:00Z
instant.toString(): 2020-01-23T00:00:00Z
millis.toString(): 1579737600000