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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.temporal.* ;
  9. import java.time.format.* ;
  10.  
  11. /* Name of the class has to be "Main" only if the class is public. */
  12. class Ideone
  13. {
  14. public static void main (String[] args) throws java.lang.Exception
  15. {
  16.  
  17. long input = 1_422_528_534_032L ; // Numeric literal for a `long` in modern Java.
  18. Instant instant = Instant.ofEpochMilli( input ) ;
  19.  
  20. Instant instantTruncated = instant.truncatedTo( ChronoUnit.DAYS ) ;
  21. long millisSinceEpoch = instantTruncated.toEpochMilli() ;
  22. long delta = ( input - millisSinceEpoch ) ;
  23. Duration d = Duration.ofMillis( delta ) ;
  24.  
  25. System.out.println( "input: " + input ) ;
  26. System.out.println( "instant: " + instant ) ;
  27. System.out.println( "instantTruncated: " + instantTruncated ) ;
  28. System.out.println( "millisSinceEpoch: " + millisSinceEpoch ) ;
  29. System.out.println( "delta: " + delta ) ;
  30. System.out.println( "d.toString(): " + d ) ;
  31.  
  32. }
  33. }
Success #stdin #stdout 0.14s 4386816KB
stdin
Standard input is empty
stdout
input: 1422528534032
instant: 2015-01-29T10:48:54.032Z
instantTruncated: 2015-01-29T00:00:00Z
millisSinceEpoch: 1422489600000
delta: 38934032
d.toString(): PT10H48M54.032S