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July 12, 2018 18:47
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Working with Java LocaleDateTime and Date Utils
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| import java.time.Instant; | |
| import java.time.ZoneId; | |
| import java.time.ZoneOffset; | |
| import java.util.Date; | |
| /** | |
| * Must read articles to understand this better | |
| * https://stackoverflow.com/questions/21242110/convert-java-util-date-to-java-time-localdate | |
| * https://stackoverflow.com/questions/33066904/localdate-to-java-util-date-and-vice-versa-simplest-conversion | |
| * https://stackoverflow.com/questions/35183146/how-can-i-create-a-java-8-localdate-from-a-long-epoch-time-in-milliseconds | |
| */ | |
| // Conversions to keep the Locale stuff intact: (remember you can go left to right OR from right to left | |
| // Date <-> Instance <-> ZonedDateTime <-> LocaleDateTime | |
| public class WorkingWithDateTime { | |
| public static void main(String[] args) { | |
| Date now = Date.from( | |
| Instant.ofEpochMilli(System.currentTimeMillis()) | |
| .atZone(ZoneId.of("UTC")) | |
| .toLocalDateTime() | |
| .atZone(ZoneOffset.UTC) | |
| .toInstant() | |
| ); | |
| Date threeMonths = Date.from( | |
| Instant.now().atZone(ZoneId.of("UTC")).plusMonths(3).toInstant() | |
| ); | |
| if(threeMonths.after(now)) { | |
| System.out.println("PASS"); | |
| } else { | |
| System.out.println("FAIL"); | |
| } | |
| } | |
| } |
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