Java – How to add days to current date
This article shows you how to add days to the current date, using the classic java.util.Calendar and the new Java 8 date and time APIs.
Java – Check if the date is older than 30 days or 6 months
This article shows Java 8 and legacy date-time APIs example to check if a date is 30 days or 6 months older than the current date. We can use few…
Java 8 – Difference between two LocalDate or LocalDateTime
In Java 8, we can use Period, Duration or ChronoUnit to calculate the difference between two LocalDate or LocaldateTime: 1 - Period to calculate the difference between two LocalDate, 2…
How to compare dates in Java
This article shows few examples to compare two dates in Java. Updated with Java 8 examples. For the legacy java.util.Date, we can use compareTo, before(), after() and equals() to compare…
Java 8 – ZonedDateTime examples
Few Java 8 java.time.ZonedDateTime examples to show you how to convert a time zone between different countries. The LocalDateTime has no time zone; to convert the LocalDateTime to ZonedDateTime, we…
Java 8 – Convert Date to LocalDate and LocalDateTime
Few examples to convert classic Date to Java Time dates and vice versa: Convert java.util.Date to java.time.LocalDate, Convert java.util.Date to java.time.LocalDateTime, Convert java.util.Date to java.time.ZonedDateTime. The java.util.Date has no concept…
Java 8 – Convert Instant to ZonedDateTime
Java 8 examples to show you how to convert from Instant to ZonedDateTime. Example to convert a Instant UTC+0 to a Japan ZonedDateTime UTC+9. Convert the Japan ZonedDateTime UTC+9 back…
Java 8 – Convert Instant to LocalDateTime
Java 8 examples to show you how to convert from Instant to LocalDateTime and vice versa. The java.time.LocalDateTime has no concept of time zone, just provide a zero offset UTC+0.
Java 8 – Period and Duration examples
Few examples to show you how to use Java 8 Duration, Period and ChronoUnit objects to find out the difference between dates. Duration – Measures time in seconds and nanoseconds.…
How to get current timestamps in Java
This article shows few Java examples to get the current date time or timestamp in Java. (Updated with Java 8): 1 - uses java.sql.Timestamp to get the current timestamp and…