Java 8 – Convert Epoch time milliseconds to LocalDate or LocalDateTime
by In Java 8, we can use Instant.ofEpochMilli().atZone() to convert the epoch time in milliseconds back to LocalDate or LocalDateTime
Tag: convert
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 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 of time zone, and only represents the number of seconds passed since the Unix epoch time. The new Java 8 java.time.Instant is the equivalent class to the classic java.util.Date. The idea of the date conversion is to convert to an instant with a time zone.
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 to a Instant UTC+0/Z, the offset is taken care automatically.
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.
How to convert String to Date – Java
In this tutorial, we will show you how to convert a String to java.util.Date. Many Java beginners are stuck in the Date conversion, hope this summary guide will helps you in some ways.
Java – Convert String to double
In Java, we can use Double.parseDouble() to convert a String to primitive double, and we can use Double.valueOf() to convert a String to an Double object.
Java 8 – Convert a Stream to List
A Java 8 example to show you how to convert a Stream to a List via Collectors.toList Java8Example1.java Output Yet another example, filter a number 3 and convert it to …
Java 8 – How to convert String to LocalDate
Here are a few Java examples of converting a String to the new Java 8 Date API – java.time.LocalDate. The key is understand the DateTimeFormatter patterns. If the date is unable to parse, it will throw DateTimeParseException.
Java 8 Function Examples
In Java 8, Function is a functional interface; it takes an argument (object of type T) and returns an object (object of type R). The argument and output can be a different type.