UPDATE: The Joda-Time project, now in maintenance mode, advises migration to the java.time classes. You may find some useful classes here such as Interval, YearWeek, YearQuarter, and more. This project is a proving ground for possible future additions to java.time. The ThreeTen-Extra project extends java.time with additional classes. For earlier Android (Later versions of Android bundle implementations of the java.time classes.Most of the java.time functionality is back-ported to Java 6 & 7 in ThreeTen-Backport.Java 9 adds some minor features and fixes.Java SE 8, Java SE 9, Java SE 10, Java SE 11, and later - Part of the standard Java API with a bundled implementation.No need for strings, no need for java.sql.* classes. Use a JDBC driver compliant with JDBC 4.2 or later. You may exchange java.time objects directly with your database. The Joda-Time project, now in maintenance mode, advises migration to the java.time classes. And search Stack Overflow for many examples and explanations. These classes supplant the troublesome old legacy date-time classes such as, Calendar, & SimpleDateFormat. The java.time framework is built into Java 8 and later. OffsetDateTime now = OffsetDateTime.now( ZoneOffset.UTC ) ĭump to console… ( "now.toString(): " + now ) If you want more flexible formatting, or other additional features, then apply an offset-from-UTC of zero, for UTC itself ( ZoneOffset.UTC constant) to get a OffsetDateTime. That format outputs zero, three, six or nine digits digits ( milliseconds, microseconds, or nanoseconds) as necessary to represent the fraction-of-second. It’s toString method generates a String representation of its value using one specific ISO 8601 format. Java 9 brings a fresh implementation of Clock captures the current moment in up to the full nanosecond capability of this class, depending on the ability of your host computer’s clock hardware. In Java 8, the current moment is captured with only up to milliseconds resolution. That Instant class is the basic building block in java.time, representing a moment on the timeline in UTC with a resolution of nanoseconds. Getting current time in UTC/GMT is a simple one-liner… Instant instant = Instant.now() Java 8 brings an excellent new java.time.* package to supplant the old /Calendar classes. Instead, use either of these competent date-time libraries: The, j.u.Calendar, and classes bundled with Java are notoriously troublesome. Confusingly to the naïve programmer, a Date seems to have a time zone but does not. But its toString implementation applies the JVM’s default time zone when generating the String representation of that date-time value. Generate a String to represent that value: Instant.now().toString()Īs the correct answer by Jon Skeet stated, a object has no time zone †. Tl dr Instant.now() // Capture the current moment in UTC.
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