如何在Java 9中使用JShell取得日期和時間？

JShell is an interactive command-line tool that can allow us to learn, investigate, and explore the Java language and their API. We can type any valid java code into the console and get immediate results without the need to write a verbose class with the main() method.

If we want to get the current date with time in JShell by using the below code snippet.

<strong>C:\Users\User>jshell
| Welcome to JShell -- Version 9.0.4
| For an introduction type: /help intro

jshell> new Date()
$1 ==> Fri Feb 28 11:59:23 IST 2020

jshell></strong>

在下面的代码片段中，我们需要获取一个日期和毫秒数。

<strong>jshell> new Date().getTime()
$2 ==> 1582871487654

jshell> System.currentTimeMillis()
$3 ==> 1582871513421

jshell> new Date(1582871513421L)
$4 ==> Fri Feb 28 12:01:53 IST 2020

jshell></strong>

In the below code snippet, we need to get the time.

<strong>jshell> java.time.Instant.now()
$5 ==> 2020-02-28T07:07:33.941720100Z

jshell></strong>

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