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[#]: collector: (lujun9972)
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[#]: translator: (geekpi)
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[#]: reviewer: ( )
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[#]: publisher: ( )
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[#]: url: ( )
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[#]: subject: (Oracle Announces Java 14! How to Install it on Ubuntu Linux)
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[#]: via: (https://itsfoss.com/java-14-ubuntu/)
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[#]: author: (Ankush Das https://itsfoss.com/author/ankush/)
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Oracle Announces Java 14! How to Install it on Ubuntu Linux
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======
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Recently, Oracle announced the general availability of Java 14 (or the Oracle JDK 14). If you are someone who wants to have the latest and greatest to experiment and develop stuff – you can try installing Java 14 on your Linux system.
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Oracle JDK 14 (or simply Java 14) [release][1] includes a couple of new features if you’re interested to preview them. I’ve linked them below:
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* [Pattern matching for instanceof][2]
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* [Records][3]
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* [Text Blocks][4]
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In addition to the preview features, it packs in several improvements and additions. Quoting the press release, they mentioned the additional improvements as well:
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> Additionally, the latest Java release adds Java language support for switch expressions, exposes new APIs for continuous monitoring of JDK Flight Recorder data, extends the availability of the low-latency Z Garbage Collector to macOS and Windows, and adds, in incubator modules, the packaging of self-contained Java applications and a new Foreign memory access API for safe, efficient access to memory outside of the Java heap.
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Of course, if you want to dive into the exact details, you should check the [official announcement][1].
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In this tutorial, I’ll show you the easy way to get Java 14 installed on your Ubuntu system. Read on.
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**Note:** If you opt for Oracle Java 11 or above, you should learn about the new [Oracle Technology Network License Agreement][5] to know how it affects personal users, developers, and commercial organizations. Usually, these are free to use for development and testing – but not for production.
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### How To Install Java 14 on Ubuntu Linux?
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![][6]
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For reference, I’ve successfully tried it on **Pop!_OS 19.10** where I had the **OpenJDK 11** installed as the default.
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Here, we are going to use the Java 14 installer (originally based on WebUpd8 Java Package) by [Linux Uprising][7].
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Simply enter the commands below in the terminal to get it installed:
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```
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sudo add-apt-repository ppa:linuxuprising/java
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sudo apt update
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sudo apt install oracle-java14-installer
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```
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This should do the job. And, when it’s done, if you want to make it the default, you can type in the following command to do it:
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```
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sudo apt install oracle-java14-set-default
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```
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It is worth noting that this is only for Ubuntu-based distributions. If you want to install it on Debian and other Linux distributions, you can follow [Linux Uprising’s detailed guide][7] on installing Java 14 as well.
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### Wrapping Up
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Of course, while this is about the bleeding edge features – if you do not want to break things, you might want to hold on to Java 11. If you want to experiment while knowing the risks, go ahead and give it a try!
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Feel free to let me know your thoughts on Java 14 in the comments below.
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--------------------------------------------------------------------------------
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via: https://itsfoss.com/java-14-ubuntu/
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作者：[Ankush Das][a]
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选题：[lujun9972][b]
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译者：[译者ID](https://github.com/译者ID)
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校对：[校对者ID](https://github.com/校对者ID)
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本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
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[a]: https://itsfoss.com/author/ankush/
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[b]: https://github.com/lujun9972
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[1]: https://www.oracle.com/corporate/pressrelease/oracle-announces-java14-031720.html
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[2]: https://openjdk.java.net/jeps/305
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[3]: https://openjdk.java.net/jeps/359
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[4]: https://openjdk.java.net/jeps/368
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[5]: https://www.oracle.com/technetwork/java/javase/overview/oracle-jdk-faqs.html
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[6]: https://i1.wp.com/itsfoss.com/wp-content/uploads/2020/03/install-java-14-ubuntu.png?ssl=1
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[7]: https://www.linuxuprising.com/2020/03/how-to-install-oracle-java-14-jdk14-on.html
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@ -0,0 +1,82 @@
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[#]: collector: (lujun9972)
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[#]: translator: (geekpi)
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[#]: reviewer: ( )
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[#]: publisher: ( )
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[#]: url: ( )
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[#]: subject: (Oracle Announces Java 14! How to Install it on Ubuntu Linux)
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[#]: via: (https://itsfoss.com/java-14-ubuntu/)
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[#]: author: (Ankush Das https://itsfoss.com/author/ankush/)
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Oracle 发布 Java 14！如何在 Ubuntu Linux 上安装
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======
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最近，Oracle 宣布 Java 14（或 Oracle JDK 14）正式开放。如果你想进行最新的实验或者开发的话，那么你可以试试在 Linux 系统上安装 Java 14。
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Oracle JDK 14（或简称 Java 14）[发行版][1]包含几个新功能，如果你想预览它们的话。我已添加了链接：
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* [instanceof 的模式匹配][2]
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* [Records][3]
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* [Text Blocks][4]
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除预览功能外，它还包含一些改进和补充。在新闻中，他们还提到了其他改进：
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>此外，最新的 Java 版本增加了 Java 语言对 switch 表达式的支持，新增了用于持续监控 JDK Flight Recorder 数据的新 API，将低延迟 zgc 扩展到了 macOS 和 Windows，并添加在 incubator 模块中，独立的 Java 应用打包和为了安全的新的外部内存访问 API 来有效地访问 Java 堆外部的内存。
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当然，如果你想详细了解细节，那么你应查看[官方公告][1]。
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在本教程中，我将向你展示在 Ubuntu 系统上安装 Java 14 的简便方法。继续阅读。
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**注意：**如果你选择 Oracle Java 11 或更高版本，那么应该了解新的 [Oracle 技术网络许可协议][5]，以了解它如何影响个人用户、开发人员和商业组织。通常，它们可以免费用于开发和测试，但不能用于生产。
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### 如何在 Ubuntu Linux 上安装 Java 14？
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![][6]
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作为参考，我已成功在默认安装 **OpenJDK 11** 的 **Pop!_OS 19.10** 上成功安装了它。
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这里，我们将使用 [Linux Uprising][7] 的 Java 14 安装程序（最初基于 WebUpd8 Java 软件包）。
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只需在终端中输入以下命令即可进行安装：
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```
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sudo add-apt-repository ppa:linuxuprising/java
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sudo apt update
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sudo apt install oracle-java14-installer
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```
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这应该就完成了，如果你想将它设为默认，那么你可以输入以下命令：
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```
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sudo apt install oracle-java14-set-default
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```
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值得注意的是，这仅适用于基于 Ubuntu 的发行版。如果要在 Debian 和其他 Linux 发行版上安装它，那么也可以按照 [Linux Uprising 中的详细指南][7]安装 Java 14。
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### 总结
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当然，这些是最新的特性，如果你不想破环环境，你或许会希望继续使用 Java11。如果你想在了解风险的情况下进行试验，请继续尝试！
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欢迎在下面的评论中让我知道你对 Java 14 的想法。
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--------------------------------------------------------------------------------
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via: https://itsfoss.com/java-14-ubuntu/
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作者：[Ankush Das][a]
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选题：[lujun9972][b]
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译者：[geekpi](https://github.com/geekpi)
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校对：[校对者ID](https://github.com/校对者ID)
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本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
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[a]: https://itsfoss.com/author/ankush/
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[b]: https://github.com/lujun9972
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[1]: https://www.oracle.com/corporate/pressrelease/oracle-announces-java14-031720.html
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[2]: https://openjdk.java.net/jeps/305
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[3]: https://openjdk.java.net/jeps/359
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[4]: https://openjdk.java.net/jeps/368
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[5]: https://www.oracle.com/technetwork/java/javase/overview/oracle-jdk-faqs.html
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[6]: https://i1.wp.com/itsfoss.com/wp-content/uploads/2020/03/install-java-14-ubuntu.png?ssl=1
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[7]: https://www.linuxuprising.com/2020/03/how-to-install-oracle-java-14-jdk14-on.html
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