{"id":2951,"date":"2020-03-29T08:35:00","date_gmt":"2020-03-29T03:05:00","guid":{"rendered":"https:\/\/www.24x7serversupport.com\/blog\/?p=2951"},"modified":"2020-03-29T02:26:24","modified_gmt":"2020-03-28T20:56:24","slug":"how-to-install-openjdk-on-ubuntu-18-04","status":"publish","type":"post","link":"https:\/\/www.24x7serversupport.com\/blog\/how-to-install-openjdk-on-ubuntu-18-04\/","title":{"rendered":"How to Install OpenJDK on Ubuntu 18.04"},"content":{"rendered":"\n<p>There are two different Java packages in Ubuntu repositories, Java Runtime Environment (JRE), and the Java Development Kit (JDK).<\/p>\n\n\n\n<p>If you only want to run Java programs, then you need JRE, which contains only the Java Runtime Environment. Java developer should install JDK, which also includes the development\/debugging tools and libraries.<\/p>\n\n\n\n<p>We will see how to install default OpenJDK version available on Ubuntu 18.04.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"installing-the-default-openjdk-java-11\"><strong>Installing the Default OpenJDK (Java 11)<\/strong><\/h3>\n\n\n\n<p> First, update the\u00a0<code>apt<\/code>\u00a0package index with: <\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">$ sudo apt update <\/pre>\n\n\n\n<p>Once the package index is updated install the default Java OpenJDK package with: <\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">$ sudo apt install default-jdk <\/pre>\n\n\n\n<p> Verify the installation, by running the following command which will print the Java version: <\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">$ java -version <\/pre>\n\n\n\n<p>The output will look something like this: <\/p>\n\n\n\n<pre class=\"wp-block-preformatted\"><code>openjdk version \"11.0.2\" 2019-01-15 <\/code>\n<code>OpenJDK Runtime Environment (build 11.0.2+9-Ubuntu-3ubuntu118.04.3)<\/code>\n<code>OpenJDK 64-Bit Server VM (build 11.0.2+9-Ubuntu-3ubuntu118.04.3, mixed mode, sharing)<\/code><\/pre>\n\n\n\n<p>You should have successfully installed Java on your Ubuntu system. <\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Installing OpenJDK 8<\/strong><\/h3>\n\n\n\n<p>Java 8 is still the most widely-used version of Java. If your application requires Java 8, you can install it by using below commands: <\/p>\n\n\n\n<pre class=\"wp-block-preformatted\"><code>$ sudo apt update<\/code>\n<code>$ sudo apt install openjdk-8-jdk<\/code> <\/pre>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>There are two different Java packages in Ubuntu repositories, Java Runtime Environment (JRE), and the Java Development Kit (JDK). If you only want to run Java programs, then you need JRE, which contains only the Java Runtime Environment. Java developer should install JDK, which also includes the development\/debugging tools and libraries. We will see how [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":2952,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","enabled":false}}},"categories":[166],"tags":[268,270,269],"class_list":["post-2951","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ubuntu","tag-java","tag-jdk","tag-openjdk"],"jetpack_publicize_connections":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>How to Install OpenJDK on Ubuntu 18.04 | 24x7serversupport Blog<\/title>\n<meta name=\"description\" content=\"How to install OpenJDK on Ubuntu 18.04\" \/>\n<meta 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