{"id":10150,"date":"2026-07-19T12:35:49","date_gmt":"2026-07-19T07:05:49","guid":{"rendered":"https:\/\/xenaxcloud.com\/blog\/?p=10150"},"modified":"2026-07-19T12:35:49","modified_gmt":"2026-07-19T07:05:49","slug":"install-java-in-ubuntu","status":"publish","type":"post","link":"https:\/\/xenaxcloud.com\/blog\/install-java-in-ubuntu\/","title":{"rendered":"Install Java in Ubuntu: Complete Step-by-Step Guide"},"content":{"rendered":"\n

Knowing how to install Java in Ubuntu<\/strong> is an essential skill for developers, system administrators, and businesses running Java-based applications. Whether you’re deploying enterprise software, hosting Minecraft servers, running Jenkins, or building Spring Boot applications, Java remains one of the world’s most widely used programming platforms.<\/p>\n\n\n\n

Modern Ubuntu servers provide an excellent environment for Java because they are secure, stable, lightweight, and highly scalable. Combined with enterprise-grade VPS hosting from India, Ubuntu delivers outstanding performance for developers serving users across Asia and worldwide. If you’re planning to install Java in Ubuntu<\/a><\/strong>, understanding the correct installation method helps improve application stability, simplifies updates, and ensures long-term compatibility.<\/p>\n\n\n\n

<\/p>\n\n\n

\n
\"Install<\/figure>\n<\/div>\n\n\n

<\/p>\n\n\n\n

Why Install Java in Ubuntu?<\/h2>\n\n\n\n

Many enterprise applications require Java to function correctly. Ubuntu provides official repositories that make Java installation simple, secure, and easy to maintain.<\/p>\n\n\n\n

Reasons to install Java in Ubuntu<\/strong> include:<\/p>\n\n\n\n

    \n
  • Run Java applications<\/li>\n\n\n\n
  • Deploy Spring Boot projects<\/li>\n\n\n\n
  • Host Minecraft servers<\/li>\n\n\n\n
  • Build Android applications<\/li>\n\n\n\n
  • Run Jenkins automation<\/li>\n\n\n\n
  • Execute Apache Tomcat<\/li>\n\n\n\n
  • Use Elasticsearch<\/li>\n\n\n\n
  • Develop enterprise software<\/li>\n<\/ul>\n\n\n\n

    Because Ubuntu includes trusted package repositories, installing Java is safer than downloading software from unknown sources.<\/p>\n\n\n\n

    Install Java in Ubuntu Using OpenJDK<\/h2>\n\n\n\n

    The easiest way to install Java in Ubuntu<\/strong> is by using OpenJDK, the official open-source implementation of the Java Platform.<\/p>\n\n\n\n

    Step 1: Update Ubuntu<\/h3>\n\n\n\n

    First, update your package list.<\/p>\n\n\n\n

    sudo apt update\n<\/code><\/pre>\n\n\n\n
    Updating packages ensures Ubuntu downloads the latest Java version available from official repositories.<\/p>\n\n\n\n
    Step 2: Install OpenJDK<\/h3>\n\n\n\n
    Install the default Java package.<\/p>\n\n\n\n
    sudo apt install default-jdk -y\n<\/code><\/pre>\n\n\n\n
    Alternatively, install a specific version such as OpenJDK 17.<\/p>\n\n\n\n
    sudo apt install openjdk-17-jdk -y\n<\/code><\/pre>\n\n\n\n
    OpenJDK 17 is currently one of the most widely recommended Long-Term Support (LTS) releases for production environments.<\/p>\n\n\n\n
    Step 3: Verify Installation<\/h3>\n\n\n\n
    After installation completes, verify Java.<\/p>\n\n\n\n
    java -version\n<\/code><\/pre>\n\n\n\n
    Example output:<\/p>\n\n\n\n
    openjdk version \"17.0.x\"\n<\/code><\/pre>\n\n\n\n
    If the version appears successfully, you have completed the install Java in Ubuntu<\/strong> process.<\/p>\n\n\n\n
    How to Check Installed Java Version<\/h2>\n\n\n\n
    Sometimes multiple Java versions are installed on the same server.<\/p>\n\n\n\n
    To verify the active version:<\/p>\n\n\n\n
    java -version\n<\/code><\/pre>\n\n\n\n
    To locate Java:<\/p>\n\n\n\n
    which java\n<\/code><\/pre>\n\n\n\n
    To display compiler version:<\/p>\n\n\n\n
    javac -version\n<\/code><\/pre>\n\n\n\n
    These commands help administrators verify that Java has been installed correctly.<\/p>\n\n\n\n
    Install Multiple Java Versions<\/h2>\n\n\n\n
    Developers often need different Java versions for different applications.<\/p>\n\n\n\n
    Ubuntu supports multiple Java installations simultaneously.<\/p>\n\n\n\n
    For example:<\/p>\n\n\n\n
    sudo apt install openjdk-11-jdk\n<\/code><\/pre>\n\n\n\n
    sudo apt install openjdk-17-jdk\n<\/code><\/pre>\n\n\n\n
    sudo apt install openjdk-21-jdk\n<\/code><\/pre>\n\n\n\n
    This flexibility allows developers to test applications across different Java releases without reinstalling the operating system.<\/p>\n\n\n\n
    Switch Between Java Versions<\/h2>\n\n\n\n
    If multiple Java versions exist, Ubuntu allows administrators to select the default version.<\/p>\n\n\n\n
    Run:<\/p>\n\n\n\n
    sudo update-alternatives --config java\n<\/code><\/pre>\n\n\n\n
    Ubuntu displays all installed Java versions.<\/p>\n\n\n\n
    Example:<\/p>\n\n\n\n
    Selection    Path\n1            Java 11\n2            Java 17\n3            Java 21\n<\/code><\/pre>\n\n\n\n
    Enter the preferred number to switch the active Java installation.<\/p>\n\n\n\n
    Choosing the Right VPS for Java Applications<\/h2>\n\n\n\n
    Running Java applications requires sufficient CPU, RAM, and storage to maintain smooth performance. Small projects may run on entry-level VPS plans, while enterprise applications often require additional resources for databases, APIs, and background services.<\/p>\n\n\n\n
    If you’re planning to install Java in Ubuntu<\/strong> for production workloads, choosing a reliable VPS platform is just as important as selecting the correct Java version. You can explore Linux VPS Hosting<\/strong> for scalable virtual servers with dedicated resources, root access, and reliable infrastructure.<\/p>\n\n\n\t\t
    \n\t\t\t\t
    \n\t\t\t\t\t
    \n\t\t\t\t
    \n\t\t\t\t
    \n\t\t\t\t\t\r\n\r\n\r\n\r\n