You may need the Java Development Kit (JDK) in addition to the JRE in order to compile and run some specific Java-based software. OpenJDK 64-Bit Server VM (build 11.0.7+10-post-Ubuntu-2ubuntu218.04, mixed mode, sharing) OpenJDK Runtime Environment (build 11.0.7+10-post-Ubuntu-2ubuntu218.04) Verify the installation with: java -version The JRE will allow you to run almost all Java software. If Java is not currently installed, you’ll see the following output: OutputĬommand 'java' not found, but can be installed with:Įxecute the following command to install the default Java Runtime Environment (JRE), which will install the JRE from OpenJDK 11: sudo apt install default-jre Next, check if Java is already installed: java -version To install this version, first, update the package index: sudo apt update By default, Ubuntu 18.04 includes OpenJDK version 11, which is an open-source variant of the JRE and JDK. The easiest option for installing Java is to use the version packaged with Ubuntu. The JDK is available for multiple platforms, including Windows, Linux, and macOS. It includes the Java Runtime Environment (JRE), a compiler, a debugger, and other utilities essential for Java development. The Java Development Kit (JDK) is a software development kit used by Java developers to create Java applications. This article will look in-depth at the Java Development Kit, its features, use cases, advantages, disadvantages, alternatives, and more. The JDK includes tools such as a compiler, debugger, and other utilities essential for Java development. Java is one of the world’s most widely used programming languages, and the Java Development Kit (JDK) is the software development kit (SDK) used by Java developers to create applications. Testing java command (JRE): java -version 7.A comprehensive guide for Java Development Kit bashrc file: DEV_TOOLS="/home/$USER/DevTools" JAVA_HOME="$DEV_TOOLS/JDK/ jdk-11.0.7+10" export JAVA_HOME PATH="$JAVA_HOME/bin:$PATH"ĥ.2 Reset PATH: source ~/.bashrc 6. Edit the following file: sudo nano ~/.bashrcĥ.1 Add to the end of the. Set the path of OpenJDK directory in the Ubuntu environment variables. This avoids having to move the directory after extracting it.Ĥ.1 Check for the correct OpenJDK file extracted: ls -l ~/DevTools/JDK/ 5. The -C option changes the destination directory for the file extraction. Extracting OpenJDK file: tar -zxvf ~/Downloads/ OpenJDK11U-jdk ***tar.gz -C ~/DevTools/JDK/ Download the OpenJDK 11 LTS Version (“tar.gz”), here:ģ.1 Check for the correct OpenJDK file download: ls -l ~/Downloads 4. Create a sub-directory, in the DevTools, called JDK: sudo mkdir ~/DevTools/JDK 3. TIP: Use that directory to install any others development tools, software development kits et all. Create a Development Tools directory in your home directory, called DevTools (or use an appropriate name): sudo mkdir ~/DevTools If it is necessary to disable, configure, update or remove OpenJDK, there is a way in which you have full control over this tool within your operating system. There’s a better way to install and set OpenJDK, not only Ubuntu but in all your Linux distributions. Probably you would want to install OpenJDK 11 by using Ubuntu command line by the default Ubuntu packages repository: sudo apt install open-11-jdk -yĭespite being the simplest and most practical way, it’s highly NOT recommended to do that way.
0 Comments
Leave a Reply. |