![]() It may depends on the type of O.S, processor type (i.e. The JDK is a development environment for building applications using the Java programming language. ![]() Note: We Assumed that the downloaded file is named jdk-8u51-linux-圆4.tar.gz and used this name in all the commands used in steps 2, 4 and 5. Technologies JavaSE Java SE 16 Archive Downloads Java SE 16 Archive Downloads Go to the Oracle Java Archive page. Java HotSpot(TM) Server VM (build 25.51-xxx, mixed mode) Java(TM) SE Runtime Environment (build 1.8.0_51-xxx) If installation is succesful, it will display like the following: java version "1.8.0_51" Reload sytem wide PATH /etc/profile by this command: source /etc/profileĬheck Java JDK version by java -version command. Sudo update-alternatives -set javaws /usr/local/java/jdk1.8.0_51/bin/javaws Sudo update-alternatives -set javac /usr/local/java/jdk1.8.0_51/bin/javac Now, check that Java is installed on your system or not using the following. Make Oracle Java JDK as default by this following commands: sudo update-alternatives -set java /usr/local/java/jdk1.8.0_51/bin/java Open the terminal on your system using ‘Ctrl + Alt+ t’ or through the application search bar as follows: To start the installation of Java on Ubuntu 20.04 first, you need to update the apt repository on your system using the following command: sudo apt update. sudo apt install openjdk-14-jdk-headless. Update the repo and then install the OpenJDK version 14 using the apt command: sudo apt update. Sudo update-alternatives -install "/usr/bin/javaws" "javaws" "/usr/local/java/jdk1.8.0_51/bin/javaws" 1 Step 1 Installing OpenJDK version 14 on Ubuntu 20.04 LTS. Sudo update-alternatives -install "/usr/bin/javac" "javac" "/usr/local/java/jdk1.8.0_51/bin/javac" 1 Tell the system that the new Oracle Java version is available by the following commands: sudo update-alternatives -install "/usr/bin/java" "java" "/usr/local/java/jdk1.8.0_51/bin/java" 1 Update PATH file by opening /etc/profile file by the command sudo nano /etc/profile and paste the following at the end of the file: JAVA_HOME=/usr/local/java/jdk1.8.0_51 To do this, cd into directory where downloaded file is located and use this command for copying that file to /usr/local/java/: sudo cp -r jdk-8u51-linux-圆4.tar.gz /usr/local/java/ĬD into /usr/local/java/ directory and extract that copied file by using this command: sudo tar xvzf jdk-8u51-linux-圆4.tar.gzĪfter extraction you must see a folder named jdk1.8.0_51. To find which version is your OS, check hereĬreate a folder named java in /usr/local/by this command: sudo mkdir -p /usr/local/javaĬopy the Downloaded file in the directory /usr/local/java. ![]() Note: download appropriate file, for example if your system is 圆4 Ubuntu (i.e, Debian) the download file is named like this: jdk-8u51-linux-圆4.tar.gz Remove OpenJDK completely by this command: sudo apt-get purge openjdk-\* This package will run an installer for The OpenJDK 8, which is the latest LTS version available for Ubuntu 16.04 release. Install OpenJDK 8: sudo apt-get install openjdk-8-jdk. You can completely remove the OpenJDK and fresh Install Oracle Java JDK by following these steps: Install the Main repository with apt: sudo apt-get update.
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