Oracle’s licensing agreement for Java doesn’t allow automatic installation through package managers. Next, let’s look at how to install Oracle’s official JDK and JRE. Verify that the JDK is installed by checking the version of javac, the Java compiler: javac -version To install the JDK, execute the following command, which will also install the JRE: sudo apt install default-jdk 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. A comprehensive guide for Java Development Kit
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