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Adrian Rivera
Adrian Rivera

Download and Update Java SE 12 - The Most Secure and Stable Java Release


Introduction




Java is one of the most popular programming languages in the world, used for developing applications for various platforms and devices. Java is also known for its backward compatibility, which means that older versions of Java can run on newer versions of the Java virtual machine (JVM).


However, Java is also constantly evolving, adding new features and enhancements to improve its performance, security, and usability. Every six months, a new version of Java is released, with a long-term support (LTS) version every three years. The latest LTS version is Java 11, which was released in September 2018.




download java 12



Java 12 is a non-LTS version of Java that was released in March 2019. It has many new features and enhancements, such as switch expressions, file mismatch method, compact number formatting, teeing collectors in stream API, new methods in String class, JVM constants API, pattern matching for instanceof, and more. You can read more about these features in this .


Java 12 is not intended for production use, but rather for developers who want to experiment with the latest features and provide feedback. It will only receive updates until September 2019, when it will be superseded by Java 13. If you want a stable and supported version of Java, you should use Java 11 or wait for Java 17, which will be the next LTS version.


Before you download and install Java 12, you should check the system requirements for your operating system. According to this , you need at least:


  • 128 MB of RAM



  • 124 MB of disk space for JRE; 2 MB for Java Update



  • Minimum Pentium 2 266 MHz processor



  • A supported browser (Internet Explorer 9 and above, Microsoft Edge, Firefox, Chrome)



Download Java 12




There are two main sources from where you can download Java 12: Oracle website and OpenJDK website.


Download from Oracle Website




If you want to download the official Oracle JDK (Java Development Kit), which includes tools for developing and testing Java applications, you can go to this . You will need an oracle.com account to download these releases. If you don't have one, you can register for one for free.


You will also need to accept the Oracle Technology Network License Agreement for Oracle Java SE, which has changed since April 2019. The new license permits certain uses, such as personal use and development use, at no cost -- but other uses authorized under prior Oracle JDK licenses may no longer be available. You can read more about the license terms .


On the download page, you can choose the file that matches your operating system and architecture (Windows x64, Windows x86, Linux x64, Linux ARM64, macOS x64). The file size is about 150 MB. After downloading the file, you can proceed to install Java 12 on your system.


Download from OpenJDK Website




If you want to download the open source OpenJDK (Java Development Kit), which is the reference implementation of Java SE, you can go to this . You don't need an account or a license to download these releases. You can also find other vendors that provide OpenJDK builds, such as AdoptOpenJDK, Amazon Corretto, Azul Zulu, IBM, Red Hat, and more.


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On the download page, you can choose the file that matches your operating system and architecture (Windows x64, Linux x64, macOS x64). The file size is about 170 MB. After downloading the file, you can proceed to install Java 12 on your system.


Install Java 12




The installation process of Java 12 varies depending on your operating system. Here are the steps for Windows, Linux, and macOS.


Install on Windows




To install Java 12 on Windows, follow these steps:


  • Double-click on the downloaded file (jdk-12.x.x_windows-x64_bin.exe or jdk-12.x.x_windows-x86_bin.exe) to start the installer.



  • Click on Next to accept the default installation settings. You can also change the installation directory if you want.



  • Wait for the installation to complete. You will see a message saying that Java 12 has been successfully installed.



  • Click on Close to exit the installer.



Install on Linux




To install Java 12 on Linux, follow these steps:


  • Open a terminal and navigate to the directory where you downloaded the file (jdk-12.x.x_linux-x64_bin.tar.gz or jdk-12.x.x_linux-arm64_bin.tar.gz).



  • Extract the file using the command: tar -xvf jdk-12.x.x_linux-x64_bin.tar.gz or tar -xvf jdk-12.x.x_linux-arm64_bin.tar.gz



  • This will create a directory called jdk-12.x.x. Move this directory to a location where you want to install Java 12, such as /usr/local/java.



  • You can also rename the directory to something more convenient, such as java-12.



Install on macOS




To install Java 12 on macOS, follow these steps:


  • Double-click on the downloaded file (jdk-12.x.x_osx-x64_bin.dmg) to mount it as a disk image.



  • A window will open with a file called JDK 12.pkg. Double-click on this file to start the installer.



  • Click on Continue to accept the default installation settings. You can also change the installation directory if you want.



  • Enter your administrator password when prompted.



  • Wait for the installation to complete. You will see a message saying that Java 12 has been successfully installed.



  • Click on Close to exit the installer.



Verify Java 12 Installation




To verify that Java 12 has been installed correctly on your system, you need to check the version of Java and set the JAVA_HOME and PATH environment variables.


Check the Version of Java




To check the version of Java 12, open a command prompt (Windows) or a terminal (Linux and macOS) and type: java -version


You should see an output similar to this:


java version "12" 2019-03-19 Java(TM) SE Runtime Environment (build 12+33) Java HotSpot(TM) 64-Bit Server VM (build 12+33, mixed mode, sharing)


If you see this output, it means that Java 12 is working properly on your system. If you see a different version or an error message, it means that something went wrong with the installation or that you have another version of Java in your path.


Set the JAVA_HOME and PATH Environment Variables




To make sure that your system can find and run Java 12 correctly, you need to set two environment variables: JAVA_HOME and PATH. These variables tell your system where Java is installed and how to access it from any directory.


The way to set these variables depends on your operating system. Here are the steps for Windows, Linux, and macOS.


Set on Windows




To set the JAVA_HOME and PATH variables on Windows, follow these steps:


  • Right-click on the Start button and select System.



  • Click on Advanced system settings on the left panel.



  • Click on Environment Variables at the bottom of the System Properties window.



  • Under System variables, click on New to create a new variable.



  • Type JAVA_HOME as the variable name and the path to your Java 12 installation directory as the variable value. For example, C:\Program Files\Java\jdk-12.



  • Click on OK to save the variable.



  • Under System variables, find the variable named Path and click on Edit.



  • Click on New and type %JAVA_HOME%\bin as the new entry.



  • Click on OK to save the changes.



  • Close all the windows and restart your system for the changes to take effect.



Set on Linux




To set the JAVA_HOME and PATH variables on Linux, follow these steps:


  • Open a terminal and type: sudo nano /etc/profile to edit the global profile file.



  • Type export JAVA_HOME=/usr/local/java/java-12 at the end of the file, where /usr/local/java/java-12 is the path to your Java 12 installation directory. You can also use any other editor of your choice.



  • Type export PATH=$JAVA_HOME/bin:$PATH to append the Java 12 bin directory to your path.



  • Press Ctrl+O and then Enter to save the file.



Press Ctrl+X to exi


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