How to Download Java 12 for Windows
Java is one of the most popular programming languages in the world, used for developing applications for various platforms and devices. Java 12 is the latest release of Java, which brings new features and improvements to the language and the platform.
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If you want to learn how to download Java 12 for Windows, you have come to the right place. In this article, you will learn:
What is Java 12 and why you might want to download it
What are the prerequisites and system requirements for installing Java 12 on Windows
How to check if Java is already installed on your system
How to download and install Java 12 on Windows
How to set environmental variables in Java
How to test the Java installation by writing and running a simple program
By the end of this article, you will be able to download, install, and use Java 12 on your Windows system.
Introduction
Java is a general-purpose, object-oriented, and platform-independent programming language that was created by James Gosling at Sun Microsystems in 1995. It is designed to be simple, secure, portable, robust, and high-performance.
Java runs on a virtual machine called the Java Virtual Machine (JVM), which translates the compiled Java code into machine code that can be executed by any operating system. This makes Java applications compatible with different platforms, such as Windows, Linux, Mac OS, Android, etc.
Java also comes with a rich set of libraries and tools that provide various functionalities, such as networking, database access, user interface design, graphics, security, etc.
Java 12 is the latest version of Java, which was released in March 2019. It is a non-long-term support (LTS) version, which means that it will receive updates only until September 2019. The next LTS version will be Java 17, which is expected to be released in September 2021.
Java 12 introduces some new features and enhancements to the language and the platform, such as:
Switch expressions: A new syntax for writing switch statements that can return values and use lambda-like syntax.
Teeing collectors: A new collector for streams that allows splitting a stream into two collectors and combining their results.
Compact number formatting: A new API for formatting numbers in a compact way, such as "1K" instead of "1000".
New methods in String class: Some new methods for manipulating strings, such as indent(), transform(), describeConstable(), and resolveConstantDesc().
JVM constants API: A new API for modeling nominal descriptions of key class-file and run-time artifacts.
Miscellaneous improvements: Some other improvements in performance, compatibility, security, garbage collection, etc.
If you want to try out these new features and enhancements, you will need to download and install Java 12 on your Windows system. Before you do that, you will need to check some prerequisites and system requirements.
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Check if Java Is Already Installed
Before you download and install Java 12, you should check if you already have Java installed on your system. This will help you avoid unnecessary downloads and installations, and also let you know if you need to update your existing Java version.
To check if Java is already installed on your Windows system, you can use the command prompt. Here are the steps to follow:
Open the command prompt by pressing the Windows key + R and typing cmd in the Run dialog box.
Type java -version and press Enter. This will display the current Java version installed on your system, if any.
If you see a message like "java version '12.0.1'", then you already have Java 12 installed and you don't need to download or install anything else.
If you see a message like "java version '11.0.4'", then you have an older version of Java installed and you might want to update it to Java 12.
If you see a message like "'java' is not recognized as an internal or external command, operable program or batch file.", then you don't have Java installed on your system and you will need to download and install it.
In this article, we will assume that you don't have Java installed on your system or you want to update it to Java 12. If that is the case, then you can proceed to the next section.
Download Java 12 for Windows
To download Java 12 for Windows, you will need to visit the Oracle Java Downloads page and choose the right installation file for your system. Here are the steps to follow:
Open your web browser and go to . This is the official page for downloading archived versions of Java Development Kit (JDK), which includes the JVM and other tools for developing Java applications.
Scroll down to the section that says "Java SE Development Kit 12.0.2". This is the latest update of Java 12 as of June 2021.
Under this section, find the file that matches your system architecture and operating system. For example, if you have a 64-bit Windows system, then you should choose the file that says "Windows x64 Installer".
Click on the file name to start downloading it. You might need to sign in with your Oracle account or create one if you don't have one already.
Read and accept the license agreement by clicking on the checkbox that says "I reviewed and accept the Oracle Technology Network License Agreement for Oracle Java SE".
Click on the Download button to continue downloading the file. Save it in a location where you can easily find it later.
Once the download is complete, you can proceed to install Java 12 on your Windows system.
Install Java 12 on Windows
To install Java 12 on Windows, you will need to run the downloaded file and follow the installation wizard steps. Here are the steps to follow:
Locate the downloaded file in your file explorer and double-click on it to run it. You might see a security warning asking if you want to run this file. Click on Run or Yes to continue.
The installation wizard will start and welcome you to the setup process. Click on Next to proceed.
The wizard will ask you to choose a destination folder for installing Java 12. You can either accept the default location or browse for a different one. Click on Next to continue.
The wizard will start installing Java 12 on your system. This might take a few minutes depending on your system speed and configuration.
Once the installation is complete, the wizard will show a message saying "Installation Completed". Click on Close to exit the wizard.
Congratulations! You have successfully installed Java 12 on your Windows system. Now, you need to set some environmental variables in Java to make it work properly.
Set Environmental Variables in Java
Environmental variables are settings that tell your system where to find certain files or programs. In order to use Java from any location on your system, you need to set some environmental variables in Java that point to the installation folder of Java 12 and the Java executable file.
To set environmental variables in Java, you need to follow these steps:
Open the Control Panel by clicking on the Start menu and typing Control Panel in the search box.
Click on System and Security, then click on System.
Click on Advanced system settings on the left side of the window. This will open the System Properties dialog box.
Click on the Advanced tab, then click on the Environment Variables button at the bottom of the dialog box. This will open the Environment Variables dialog box.
Under the System variables section, find the variable named Path and click on Edit. This will open the Edit environment variable dialog box.
Click on New and type the path to the bin folder of your Java 12 installation. For example, if you installed Java 12 in C:\Program Files\Java\jdk-12.0.2, then you should type C:\Program Files\Java\jdk-12.0.2\bin.
Click on OK to save the changes and close the dialog box.
Under the System variables section, click on New to create a new variable. This will open the New system variable dialog box.
Type JAVA_HOME as the variable name and the path to your Java 12 installation folder as the variable value. For example, if you installed Java 12 in C:\Program Files\Java\jdk-12.0.2, then you should type C:\Program Files\Java\jdk-12.0.2.
Click on OK to save the changes and close the dialog box.
Click on OK to close the Environment Variables dialog box and the System Properties dialog box.
You have successfully set the environmental variables in Java. Now, you can test your Java installation by writing and running a simple program.
Test the Java Installation
To test your Java installation, you can write a simple Java program that prints "Hello, World!" to the console and save it as a .java file. Then, you can use the command prompt to compile and run your program. Here are the steps to follow:
Open a text editor of your choice, such as Notepad or Notepad++.
Type the following code in your text editor:
public class HelloWorld public static void main(String[] args) System.out.println("Hello, World!");
Save your file as HelloWorld.java in a location where you can easily find it later.
Open the command prompt by pressing the Windows key + R and typing cmd in the Run dialog box.
Navigate to the folder where you saved your HelloWorld.java file by using the cd command. For example, if you saved your file in C:\Users\YourName\Documents, then you should type cd C:\Users\YourName\Documents.
Type javac HelloWorld.java and press Enter. This will compile your Java program and create a .class file named HelloWorld.class in the same folder.
Type java HelloWorld and press Enter. This will run your Java program and display "Hello, World!" on the console.
If you see "Hello, World!" on your console, then you have successfully tested your Java installation. You can now start writing and running more complex Java programs on your Windows system.
Conclusion
In this article, you learned how to download and install Java 12 on Windows. You also learned how to set environmental variables in Java and how to test your Java installation by writing and running a simple program.
Java 12 is a non-LTS version of Java that introduces some new features and enhancements to the language and the platform. If you want to try out these features and enhancements, you can download and install Java 12 on your Windows system by following this article.
If you have any questions or feedback about this article, feel free to leave a comment below or contact us through our website. We would love to hear from you!
FAQs
Here are some frequently asked questions and answers about downloading and installing Java 12 on Windows:
Q: How do I uninstall Java 12 from Windows?
A: To uninstall Java 12 from Windows, you can follow these steps:
Open the Control Panel by clicking on the Start menu and typing Control Panel in the search box.
Click on Programs, then click on Programs and Features.
Find the Java 12 entry in the list of installed programs and click on it.
Click on Uninstall and follow the instructions to remove Java 12 from your system.
Q: How do I update Java 12 to the latest version?
A: To update Java 12 to the latest version, you can follow these steps:
Open your web browser and go to .
Find the latest update of Java 12 under the section that says "Java SE Development Kit 12.0.x". For example, as of June 2021, the latest update is 12.0.2.
Download and install the update file for your system architecture and operating system, following the same steps as described in this article.
Restart your system to apply the changes.
Q: How do I switch between different versions of Java on Windows?
A: To switch between different versions of Java on Windows, you can use the JAVA_HOME environmental variable. Here are the steps to follow:
Open the Environment Variables dialog box by following the steps described in this article.
Under the System variables section, find the variable named JAVA_HOME and click on Edit.
Type the path to the installation folder of the Java version that you want to use as the variable value. For example, if you want to use Java 11, then you should type C:\Program Files\Java\jdk-11.0.11.
Click on OK to save the changes and close the dialog box.
Restart your system to apply the changes.
Q: How do I download and install Java 12 for other operating systems?
A: To download and install Java 12 for other operating systems, such as Linux or Mac OS, you can visit the Oracle Java Downloads page and choose the appropriate installation file for your system. Then, you can follow the instructions provided by Oracle for installing Java 12 on your system. You can find more information at .
Q: How do I learn more about Java 12 features and enhancements?
A: To learn more about Java 12 features and enhancements, you can visit the official Java documentation page at . There, you can find detailed information about the language syntax, the platform APIs, the tools, and the examples for using Java 12. 44f88ac181
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