Kronos is a system that requires Java. Occasionally you may run into error messages regarding the Java in your system. This guide will show you the next steps you should take if you receive an error message stating the 'Java plug-in is not installed'
For the Edge browser it might well be that Java is not available - Edge is just far from feature complete. Java however is in fact working nicely on Windows 10. If all you need to run that program is Java, then it should be working on Windows 10. If you are unable to install/upgrade to the latest Java version, and you trust the unsigned Java applet to be safe, you can workaround this problem by adding an 'exception site' or temporarily lowering the security level of the currently installed Java: For Microsoft Windows.
Note: the Java plug-in is entirely disabled within Google Chrome, so if you are trying to use Chrome and getting an error, the first step would be to switch to Firefox, Internet Explorer, or Safari.
- Open the Firefox browser or restart it, if it is already running
- From the Firefox menu, select Tools, then click the Add-ons option
- In the Add-ons Manager window, select Plugins
- Click Java (TM) Platform plugin (Windows) or Java Applet Plug-in (Mac OS X) to select it
- Check that the option selected is Ask to Activate or Always Activate or on older Firefox versions, click on the Enable button (if the button says Disable, Java is already enabled)
- When Firefox is open, click on the Firefox tab in to top left of your screen.
- Click Preferences.
- Click Content.
- In the Content options, ensure that Enable Java and Enable JavaScript are checked.
- Click on the Safari tab in the upper left of your screen, and select Preferences.
- Choose the Security option.
- Select Allow Plug-ins, then click on Manage Website Settings.
- Click on the Java item, select an option (Ask, Allow or Allow Always) from the pulldown list When visiting other websites.
- Click Done, then close the Safari Preferences window.
- Click Tools(Gear symbol in the upper right hand corner of the browser) and then click Internet Options.
- Select the Security tab, and select the Custom Level button.
- Scroll down to Scripting of Java applets.
- Make sure the Enable radio button is checked.
- Click OK to save your preference.
Table of Contents [Show]
In this short tutorial, we’re going to take a close look at how to install Java on Windows 10.
We’ll first start with a little insight into how to download Java. Then, we’ll explain how to install it on Windows 10. Then, we’re going to see how to properly set JAVA_HOME environment variable.
Lastly, we’ll highlight different ways to check Java and JDK versions on Windows 10.
So, let’s get started
Download Java for Windows 10
In this section, we’re going to cover in-depth all the steps required to download Java for Windows 10.
As a matter of fact, downloading Java is a piece of cake. It’s just a matter of a few clicks and simple one-time steps.
First, we need to visit the official Oracle download page and choose the right release for the Java SE Platform.
At this point in time, the latest version is Java SE 16.0.1.
Secondarily, we need to click on the JDK Download button:
Bear in mind that Oracle has dropped the support for 32 bit systems. As a result, we can use Java SE only in 64 bit machines.
For instance, Oracle offers two options to install Java on Windows: through a .zip file and a .exe executable file.
Next up, let’s choose the Windows x64 Installer option:
Then, we have to accept the Oracle Technology Network License Agreement for Oracle Java SE to proceed to the next step:
Lastly, a simple click on the download button will do the job.
Easy, right?
Install Java on Windows 10
Now that we download Java for Windows 10, let’s see how to install it. Basically, the process of installing Java on Windows 10 is pretty easy and simple.
In general, we don’t need to change anything during the installation, we can go with the default settings and follow the suggested instructions.
Firstly, we need to double click on the downloaded installer file to start the installation process:
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Secondarily, we click Next to continue:
Note that, “C:Program FilesJava” is the default Java installation folder! However, we can always change it if we want that.
Then, we keep hitting Next until the installation is complete:
Finally, we close the installer window once the installation of JDK is complete on our Windows 10.
Set Java Path in Windows 10
Now that we known how to install Java on Windows 10, it’s time to proceed to the next step.
In this short chapter, we’re going to dive deep into how to set JAVA_HOME environment variable on Windows 10. Please note that, JAVA_HOME should point to a JDK folder not JRE.
The basic idea behind setting the Java Path is to make all the Java commands like java, javac… accessible from everywhere. That way, we can run Java programs from anywhere.
First, let’s open the Advanced System Settings. To do that, we just need to press Windows key + Pause Key. Alternatively, we can type View advanced system settings in the search box.
Once the System Properties window is opened, we click on Environment Variables:
Secondarily, we click on New button to create a new System variable with JAVA_HOME as name and the path to the JDK directory as value:
As we can see, the JAVA_HOME environment variable points to the JDK folder which C:Program FilesJavajdk-16.0.1 is in our case.
Next, we need to update the Path variable by adding a new entry for %JAVA_HOMEbin%:
Finally, we can click OK to save and apply the changes.
That’s all we can say about downloading and installing java on windows 10. Now, we’re ready to write our first Java program.
Check Java Version on Windows 10
There are multiple ways that we can use to check Java version on Windows 10. Basically, when we say Java version, we mean JRE version.
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The most obvious and basic way is to use the terminal. Firstly, press Win+R and type cmd to open the Command Prompt. After that, type java -version and press Enter:
The output means that Java is properly installed on our operating system.
Alternatively, we can type “Java” in the search box and click on “About Java”:
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Please bear in mind that multiple versions of JDK can be installed on the same on Windows 10 machine. So, it’s important to make sure the JAVA_HOME environment variable points to the right JDK release.
Let’s open a new command prompt and type:
As show above, the environment variable JAVA_HOME points to the directory of the lastest JDK version.
We can also use javac -version to verify the version of the installed JDK:
Another important thing to note is that the JDK version can be different from the JRE version on the same machine.
Please keep in mind that we need always to check for new Java updates and install them to keep our machines up-to-date with the latest releases.
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In case you want to check how to enable Java on Chrome and other browsers, feel free to take a look at this article: https://devwithus.com/enable-java-chrome/
Conclusion
In this article, we’ve explained how to tackle the challenge of downloading and installing Java on Windows 10. Then, we’ve seen how to add JAVA_HOME and append %JAVA_HOMEbin% to the Path.
Lastly, we have showcased how to verify and check the installed Java version.
Thanks for reading. Have a nice day!