How do I get Java to run on Windows 10?

I am trying to use a website for a job. I am getting these errors.

Oracle recommends that users download the latest version of their Java Virtual Machine, by clicking here . Please follow the prompts to install Java for free on your machine. If you are not comfortable completing the installation on your own, you may wish to contact a member of your company’s Computer Support division for help.

While our system has been tested to support Java version 1.4.2 or higher, your browser may prompt security warnings if your version is below a certain update. If you don’t want to update your version and still wish to take assessments, you will need to choose to allow Java to run, despite the security warnings.

You can access Oracle’s Java Virtual Machine by clicking here . Please follow the prompts to install Java for free on your machine. If you are not comfortable completing the installation on your own, you may wish to ask a member of your company’s Computer Support division for help. After the installation is complete, please reboot your computer and log back into your testing site by following the instructions provided to you. If you have already installed Java 1.4.2 or higher and are still receiving this message, it may need to be enabled.

I follow through, downloaded, restarted, went through internet options and made sure everything was enabled. And still it won’t work. I also went to java page to check to see if the script is running and it is not.

How to run a JAR file on Windows 10 [QUICK GUIDE]

• To run a JAR file on your Windows 10 device you certainly need to have Jave installed.
• You’ll find below a path to the latest Java version in case you need it.
• Then, you can find JAR file openers or executors, and we recommend some.
• Using Command Prompt is also a handy solution if you don’t want to install third-party tools.

A JAR file is a Java archive package format that might include a Java program within it. While you can extract JARs with archive software such as 7zip, you can’t run a pure Java JAR app as you would with other programs in Windows.

Since that’s the case, we’ll cover how you can run a pure Java app JAR file in Windows.

How can I run a JAR file on Windows 10?

1. Add Java to Windows

The crucial thing you need upfront is to have Java installed. Without it, Java apps aren’t going to run in Windows. This is how you can install or update Java in Windows 10:

• First, open Command Prompt(Admin) by pressing the Win key + R keyboard combination and entering cmd in the box.
• Next, input java -version in the Command Prompt and press Enter. It will then provide further details on your Java version as below.

• The current version of Java is Version 8 Update 131. If you don’t have Java or the most up-to-date version, you can add it for free.
• Run through the Java setup wizard. Then, open your browser to verify that the program is working.

2. Download a JAR file opener

You can open JAR files and hundreds of different formats with a single application. File Viewer Plus is a universal file viewer for Windows that can open and display over 300 different file types.

The new updated version has a plethora of features that will save you big time on opening, viewing, or editing files.

File Viewer Plus supports the most popular text, audio or video file type, as well as archive, source code or web files.

File Viewer Plus

3. Use Java(TM) Platform SE binary

1. Open the File Explorer and the folder that includes the file you need to run.
2. You should right-click the JAR file and select Open with from the context menu.
3. Click Choose another app and then select to open it with Java(TM) Platform SE binary.
4. Click the Always use this app to open JAR files check box.
5. Press the OK button to close the menu.
6. Now you can run the selected JAR, and all other JARfiles will also be associated with Java.

4. Run a JAR file from the Windows Command Prompt

1. Press the Win key + X hotkey and select Command Prompt (Admin) to open it as administrator.
2. Then input the following command (replacing the example with the actual path of the file you need to run) and press Enter: java -jar c:pathtojarfile.jar
3. Alternatively, you can open the folder that includes the JAR in the Command Prompt first by entering cd / followed by the directory. Then, you can input java -jar file.jar without the folder path.

That will open the executable JAR file so long as it contains a manifest file to specify the application’s entry point. (The developers should have already included that in the archive.)

If you develop your own Java programs, you’ll need to convert the JAR to an executable format.

5. Add a third-party JAR executor to Windows

There are also executor programs for Windows that enable you to run JAR files the same as any other program . Jarx is one of them and you can add it to Windows by clicking Jarx-1.2-installer.exe on this page.

Click the jarx .exe to run the software, which doesn’t really have a GUI as such (except an About jarx window). Then you can double-click the JAR files to run them in Windows.

If you’re having trouble accessing the JAR file or you get some kind of an error, take a look at this nifty guide to finding some great fixes.

With all this, you can now run JAR files in Windows. If you need to fix a JAR file that isn’t opening, check out this Windows Report guide.

If you have any other suggestions or questions, leave them in the comments section below and we’ll be sure to take a look.

How to open or run a JAR file on Windows

JAR files are like EXE files except that they need a Java framework to run. Imagine them as EXE files on Windows which you can double click to launch the program. When you run an EXE file, it uses Windows OS support. Similarly, when you run JAR files, you need the help of Java Framework to open. When we say open JAR file, we are not opening the file like an archive file, but we are executing it. In this post, I will share how to open or run a JAR file on Windows 10.

While Archiver tools like 7-Zip can extract content from JAR files, but doing that is pointless – we need to execute the files just as we run the EXE files.

How to run a JAR file in Windows 10

Since Java files can’t run on Windows on its own, you need to install the Java Framework or what is popularly called as Java. That said, Java files can be dependent on a particular version of Java. You will need to take care of that as well.

1. Download and install Java.
2. Set System path
3. Run the JAVA file
4. Set Java file association.

1] Download and install Java Framework

To run a JAR file on Windows, you need to install Java on your system. Go to Java Download Page, and install it. The default will install the latest version only. However, if your JAR file needs a different version of Java, you can download it from here.

Sometimes, an existing older version of Java can cause an issue. So, if you are facing such a problem, make sure to remove the older version first. Use the official Java Remover tool to get rid of it. Then install the latest version.

2] Set System Path for Java

Next, you need to set the JAVA_HOME path. It makes sure that any JAVA file you run can find the necessary libraries for the program. You can also use the command line to echo the Java path to figure out if it is correct.

3] Run a Java or JAR file

Now when you double click on the JAR file, it will automatically run like how EXE files execute. If there is a problem with version, the file should inform you.

If you have a JAR file which is not running on its own, then you can use java JDK to run it. Open Command Prompt, and type java -jar name_of_jar_file.jar. It will execute the JAR file automatically.

4] Set the Java or JAR file association

The last step is to establish a file association with Java run time. It will make sure that every time you run, you are not asked to select a program which can execute it.

1. Shift + Right-click on the file, and select Open with option.
2. Select ‘Choose another app.’
3. If Java(TM) Platform SE binary is not in your list, scroll, and then click on More Apps.
4. And then choose Select app from the computer.
5. You should see ‘Java(TM) Platform SE binary’ listed in this context menu but don’t select it.
6. Locate the file which can run the JAVA or JAR file which is available in the path we suggested above.
7. Make sure to check the box which says, “Always use this program.”

Once done, all future JAR files will automatically open with Java run time library. You should see the Java icon for all of these files.

We hope these tips where easy to understand, and were of help to open or run a Java file on Windows 10.

“Javac” doesn’t work correctly on Windows 10

the problem is that I upgraded to Windows 10 and now I’m installing my tools to programming and now that I installed the JDK 7 of Java, when I try to use in the cmd the command: — «javac»

The result of this is: «javac» is not recognized as an internal or external command.

But I was edited the PATH with the correct link of jdk, because when I use «java», it is ok.

Now, I tried in the console with this command: PATH=%PATH%;»C:\Program Files\Java\jdk1.7.0_79\bin»

And when I executed the command «javac» it works, but now, when I open other console, it doesn’t work, or when I restart the console, this command is not recognized.

What could be the problem?

21 Answers 21

java is part of the JRE, not the JDK.

You need to add the JDK bin to the system PATH, in

«Control Panel» | System | Advanced | «Environment Variables»

Her’s how I configure System variable on Windows 10 :

I am totally new to java and spent hours trying to get the problems with PATH and CLASSPATH worked out. There was one person who said to restart the command prompt after you modify the environment variables; that was it for me. While you are testing different configurations, make sure to relaunch the command prompt before testing. It seems like there are at least 2 different ways of setting this up. I went with the following:

1) In System Variables, add

JAVA_HOME = c:\program files (x86)\java\jdk1.8.0_121

2) In System Variables, add the following to existing Path.

That’s it. No need for quotes around anything. No double forward slashes or anything else. I think it would also work if I removed the java_home variable and just listed the explicit path to bin in the PATH variable, but I’m not touching it again now that it finally works.

After adding C:\Program Files\Java\jdk1.8.0_73\bin to the system variables I turned off my command prompt and opened another one. Then it worked.

Maybe a bit late, but i had same problem.

Click on «Move up» button for Java path and move it at top.

It fixed problem for me

just add C:\Program Files\Java\jdk1.7.0_80\bin as the path in environmental variables. no need to add java.exe and javac.exe to that path. IT WORKS

I added below Path in environment variable

;%JAVA_HOME%/bin instead of %JAVA_HOME%\bin

in my case , it fix the problem

I had the same issue on Windows 10 — the java -version command was working but javac -version was not. There are three things I did:

(1) I downloaded the latest jdk (not the jre) and installed it. Then, I added the jdk/bin path tan o environment variable. In my case, it was C:\Program Files\Java\jdk-10\bin . I did not need to add the ; for Windows 10.

(2) Move this path to the top of all the other paths.

(3) Delete any other Java paths that might exist.

Test the java -version and javac -version commands again. Voila!

For some reason it worked for me to add quotation marks to the path folder on windows 10. not C:\Program Files\Java\jdk 1.8.0_111\bin, but «C:\Program Files\Java\jdk 1.8.0_111\bin».

now i got it finally! make sure that there are no spaces before and after the path and put the semi-colon on both sides without spaces

The PATH is for current user, instead you can add a CLASSPATH and below link would help you more PATH and CLASSPATH

I added below Path in environment variable

and then compiled the program but got the error then I restarted the system and again compiled the program

This time it worked 🙂

Add java path to environment variables and move it to the top of all the paths available there. It worked for me.

To be sure about your path, you can use double quotes » to locate the path or if you are in Windows, you can browse to path to select «C:\Program Files\Java\jdk1.8.0_121\bin» folder.

in the search window type ‘environment variables’ this should give you a link to editing the variables. On the variables editing page there is an upper section and a lower section in the lower section add NEW,type path C:\Program Files\Java\jdk-10\bin this worked great for me and it finds the compiler all the time.

Kind of beating a dead horse now but, I want to clarify one thing that may not be quite so obvious. Yes indeed you need to edit the PATH environment variable as already stated many times. The key for me was to edit the PATH under SYSTEM variables. I had inadvertently edited the PATH under USER variables. Why did this matter? On my machine I have to log in as an Administrator to edit environment variables. So editing the User variables was not helping because I run the command prompt under my login (non-admin) account. Grrr!

Also, I found that closing the command prompt window, and re-opening it after the PATH variable update was required. Changing the order of the values, adding semi-colons, etc. didn’t make a difference for me.

If you have set all PATH variables correctly after installation, just restart it.

I had the same problem, I had also installed new Windows7 OS then I upgraded it to Win 10. Then i started setup necessary tools like IntelliJ, Java jdk,jre, eclipse so on. In cmd, java -version worked but javac compiler got unrecognized. I checked and all good, the files in the folders, path are correct and so on.

I restarted and checked it again in cmd ,it worked.

I typed ; accidentally in front in the path variable and then hit OK , after this if I again edit it was nowhere going to the same page as earlier, it opened a new page as defined for user variables and then I was able to remove double quotes in front of the PATH VARIABLE. Everything worked fine then. 🙂

Did it just now.

in A dvanced system setting . Then Choose Environment Variable.

for windows 10 Users Use Java path( JDK Bin location) AS «C:\Program Files\Java\jdk-9.0.1\bin» it will work.

Points to remember, do as the image shows. Move the highlighted bar up using move up button, this will help.

Not the answer you’re looking for? Browse other questions tagged java windows java-7 javac windows-10 or ask your own question.

Linked

Related

Hot Network Questions

Subscribe to RSS

To subscribe to this RSS feed, copy and paste this URL into your RSS reader.

site design / logo © 2021 Stack Exchange Inc; user contributions licensed under cc by-sa. rev 2021.4.16.39093

By clicking “Accept all cookies”, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy.