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This article was co-written by Chiara Corsaro. Chiara Corsaro is a General Manager and Apple Certified Mac & iOS Technician working for macVpks, an Apple Authorized Service Provider in the San Francisco Bay Area. macVpks was founded in 1990, is A+ certified by the Business Improvement Board (BBB), and is a member of the Apple Consultants Network (ACN).
This article has been viewed 19,902 times.
This wikiHow teaches you how to open and run a workable JAR file on your Windows or Mac computer. A JAR (Java Archive) file contains data that can be used with a Java program. Most JAR files are simply a means of containing data that other programs need to run Java; so you can’t run these files and nothing happens when you double click them. Similarly, most possible JAR files are downloaded as an installation file for the purpose of installing applications or programs. Therefore, if you have problems opening the file, you should double check that your JAR file is compatible with the operating system.
Steps
On Windows
- You may have to restart your computer for Java to be fully loaded.
- A window may pop up asking which program you want to use to open the file. Once there, click Java(TM) and then select OK .
- For example, many JAR files in the program’s data directory are not viable files.
- If you’ve downloaded a JAR file from the internet, make sure you click on the correct Windows version and not the Mac version.
- Open Start
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- Scroll down and click on the Java folder.
- Click Check For Updates .
- Click Update Now on the Update tab.
On Mac
- While installing a non-Apple file on your Mac, you must click OK in the warning first, then click the Apple menu , then click System Preferences , click Security & Privacy ( Security & Privacy), unlock the menu, click Open Anyway located next to the file name, then click Open in the prompt before installing the file.
- For example, multiple JAR files in a program data directory are not viable files.
- If you downloaded the JAR file from the internet, you need to make sure you downloaded the Mac version and not the other operating system version.
- Open Apple menu
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- Click System Preferences .
- Click Java .
- Click the Update tab.
- Click Update Now .
Advice
- Java programs work on any platform. If there’s a program that doesn’t work, it’s either not coded properly, or it’s a very intensive program (system resources or other programs).
- A .jar file can be a program or a library. If it is a library, then there is no executable class inside the file, so it cannot run.
Warning
- Java is more secure than most programming languages, but malware written in Java still exists. You should be cautious when running JAR files downloaded from the internet.
This article was co-written by Chiara Corsaro. Chiara Corsaro is a General Manager and Apple Certified Mac & iOS Technician working for macVpks, an Apple Authorized Service Provider in the San Francisco Bay Area. macVpks was founded in 1990, is A+ certified by the Business Improvement Board (BBB), and is a member of the Apple Consultants Network (ACN).
This article has been viewed 19,902 times.
This wikiHow teaches you how to open and run a workable JAR file on your Windows or Mac computer. A JAR (Java Archive) file contains data that can be used with a Java program. Most JAR files are simply a means of containing data that other programs need to run Java; so you can’t run these files and nothing happens when you double click them. Similarly, most possible JAR files are downloaded as an installation file for the purpose of installing applications or programs. Therefore, if you have problems opening the file, you should double check that your JAR file is compatible with the operating system.
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