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.JAR File Extension What are these types of files and how to open them?

UPDATED ✅ Do you want to know which are the best programs and applications to open .JAR files on your computer and smartphone? ⭐ ENTER HERE ⭐ and discover how to do it ✅ EASY and FAST ✅

Having problems with file extension .JAR? Don’t know what to do to view the content you downloaded? In this article we will show you the .JAR file extension so you know what they are and how to open this type of file?

Certainly a digital file as this was not designed so that any application could open it, files with .JAR extensions out of the blue they are extensionsdata files and communication.

Below you will have all the information you need so you can use this extension, you will know from what it is and what it is used for, to how to open this type of file on cell phones and computers. We will even show you a list of applications with which you can open the files.

What is it and what are files with the .JAR extension used for?

files with extension .JAR

A .JAR file also called .JRE is a Java Archive extension that can be seamlessly integrated with the Oracle code base. Per se uses the stored reference data as an internal library of applications or programs with Java development, ready to exercise its functionality on platforms that have enabled the Java Runtime Environment.

Files with Java extension may contain encrypted codes for initial development in the execution of a program stipulated by the source software. In addition, also They can be enabled to be used on platforms from Android phones, iPhones, tablets, desktops or laptops, all this thanks to Java Runtime Environment.

You can opt for resources that include an optional device in a file handled with a .JAR extension. These are not the only ones with the ability to support this file, since there are also web browsers capable of supporting the execution environment due to the integration of programs in them, thanks to these advances you can now access data stored in these .JAR files.

Before the .JAR file extensions were acquired by Oraclethe original developer was Sun Microsystems. Evolution was what led this program to become a virtual machine, known today as Java Runtime Environment.

How to open and run .JAR files on Smartphone or computers?

Today you can run these files on any device, be it from your computer or cell phone. There are no more limitations to expand our greedy desires with .JAR extensions, and I will show you how to access it from a Windows PC on Mac computers, on Android phones and on iOS iPhone.

On Windows PCs

Opening and running a .JAR file on Windows is a relatively easy process. Although not all applications can perform this task, in this operating system there is a way to do it fast.

  • To access a .JAR file you need install Java on your computer. Download it in its entirety for free by simply pressing the download button. “Download”.

Download-Java

  • When the download is complete, proceed with the installation. Follow the steps they recommend as you go.
  • Restart your computer to finish the installation, and so proceed with accessing a JAR file
  • Once Java is installed, go to the file you want to open with a .JAR extension. Double click, and if the procedure is successful, it should open.

When the file doesn’t open right away, it’s because it needs certain assertions. A window will open asking you what program you want to use to open the file, you will click on the option that says JAVA (TM); Then in “To accept” Y “Continue”. By doing that you should be able to open the executable.

Otherwise, keep the following considerations in mind:

  • Make sure the JAR files you download are executable. Many times we download programs that are not compatible with us, so they will not open.
  • If the file still doesn’t open, try updating java. Most likely you have downloaded an old version.

If after making sure of all this the file still does not run, there may have been an error in the Java installation, so you will have to uninstall it and go through the software download process again.

On Mac computers

On MacOS computers it is also very easy to run a file with a .JAR extension, since you can also use Java TM in it.

The steps are very similar to the previous ones, you just have to:

  • The first thing you should do is install Java on your computer. Access your page java.com online and download it in its entirety for free.

Download-Java

Apple will always try to protect its users from something that does not come from its brandso you should “To accept” after the download in the warning that your computer will give you.

To continue the installation follow these steps:

  • It will ask you if you want to open with a warning. Click on the option “Open the same way” to install the file.
  • When the download is complete, proceed with the installation. Follow the steps that the wizard will indicate and you will complete the process in a very short time.

java-installation-wizard

  • Restart your computer to finish the installation. Once complete, you can easily run your JAR file.
  • Once Java is installed, go to the file you want to open with the java extension, double click and if the procedure is successful, it should open.

The file may not open immediately as Java does not recognize it as yours automatically. Therefore you should set this program as default to run JAR files. For this you simply have to right click on the executable file and click on “Open”, after that you will see a list of software that you can choose to run it. Select Java and “To accept” for it to open.

If after all this the .JAR still cannot be executed, you should take into account the following factors that may be influencing it:

  • You must make sure to see the file downloaded in a Mac version. EThis may be a cause of the file not opening.
  • You may have installed an old version of Java softwareso you will have to update it to be able to open the file if necessary.
  • Make sure the JAR file is executable. This usually happens because users think that all files with this extension are, but the reality is that there are different types of these and not all of them can be executed, but rather they are libraries with information.

On Android mobile phones

JAR files are perfectly executable on Android devices, but for this it must be directly related to one of the applications installed on it. This way the file will be executed with the corresponding application.

The steps to perform are the following:

  • The procedure is extremely simple. start with connect your Android phone to your computer via USB cable.
  • Now create a folder called “JAR” in the files that make up your mobile and you will have to move the file you want to run to it.
  • To continue with the procedure, disconnect from the PC and navigate on your cell phone to the folder where you saved the files JAR Y select the option to install and run the JAR files you want.

On iPhone devices with iOS

Apple mobile devices do not have factory support for JAVA, so you will have to install it using Cydiawhich allows you to install apps outside of the Apple Store.

What you should do is the following:

Download Cydia for iPhone

  • Open the Cydia app on your iPhone and in the section of “Categories” Choose “JAVA”.
  • In this folder you will see a series of apps from this developer. You must select the one that says “iPhone/Java”.

iphone-java-install

  • You will see a message with information about the size of the app, you must click on “Confirm” for it to install.
  • Then you should go back to the Java category and install another app called jikes“, and proceed to restart your mobile.

When the iPhone turns back on, you should have the app available on the desktop, so you can open it to run any JAR file on your Apple phone.

List of the best applications and alternative programs to run a document with a .Jar extension

To finish, we present a list of applications and alternative programs to JAVA that they can run files with the .JAR extension easily.

  • JAD Maker: It is an application that you can use to install JAR files from your cell phone, it works as an alternative if the original program does not work.
  • JAR2Exe: is an assistant JAR to EXE file converter for those who have had a hard time viewing their JAR extension files.
  • DOKRY: It is a page that works with computers for Windows users, the intention with this is not to download anything to view the file but to view it online.

You are now ready to view all the JAR files you want, don’t waste any more time exploring with the new features of the files you like the most. Seeing a .JAR file is no longer a limitation.

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