Running java files on android

Is there an app that runs Java (.jar) files on Android?

Solution 1: Even though Android uses Java, it does not support executing jar files on Android devices. Features of Netmite App Runner : This is the most popular application to run Java apps and games (J2ME/MIDP – jar/jad) app on Android OS.

Is there an app that runs Java (.jar) files on Android?

I would like to run a .jar file on my Samsung Galaxy S5 Android phone.

I expect that it requires an app, but I can’t find such app anywhere.

What app would be great to emulate .JAR files, preferably without a .jar size limit?

Even though Android uses Java, it does not support executing jar files on Android devices. However, you can use emulators to do this which are not available on Google Play Store but are available from the developers’ website. I have provided the source link and download instructions are available there.

Features of phoneME :

• phoneME for Windows CE/Mobile and Android is an implementation of the phoneME open source J2ME application platform for your Windows Mobile phone or android handheld device.
• Each build includes the phoneME VM and an Android frontend wrapper with JNI bindings to the VM.
• Most powerful, smooth user experience, less crashes.
• jad files are also associated with the Foundation Profile-MIDP Android application. Therefore, you can also use your browser to select an online JAD file to download and run the midlet. If you click on a JAD download link, a popup menu will appear and you need to choose the Foundation Profile-MIDP Android application
• No root access required.

Features of Netmite App Runner :

• This is the most popular application to run Java apps and games (J2ME/MIDP – jar/jad) app on Android OS.
• This application has App Explorer, which helps to find existing Java apps and games on your phone/tablet device.
• It is integrated with Browser-Browse any j2me site, click to run any jad/JAR file.
• It can auto-convert J2ME into Android package (apk) on the fly.
• You can immediately port your existing Java apps (jar/jad) to Android WITHOUT source code.

Features JBED :

• JBED is also a very good Java/J2ME Emulator for Android.
• It is fast but has some issue like – screen got hazy on landscape mode, unexpected force close.
• It has built in app explorer.

Features JBlend :

• JBlend is very Similar to JBED and much better.
• It’s smooth and never crashes.
• Support most Java apps / games

Important! It’s possible that not all emulators will work for your devices. Each emulator has different features. You have the option to try different emulators, and decide which one you want to use.

Just create a Android project in IntellJ, NetBeans or Eclipse, add your jar to the libs directory and write your little Android GUI for it.

So, just to keep this updated with something that wasn’t supposed to run on 2.2.. And just because I think it’s a shame that tons of project went wasted because they weren’t open source

This is what I would recommend to try in 2019 (in no special order)

• phoneME (again, but it was tentatively fixed for newer OS versions)
• J2ME Loader (it seems the most actively supported and promising)
• MicroEmu (this should be more about converting applets into apks technically)
• SquirrelJME (AFAIK the dev should be in the process of wiring Android support)

Of course all of these are targeting the limited mobile J2ME, rather than the desktop J2SE (I wonder why nobody still thought to that)

How to add jar as library on Android Studio?, This example demonstrates how to add jar as a library on Android Studio. Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project. Step 3 − Add the following dependencies to File/Project Structure. Step 4 − Add the following code to …

What is android.jar ? What does it include?

I am a noob with android development. What is android.jar? I am referring to https://developer.android.com/guide/platform/?nav=true and trying to understand which layer it fits into. I heard conflicting opinions and am now really confused, considering my limited knowledge in Android. Thanks!

The first one is the android.jar in the computer. This is a JAR file. It is provided by gradle in the classpath. It contain the Android framework classes. It does not contain the Android framework code but only stubs for the type signatures, methods, types, etc. The android.jar JAR file is only used for the Java compiler before deployment on an Android device. It is not bundled with your application. By default, all calls to the provided Android.jar throw exceptions, this allows you to write tests that do not depend on any Android platform behavior.

Once you application is deployed on the device it will use the android.jar JAR file on the Android device ( The second one ). I couldn’t find any source that said android.jar is here. I think android.jar fit better in the «Java API Framework» layer.

It must be a executable external library, for example google’s gson.jar library for converting classes to serialized json string.

How to create jar for Android Library Project, 8 Answers. Sorted by: 81. This is the closest that you can get: Step #1: Create a regular Android library project, and get it working. Step #2: Copy that Android library project into another directory. Step #3: Create a JAR from the compiled Java classes from the original Android library project, and put that JAR …

How can I install .jar files on my Android?

I downloaded some 3D games, unzipped them and got .jar files. How can I use these in Android? I have a Galaxy S running 2.1.

Although Android uses java, it doesn’t support normal JAR files. Instead it uses an Android specific format called APK. The main difference is that Android does not use the normal Java Virtual Machine, but contains it’s own Dalvik Virtual Machine that’s optimized for Android.

I’d like to partially disagree with Ryan Conrad & Onik.

I have a Samsung Spica and it came pre-loaded with an app while it was running v1.6 and now running 2.1 (both official Samsung India versions) — called Java ME Apps.

I am running multiple Java apps (meant for non-Android phones) through it.

Both are JAR files and once run via the Java ME app, both run as expected.

So to sum up, there is a way to run JAR apps on Android. I do however, agree with everything else mentioned WRT APKs and Dalvik.

Android doesn’t actually even «use» java. The language that the code is written in is Java, but the android SDK takes the compiled bytecode and converts it in to the Dalvik bytecode.

So it is really a misconception that Android runs java. Android runs Dalvik, which the core libraries are based on the Java framework, but the end resulting binary files are not the same, and the virtual machines are also completely different.

Just like the Dalvik VM will not run Java bytecode, the Java VM will not run Dalvik bytecode.

Converting libraries to Dalvik is probably possible, if all the features are available in Android (or additional libraries), but anything that has a Java UI, will not work.

If the jar file is for JavaME

There is MicroEmulator which emulates javamE with help from JavaSE. This makes it possible to convert these jar files to an apk and install it on your device. The process is described here.

NetRunner provides a similar functionality.

Binding a .JAR, This walkthrough provides step-by-step instructions for creating a Xamarin.Android Java Bindings Library from an Android .JAR file. Overview. The Android community offers many Java libraries that you may want to use in your app. These Java libraries are often packaged in .JAR (Java Archive) format, but …

How to run .jar in Android and see the results in Android

How can I Run a .jar file in Java so that I can see the results? I this I will need to use android studio but I have no idea on how to do it. Please help.

To use class and method in .jar library file in android you have to use it as a module.To do this follow below steps

1. copy .jar file
2. navigate to android studio «project» folder
3. paste copied .jar to libs folder

Android uses ART not JRE. So it can’t run .jar files.

It is possible to run jar files in Android. But the problem is, it’s possible using command execution and Root is needed to do that. A perfect example is this Apktool (Android) with Source Code

JarFile | Android Developers, AlarmClock; BlockedNumberContract; BlockedNumberContract.BlockedNumbers; Browser; CalendarContract; CalendarContract.Attendees; CalendarContract.CalendarAlerts

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Is there an app that runs Java (.jar) files on Android?

I would like to run a .jar file on my Samsung Galaxy S5 Android phone. I expect that it requires an app, but I can’t find such app anywhere. What app would be great to emulate .jar files, preferably without a .jar size limit?

3 Answers 3

Even though Android uses Java, it does not support executing JAR files on Android devices. However, you can use emulators to do this which are not available on Google Play Store but are available from the developers’ website. I have provided the source link and download instructions are available there.

Features of phoneME:

• phoneME for Windows CE/Mobile and Android is an implementation of the phoneME open source J2ME application platform for your Windows Mobile phone or Android handheld device.
• Each build includes the phoneME VM and an Android frontend wrapper with JNI bindings to the VM.
• Most powerful, smooth user experience, less crashes.
• JAD files are also associated with the Foundation Profile-MIDP Android application. Therefore, you can also use your browser to select an online JAD file to download and run the midlet. If you click on a JAD download link, a popup menu will appear and you need to choose the Foundation Profile-MIDP Android application
• No root access required.

Features of Netmite App Runner:

• This is the most popular application to run Java apps and games (J2ME/MIDP – jar/jad) app on Android OS.
• This application has App Explorer, which helps to find existing Java apps and games on your phone/tablet device.
• It is integrated with Browser-Browse any j2me site, click to run any jad/jar file.
• It can auto-convert J2ME into Android package (apk) on the fly.
• You can immediately port your existing Java apps (jar/jad) to Android WITHOUT source code.

Features JBED:

• JBED is also a very good Java/J2ME Emulator for Android.
• It is fast but has some issue like – screen got hazy on landscape mode, unexpected force close.
• It has built in app explorer.

Features JBlend:

• JBlend is very Similar to JBED and much better.
• It’s smooth and never crashes.
• Support most Java apps / games

Important! It’s possible that not all emulators will work for your devices. Each emulator has different features. You have the option to try different emulators, and decide which one you want to use.

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How to run Java Program on Android? (Simple Method)

Java is a popular programming language and taught in schools and colleges to students. If you’re a student or working professional who wants to run Java Program on Android, you need to follow this tutorial.

In this tutorial, I will be explaining the methods to run Java Program on Android. So, stick with the tutorial and follow each and every step carefully.

How to Run Java Program on Android?

To run Java Program on Android, follow the steps mentioned below:

Step 1: Launch Play Store on your Android phone

To begin with, you need to launch the Play Store app on your Android phone. Open your Android app drawer and search for Play Store. Now, click on the Play Store app icon to launch the Play Store on your Android phone.

Step 2: Search for JvDroid app on Play Store

After launching the Play Store app, you need to click on the Search bar. In the search bar, enter JvDroid and search. From the search results open the first result.

Step 3: Install JvDroid app on Android Phone

After opening the first result from the search results on Play Store, you need to Install the JvDroid app.

Step 4: Launch the JvDroid app on Android Phone

Once you’re done installing the JvDroid app on Android Phone, you need to click the Open button to launch the JvDroid App.

Step 5: Write Java Program and Click Run to Run Java Program on Android

After you open the JvDroid app on your Android phone, you need to write the Java Program. You will get a decent code editor with a Run button at the top. You need to click the Run button to Run Java Program on Android with the JvDroid app.

Conclusion

JvDroid is a very useful Android app to run your Java programs on Android. You can use it to write and run simple Java programs. But, you cannot run advanced Java programs and add install additional libraries.

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