Java ME is the best technology for resource constrained embedded devices and has seen widespread deployment across mobile handsets and digital television devices. Java ME provides device manufacturers with the full power of the Java language, a comprehensive set of APIs, industry-leading security and access to more developers than any other platform. An extensive range of tools, such as the NetBeans IDE, provides sophisticated power for creating and debugging applications. At the same time, the Oracle Java Micro Edition Embedded Client capitalizes on its Java ME heritage by being specially designed for speed and efficiency on devices with limited processing power and memory. A configuration provides the most basic set of libraries and virtual-machine features that must be present in each implementation of a J2ME environment.

The flexibility of the Java Platform coupled with and established developer base enables you to develop secure, innovative products while achieving enhanced cost savings and time to market advantage. A vital platform that offers industry-leading reliability, performance, throughput, security, and cross-platform support. The Foundation Profile is a Java ME Connected Device Configuration profile. This specification was developed under the Java Community Process. Oracle has provided a technote and shell script for building Javadoc API reference bundles for the various API components required for BD-J application development.

It is a collaborative effort by many individuals and companies with the goal of producing a modern, efficient, and fully featured toolkit for developing rich client applications. The Java ME Software Development Kit provides device emulation, a standalone development environment and a set of utilities for rapid development of Java ME applications. Oracle Java ME Embedded Client enables you to develop highly functional, reliable, and portable applications for today’s most powerful embedded systems.

Create beautiful user interfaces and turn your design into an interactive prototype. Scene Builder closes the gap between designers and developers by creating user interfaces which can be directly used in a JavaFX application. These build.gradle settings configure our gradle project to use the javafxmobile plugin, which is the work horse of our project. Among many things, the javafxmobile plugin automates the process of downloading and adding the iOS and Android SDKs to your application’s classpath.


The compilation process for iOS is very resource-heavy, as the plugin will compile the entire openJDK and other libraries twice to create a fat JAR that it will use to build your application. Therefore, you should preemptively create a RAM disk to accommodate for the memory requirements. Notice that we created directories for embedded and desktop. We will produce a desktop build, because it takes no additional work to do so. However, we will not produce any builds for embedded devices. Second, run gradle init in the project’s root directory to initialize the gradle repository.

Jsrs Java Specification Requests

You may need to contact your cellular service provider to enable installing apps on your phone. On iOS, however, the builds are extremely memory-intensive and the compilation process takes a very long time. The following is a snippet of the log for ./gradlew createIpa task. To build your application, execute the gradle wrapper in the root directory from the terminal as follows.

Needs to review the security of your connection before proceeding. Unexported symbols have no effect on the cross-language interface, and as such are not restricted. Gobind generates language bindings that make it possible to call Go functions from Java and Objective-C. Stable version When a project reaches major version v1 it is considered stable. Tagged version Modules with tagged versions give importers more predictable builds.

The Go package you choose to bind defines a cross-language interface. ItStillWorks provides the latest news in the tech world. From fixing your old devices to catching up on recent tech-trends, we’ve got you covered. Before joining Demand Studios, he often wrote technical documents as a part of his software consulting work and contributed to community forums covering a wide variety of technical topics. Most phones produced within the last few years support J2ME unless they run Windows Mobile, Android, or iOS. To see if your specific phone supports J2ME, look in the phone’s manual (if you’ve lost the hard copy, you can probably find it on the manufacturer’s website).

  • JavaFX is an open source, next generation client application platform for desktop, mobile and embedded systems built on Java.
  • The thing is that in big countries like the USA And the UK, iOS and Android platforms are used by people in roughly equal numbers.
  • Notice that in /bin there are scripts to execute the application.
  • This project will be a Git repository built with gradle.
  • For this reason, iOSSkipSigning is set to true and we do not make use of the releaseAndroid gradle task.
  • If either pass a language boundary, the program will exit.
  • Oracle Java ME Embedded 8 Qualcomm IoE (ARM9/Brew MP)is available as GA binaries, ready to install and run for development/evaluation purposes.

You can also browse apps at a variety of sites, such as and As always, make sure you trust the source of the software before installing it. Although J2ME is designed to keep your phone safe from malicious apps, no computer security is perfect. Javafxports is a promising project that aims to bring JavaFX and the Java SE platform onto mobile and other devices. Also note that the underlying compiler (MobiDevelop’s fork of RoboVM) does not fully support all Java 8 APIs.

Community Documentation

Also notice that is not necessary for you to have tree installed. Keep in mind that although you can share source code, you should include custom edits in each copy of the source, should you want to make device specific changes. Take careful notice that the SDK and API version we have specified in correspond to the version we have specified in this command. Only move on to this step if Homebrew has successfully installed. If you do not have a Mac and are not intending to produce an iOS build, feel free to skip this step.


You will find three executables in build/javafxports/ios. Notice that in /bin there are scripts to execute the application. These scripts rely on preserving the current folder structure.

It was also used on the Bada operating system and on Symbian OS along with native software. Users of Windows CE, Windows Mobile, Maemo, MeeGo and Android can download Java ME for their respective environments (“proof-of-concept” for Android). Oracle Java Embedded enables you to develop highly functional, reliable, and portable applications for today’s most powerful embedded systems.

In Other Projects

To do so, execute the following command in the terminal. Java for Mobile supports platforms that are specifically targeted for embedded markets. Generic Connection Framework Optional Package (GCF-OP) (JSR-197) permits applications that rely on GCF in the Java ME platform to migrate to the J2SE platform. However, despite its popularity, it is now considered too complex and old for Android. Among the other technologies used for this purpose are React Native, Angular Material, Firebase, and Figma. FormsFX A framework for easily creating forms for a JavaFX application.


Functions must return either no results, one result, or two results where the type of the second is the built-in ‘error’ type. They let you use apps for a huge variety of purposes, from GPS mapping to email to entertainment. But even if your phone doesn’t have a fancy touch screen or keyboard, it may be smarter than you think. That’s because many phones include support for Java apps.

Chihiro Saito, a Blu-ray Disc Java (BD-J) developer, shows how you can use a pre-packaged BD-J application to run in a PC player or a consumer Blu-ray Disc player, complete with source files. CHAPI allows the invocation of Java ME platform applications from native applications and vice versa. These Skins will add more functionality to the controls of your applications with no need to make code changes.

Save the file as mkpdir.bat or and execute the file from the project’s root directory as root . This will be necessary for the compilation of the openJDK and the development of the iOS build. Create a new file in the project’s root directory called and add the following content to the file. Lastly, I will not demonstrate the production of signed executables in this tutorial. For this reason, iOSSkipSigning is set to true and we do not make use of the releaseAndroid gradle task. You can, however, provide the appropriate accommodations to produce signed apps.

Create A Ram Disk For Ios Builds Ios Only

Project HD Cookbook is an open, collaborative place to gather code for BD-J applications, and other GEM TV platforms. Project HD Cookbook includes GRIN – a framework for GRaphical INteractivity. This framework manages the display of features that are arranged into a show and provides simple remote control handling. Java for Mobile Devices is a set of technologies that let developers deliver applications and services to all types of mobile handsets, ranging from price efficient feature-phones to the latest smartphones. Java is is currently running on over 3 billion phones worldwide, and growing. It offers unrivaled potential for the distribution and monetization of mobile applications.

Some Screenshots Of My Sample App

NetBeans IDE supports Oracle Java ME Embedded and Java Card platform. Java TV is a Java ME-based technology that provides a performant, secure, and easy to implement solution for developing Java applications that run on TV and set top box devices. Java is a programming language and platform created by Sun Microsystems more than a decade ago. As phones became increasingly powerful, Sun created a version of Java, called Java 2 Micro Edition , designed specifically for phones.

Fxyz Project

Designed for mobile phones, the Mobile Information Device Profile includes a GUI, and a data storage API, and MIDP 2.0 includes a basic 2D gaming API. Applications written for this profile are called MIDlets. Almost all new cell phones come with a MIDP implementation, and it is now the de facto standard for downloadable cell phone games. However, many cellphones can run only those MIDlets that have been approved by the carrier, especially in North America. The Connected Limited Device Configuration and Mobile Information Device Profile are standards-based technologies for developing applications that run on small mobile devices.

The open-source Mika VM aims to implement JavaME CDC/FP, but is not certified as such (certified implementations are required to charge royalties, which is impractical for an open-source project). Consequently, devices which use this implementation are not allowed to claim JavaME CDC compatibility. The Personal Basis Profile extends the Foundation Profile to include lightweight GUI support in the form of an AWT subset.

Any struct type, all of whose exported methods have supported function types and all of whose exported fields have supported types. Any interface type, all of whose exported methods have supported function types. For a start, the plugin currently does not fully support Java 8. On Android, it uses retrolambda to handle Java 8 Lambda Expressions & Method References. Additional dependencies make it such that you can use Java 8. However, the process is straightforward, the builds work as expected, and the compilation time is not too long.

Build And Run Your Application!

Some recommendations from different IT specialists on Quora. Some of them strongly recommend building native products because they have higher performance. Also, such apps can possess as many features as customers want or need. JavaFX applications can target desktop, mobile and embedded systems. Libraries and software are available for the entire life-cycle of an application. Oracle Java ME Embedded is a Java runtime that leverages the core Java ME technologies deployed in billions of devices around the world in the Internet of Things.

Security and Trust Services for J2ME provides Java ME software applications with APIs for security and trust services through the integration of a security element. Do you know that most of javamobile mobile app development companies are focused on both? The thing is that in big countries like the USA And the UK, iOS and Android platforms are used by people in roughly equal numbers.

If you look very closely at my source code, you will notice that in the iOS version of the source code, I have removed unsupported API such as java.util.function.BiConsumer and java.util.Map.replace(). Sun provides a reference implementation of these configurations and profiles for MIDP and CDC. Starting with the JavaME 3.0 SDK, a NetBeans-based IDE will support them in a single IDE. Extend the reach of Java in the Internet of Things with OJPI. Coupled with the massive Java ecosystem of over 9 million Java developers worldwide, this new program will help enable greater development and deployment flexibility for the IoT.

Create A Folder To House The Project

TestFX allows developers to write simple assertions to simulate user interactions and verify expected states of JavaFX scene-graph nodes. Have an application that requires Java to perform your job, it is recommended that it be removed or disabled on your system. If either pass a language boundary, the program will exit. Note that byte slices are passed by reference, and support mutation. For Objective-C binding, gobind generates a protocol that declares methods corresponding to Go interface’s methods. Gobind generates target language (Java or Objective-C) bindings for each exported symbol in a Go package.