Each platform that runs Java needs a virtual machine (VM) implementation.
Java doesn’t compile to native processor code but rather it relies on a “virtual machine” which understands an intermediate format called Java bytecode. You can use it on your desktop PC and even on the Raspberry Pi. It can be found on many different types of devices from smartphones, to mainframe computers. Java is a programming language first released by Sun Microsystems back in 1995. The job of these virtual machines is to interpret the bytecode. Notably, using native code on Android generally does not result in a noticable performance improvement, but it always increases your app complexity.” Java As a developer, you need to balance its benefits against its drawbacks. According to Google, “the NDK will not benefit most apps. It is possible to develop C and C++ app using the Android Native Development Kit (NDK), however it isn’t something that Google promotes. Large parts of Android are written in Java and its APIs are designed to be called primarily from Java. The official language for Android development is Java. Assuming you have a certain level of technical knowledge then it is possible to develop Android apps yourself, but what programming languages do you need to learn? Whether for fun or for profit, developing Android apps can be rewarding, both personally and financially. Even if you don’t think we are fully in a Post-PC era, it is clear that mobile platforms play an essential role in many parts of our lives.
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