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This article compares the application programming interfaces (APIs) and virtual machines (VMs) of the programming language Java and operating system Android.. While most Android applications are written in Java-like language, there are some differences between the Java API and the Android API, and Android does not run Java bytecode by a traditional Java virtual machine (JVM), but instead by a ...
Depending upon how the desktop virtualization app works, they use RDP or can use another protocol of their own. Most business oriented desktop virtualization apps require specific types of equipment or services in order for the app to fully function. For example, VMware Horizon Client requires specific VMware equipment for the app to work. [2]
Unlike Java Virtual Machines, which are stack machines, the Dalvik VM uses a register-based architecture that requires fewer, typically more complex, virtual machine instructions. Dalvik programs are written in Java using the Android application programming interface (API), compiled to Java bytecode, and converted to Dalvik instructions as ...
This enables JamVM to be installed as an alternative Java Virtual Machine to hotspot when using OpenJDK. When using Ubuntu on ARM, JamVM was the default VM. [1] Now, HotSpot Zero is used on armhf. [2] In 2006, JamVM was used by Google's Android team during development of the application framework.
Android Runtime (ART) is an application runtime environment used by the Android operating system. Replacing Dalvik , the process virtual machine originally used by Android, ART performs the translation of the application's bytecode into native instructions that are later executed by the device's runtime environment.
[2] [3] Dalvik Turbo has an alternative version which runs on non-Android platforms, Sailfish OS, which is known as Alien Dalvik. [4] The virtual machine runs the Java platform on compatible mobile devices, and it can also run applications which have been converted into a compact Dalvik Executable (.dex) bytecode format for lower end devices.
Some virtual machines, such as the popular Java virtual machines (JVM), are involved with addresses in such a way as to require safe automatic memory management by allowing the virtual machine to trace pointer references, and disallow machine instructions from manually constructing pointers to memory. Other virtual machines, such as LLVM, are ...
There are many apps in Android that can run or emulate other operating systems, via utilizing hardware support for platform virtualization technologies, or via terminal emulation. Some of these apps support having more than one emulation/virtual file system for different OS profiles, thus the ability to have or run multiple OS's.