What is an Android Runtime?

Answer

  • Android Runtime consists of Dalvik Virtual machine and Core Java libraries.
  • DVM is optimized for low processing power and low memory environments.
  • Unlike JVM, the Dalvik Virtual Machine doesn’t run .class files, instead it runs .dex files.
  • Android 2.2 “Froyo“ brought trace-based just-in-time (JIT) compilation into Dalvik, optimizing the execution of applications and dynamically compiling frequently executed short segments of their bytecode into native machine code.

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