Some doubts related to extension compilation

[oseamiya]

@Know_About_IT

Anyone can explain me its concept/usage?

Classes.jar and AndroidRuntime.jar

classes.jar contains .class bytecode (used for compiling APK), while AndroidRuntime.jar contains .dex bytecode (used while running code on companion dynamically)

Also, It is worth mentioning the difference between bytecodes .class & .dex

Difference between bytecode in .class file and that of .dex file