The version number 16-02 or 16_02 is the final patch of the Alpha 1.0 cycle before Notch moved to Alpha 1.1.0 (which added reeds, compasses, fishing rods, and more).
The launcher will pull the official files from Mojang's servers. Why Seek Out Alpha 1.0.16_02? minecraft java alpha 1.0 16-02 download apk
If you actually want the Java version for your computer, do search for an APK. Use the official Minecraft Launcher. The version number 16-02 or 16_02 is the