Fundamental for building blocks / components for Android Apps.
Android apps are developed in the Java. The Android SDK tools compile
the code along with any data and resource files into an Android packages, an
archive file with an [
.apk] suffix. All the code in a single [.apk] file is considered
to be one application and is the file that Android devices use to install the
application.
Each Android application lives in its own security sandbox.
Android fundamentals video to learn easily.
