एप्लिकेशन डेवलपर उपयोगी पुस्तकालयों को खोजने के लिए मदद करने के लिए।
Android Library is the platform to help developers to explore more & more libraries to help to make their development process easier.
Library is the terms where you will find everything related to Android.
So you will find libraries, will learn android, will know many other things about the android.