is this app sufficicient for learning java completely? if no, what books and sources should I refer? I want to build android apps too.

Answer 1

You can easily download pdf of mentioned book.

Answer 2

it is just an overview. If u want to study in detail.. refer" complete reference java"

Answer 3

alright . thnx, does the book contains exercises n all ?

Answer 4

in my experience no amount of reading is enough, practice and real world experience is key