What are important thing should know in java for android

Question

android

Answer 1

can you tell me in details

Answer 2

oop is most important thing to know in java before start in android

Answer 3

why we use oops In android

Answer 4

in general oop is important in building large apps .
you will need to call different classes and activities and handle override features and many other needs

Answer 5

you can get more info from this article:
http://www.dummies.com/programming/java/object-oriented-programming-for-android-apps/