What knowledge of java is needed for Android development?

Question

Java

What do you need to know well from Java for Android development?
What you need to know not related to java?
What books would you recommend for learning android?
ps Knowledge of java se is at an intermediate level and it will not be difficult to finish what I don't know.
But development for android is like a still pool. I do not know what and how, where to start.

Answer 1

java se at intermediate level

So what are you waiting for? Get started right now.
There is nothing mystical about Android. Knowledge of basic syntax, basic constructs,
OOP, collections, and an initial understanding of multithreading will be
enough.
A good book for beginners (there is an old edition in Russian
on ozon
)
Lessons (in Russian): Startandroid

Answer 2

Lessons (in Russian): Startandroid

+100500
I started from scratch. When I started, I didn’t even know what OOP was)))
All my programming knowledge came down to lessons at school, Turbo Pascal and QBasic))
) even more overpower like two fingers on the asphalt.

Answer 3

Enough SE. And learn the Android SDK. It is quite specific and significantly different from everything that was on normal PCs.