I need to learn android but I don't know how, I need help.

I have to certification in java but I need gd tutorials to learn android 

u need to be know or have some java skills, and use some tools that can help u to start developing android like,, eclipse or Android studio,, and (Android studio) an official tool from google u can use it,, but in general,, u must know some java and then reed some books or visit android developers website,,, good luck