Is having good knowledge about java alone enough to publish on google playstore ?

Question

Im still learning so im still at a basic level but...

i have an idea which i have already designed on paper but i need to do the following.

Learn Android Studio
Store data to servers
Each user signs in using fb,gmail ect..
2D GUI
Point system
Messaging
notifications
Security
Internet connectivity stuff
advertising

Can i do all this with just java? i dont really want to learn any other language unless its necessary.

thanks

Answer 1

in order to store data to server.. i.e. to sql database u would need jdbc api. those are preinstalled in Jdk.. so u just need to learn its working and how to connect to the relational database using jdbc and MySQL or sqlite

Answer 2

awsome thank you

Answer 3

and any Database server..

Answer 4

im not sure how data base servers work would i use googles?