What topics would I have to learn to create android apps in java or c++?

Question

I'm learning java and c++ mainly and I know java better than c++. But it's quite boring till I'm unable to make applications in android or pc. I don't know what topics should I learn to be able for this. I often use the following channel-

Answer 1

How you followed a tutorial.

I followed one an got good results.

Here are some resorces compiled by @gaurav

https://www.sololearn.com/Discuss/914055/?ref=app
https://www.sololearn.com/Discuss/285352/?ref=app
https://www.sololearn.com/Discuss/823823/?ref=app
https://www.sololearn.com/Discuss/311752/?ref=app
https://www.sololearn.com/Discuss/237742/?ref=app
https://www.sololearn.com/Discuss/987969/?ref=app