Proper sample code for implementation

[krishnaguptagithub]

Checklist

• [X] I am aware that this issue is being opened for the NewPipe Extractor, NOT the app, and my feature request will be dismissed otherwise.
• [X] I made sure that there are no existing issues - open or closed - which I could contribute my information to.
• [X] I have taken the time to fill in all the required details. I understand that the feature request will be dismissed otherwise.
• [X] This issue contains only one feature request.
• [X] I have read and understood the contribution guidelines.

Feature description

I am searching for a proper implementation guide from so many days. I want to make an android app that can simply play youtube video using exoplayer but I am not getting the sample code for it.

Why do you want this feature?

I need to make an app using this.

Additional information

Language should be java.