Android Studio | Firebase CRUD operation with Java

How do I make sure that if an entry is edited it will be reflected in the database table? Because every other function than that one is working just fine.

Objects.requireNonNull(getSupportActionBar()).hide();

it gets me error here

u didn't explain every code u typed

requestWindowFeature didn't show or error

gOOD

this is f awesome!!!! 100/100

this tutorial video helped a lot. :>

also, can you make a tutorial video on how to track the real time location of a truck/vehicle using google API in android studio java using realtime database from firebase? thank you

Can you teach me how to create an app that reads data from Firebase and plots graphs?

Can you please show how to set values and keys inside the realtime firebase database?