Tell us about your experience using constants in projects.

In Android projects, I use constants to store immutable values such as keys for Intent extras, API URLs, error codes, and other fixed parameters. I usually declare constants in a separate class or object to centralize their storage and facilitate maintenance. For example:

object Constants {
    const val BASE_URL = "https://api.example.com/"
    const val EXTRA_USER_ID = "extra_user_id"
}

This helps avoid duplication and errors when using the same values in different parts of the application.