– R.java is neat & elegant; Every application has resources & common example of resources are strings, colors, drawable and bitmaps. Instead of hard-coding strings in the application, one will use an id for a string.
How do you use strings in R.java file:
One might be preferred to put a constant like “R.id.text” in R.java. But R.java is not editable, even if it were it gets regenerated all the time.