What Is R.java File, View And View Group In Android App Development

In this video, you will learn about Android's R.java - how it is generated and what it contains. How to access resources in Java code using id of resources in res folder? What is strings.xml and how to access string resources in Java code? What is view and view group in Android? How to arrange elements in particular style and what are the various views and view groups that exist in Android.