Below is WebDriver Interface & Respective class implementation architecture.
ChromeDriver driver = new ChromeDriver(); // Lot of methods from parent calss RemoteWebDriver
vs
WebDriver driver = new ChromeDriver(); // we can access only few methods from WebDriver Interface & SerchContext Interface
Ex: Advantage of interface
Public List getList(){
return new ArrayList<String>()
}
We can return any implemented class for any method which has return type as interface
