My Misconceptions on Java

1. 1. To.make use of extended methods from a class and implement methods from interface , you need not always use 'extend' or 'implements' . A individual class can still use these methods by importing respective classes (For interface importing respective class that has implemented interface methods should suffice).
2. DesiredCapabilities dc = DesiredCapabilities.chrome();   -- what does this do
3. FruitClass a = new JamunClass();  ... This help to refer to methods of JamunClass with the help of object 

          Similarly we can use:

         Interfacename obj= new classname()

         This is generally used when some other class(used above code inside it) which has just imported the class that implements interface

4. UserClass a1 = new UserClass(FruitClass obj);  -- what does obj do here