Group strings characters - I given the logic to converting the string to array and then sort simply. asked to write the code :p

How to get the response from intent service - I said using broadcast. Interviewer asked which kind of broadcast (I scared) . I told what do you mean of kind ( probably point of my rejection) . answered local or .....( :p:p)

What is abstract class? I answered. Difference between abstract class and interfaces ? I answered. Name some of abstract class. I answered the - Context. Name some more abstract classes I answered - ContextThemeWrapper Name other than This. I silent ( I was not able to remember). and told not able to remember.