interview started with
explain oops concept, polymorphism, encapsulation, call by value, call by reference different, get and post method,
series 1,3,4,8,15,27,50 what is next number
2nd round
1.wirte a method with parameter() that will calculate total balls
conditions : user will give the the nth of series
calculate total number numbers of balls which is in series
2,1,2,1,2.....n