Orange Java Developer interview questions

1- Coding (20 MCQs + 3 Programming) 2- Technical Interview - OOPs, Collection, Spring MVC 3- Coding (Puzzle based programming question) Rounds were good, my interview experience is so bad. As there is a huge gap between each round and every time we have to ask but they always tell to wait. I came all over from Noida to Gurgaon and the interviewer asked good questions from all areas and he was satisfied but want to know another method of every program he has given through Data Structure. He just wants the method which was not written in the books or on geeksforgeeks.(This is the reason for my rejection). If they don't want to take employee, I don't know why they schedule the interview.