Fidelity Investments Java Software Developer interview questions

Its a good and new experience for me , the interview is like very easy conversational between me and interviewer who are asked about basic level of core java questions and spring boot

The job interview is for Java software engineer with 6 to 9 years experience. Interview was done in three rounds. In the first round, asked important Java, Spring question and asked basic code questions like palindrome. In the second round asked more about advanced Java, Spring, Spring retry. In the final round call with manager about basic questions