There are 4 rounds.
1st is online, consisting of MCQs and questions on Cocubes from sections: Java, Spring, Hibernate, REST, JSP, and Struts. There are also 2 coding questions. The MCQ questions are tough.
After clearing the 1st round, you will be called for a technical interview at the Bangalore office. There are 2 technical interviews.
Just read the basics of Core Java from a book; that will be helpful.
Mostly questions asked from your resume. Whatever you mention your skills, clear the basic concepts.
The following metrics were computed from 1 interview experience for the Deloitte Java/J2EE Developer role in New York, New York.
Deloitte's interview process for their Java/J2EE Developer roles in New York, New York is extremely selective, failing the vast majority of engineers.
Candidates reported having very good feelings for Deloitte's Java/J2EE Developer interview process in New York, New York.