I attended the interview recently at Deloitte for a Java profile. They were looking for candidates with 3–5 years of experience. Below are the set of questions they asked me. Again, it depends on the panel you get for the interview, but these questions were asked to me.

Round 1: Written Test on Java

Round 2: F2F Technical

• Immutable class
• Singleton class
• Hash code and equals method
• Hash map internal implementation
• Difference between hash map and table
• Iterate a hash map
• Dependency injection concept