IBM Consultant interview questions

I interviewed at my college's career center. I interviewed with 3 people back to back for 30 mins each. One case interview, two more behavioral interviews. Only one round! I got a phone call a couple of weeks later letting me know that they were going to offer me a job, and got the official offer letter a few weeks later.

Three rounds of interview, one written round, two technical interview and final HR or Managerial round. Here the interview the focus was on candidates with Java Background. Mainly asked questions from Threading, String related questions, JVM etc. Asked to even write a simple program.