Welcome to your interview.
The question is on your right: Java String Handling Differences. Take a moment with it first.
Talk your thinking through with me if you like - when you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes). Discussion and graded submissions share your five interviewer interactions, so spend them well.
Explain how string handling works in Java. What is the difference between String, StringBuilder, and StringBuffer?