I applied online and received an email requesting a few timeslots. The interview was scheduled a few days later.

Find the 5 highest salaries from the Emp table.

Questions on Multithreading:

1. Given 2 methods, A and B, and 2 threads, t1 and t2, can the 2 threads invoke methods A and B simultaneously?

2. What if the methods are declared synchronized?

3. What if one of the methods is static synchronized?

How do you find duplicate numbers in an array? What is the time complexity?

What are Serialization and Externalization?

Tell me about Strings in Java. Why are strings immutable? Are passwords stored as strings or char arrays?