Medlife Interview Experience | Java Developer 4.5 Years

Round 1:https://www.geeksforgeeks.org/dsa/find-distance-between-two-nodes-of-a-binary-tree/Round 2: Questions on previous projects? Question on technology choices....

Round 1 https://www.geeksforgeeks.org/dsa/find-distance-between-two-nodes-of-a-binary-tree/

Round 2 Questions on previous projects? Question on technology choices. Comparison between frameworks? What's the size of the thread pool you choose? When do you choose between Thread class Vs Runnable Class? Difference between default and protected access specifier? Where do you choose serialization? What will happen if you don't provide UUID? Difference between Exception and Error? Difference between array and ArrayList? Why the "main" method should be always public? Difference between TreeMap, LinkedHashMap?