Round 1 [PS/DBMS Round] -

1. Parenthesis Check
   https://leetcode.com/problems/valid-parentheses/
2. String To Double Conversion
3. DB Connection Using JDBC

Round 2 [HLD Round] -
Had An Interview With A Person In Israel, Asked Me About My Projects And Asked An HLD Question About How Different Services Will Interact With Each Other.
I Replied That We Can Implement Some Message Queue To Pass Events From One Service To Another.

Round 3 [HM Round] -
Asked Me About Approach To Resolve The log4j Issue That Has Been Exposed Recently.
Besides That Behavioural Questions.

Round 4 [Technical Round] -

1. Asked Me To Explain My Projects
2. Write A Piece Of Code For Multithreading
3. Sort An Array Of Integers On The Basis Of Their Frequency
   https://leetcode.com/problems/sort-array-by-increasing-frequency/
4. Write Code For Singleton Design Pattern