3-4 round depends on the result of interview.
Did online OA. 3 algo questions in 2 hours.
After that, it will be HR round asking you about your personal goal and past experience.
Then it will be a pair programming interview and debug code test.
Interview questions [1]
Question 1
Basics of Java programming like:
What is JDK? ...
What is the difference between JDK, JRE, and JVM?
What is a JIT compiler?
What are Brief Access Specifiers and Types of Access Specifiers?
How many types of constructors are used in Java?
etc...