Explain OOP concepts — inheritance, polymorphism, abstraction, encapsulation. AmbitionBox Differences between method overloading vs overriding. AmbitionBox How HashMap vs ConcurrentHashMap work internally. Glassdoor Singleton pattern — how you implement it and thread safety. AmbitionBox How garbage collection works and memory management basics. (common in Java interviews even if not specifically reported)
Familiaridade com Cloud e microsserviços
Questions on Collections, overriding equals and hashcode methods, Strings, Exceptions
Write a Java program to compute the Fibonacci sequence.
nature of class, inheritance, a few db-oriented questions, some spring/hibernate questions. What are my strong points, weak points. Described some difficult technical problems solved, how I handle adverse personal situations.
find duplicate character in string
I was a skills check using code assignment (Java/MySQL)
MVC in spring
SQL query to print Eid and DIP from 2 different tables
Question related to probability
Viewing 4121 - 4130 interview questions