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
I was a skills check using code assignment (Java/MySQL)
Write a Java program to compute the Fibonacci sequence.
SQL query to print Eid and DIP from 2 different tables
MVC in spring
Do you like the Agile development process and why
They asked to write a code to convert a number of hexadecimal to decimal and then to binary which should pass all the test cases driven in JUnit
Joins in SQL ?
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