Java Backend Developer (3+ Yrs) :: Interview Questions Asked @ Optum 🚀 ♦️ Core Java (OOPs, Collections, Concurrency Basics) 1️⃣ Explain difference between HashMap, LinkedHashMap and TreeMap. 2️⃣ How ...
A set of Java annotations which can be used in JVM-based languages. They serve as an additional documentation and can be interpreted by IDEs and static analysis tools to improve code analysis.