Oracle Software Engineer interview questions

5 rounds , First OA , 1 med , 1 hard dsa question. Next rounds are technical (3 rounds), 1st rounds on tech stack and basic dsa ques(linkedlist, trees), next round medium dsa(trees) and LLD, next round computer networks then HR

Stage 1: Initial Screening (HR/Recruiter), Stage 2: First Technical Interview (Technical Staff Member) Purpose: To evaluate your fundamental coding abilities, problem-solving skills, and understanding of core Java concepts. This interview will likely include a coding challenge focused on Strings (LeetCode Medium). Java Core Concepts: The interviewer will likely ask questions to assess your understanding of fundamental Java principles: Object-Oriented Programming (OOP): Encapsulation, Inheritance, Polymorphism, Abstraction. Be prepared to explain these concepts with examples. Data Structures and Algorithms: Basic knowledge of common data structures (arrays, linked lists, hash maps, trees) and their time/space complexities. While the coding challenge focuses on strings, they might ask about the underlying data structures used to implement string operations.