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What are the four pillars of OOP in Java and how do you achieve them?

A good PDF for 2026 should include Java 17/21 features, Virtual Threads, and GraalVM.

What is the difference between == and equals() when comparing Strings? 2. Java 8+ Features & Functional Programming download java interview questions and answers pdf

Based on current trends, interviews now emphasize practical experience over theoretical knowledge alone. 1. Core Java Basics & OOP Concepts

3. Multithreading & Concurrency (Hot Topic: Virtual Threads) What are the four pillars of OOP in

With the introduction of Project Loom, understanding the shift from OS-managed threads to Virtual Threads is crucial.

Explain Garbage Collection tuning for high-throughput and low-latency applications. download java interview questions and answers pdf

Companies need developers who can troubleshoot memory leaks and performance bottlenecks in production.