Java Interview Questions & Answers: Zero to Job-Ready (10 Hours)
🚀 Welcome to the Ultimate Java Interview Masterclass! This 10-hour mega-marathon is your complete, one-stop roadmap to cracking Java interviews at top product-based companies and service giants like Amazon, Google, Accenture, Infosys, and TCS.
Whether you are a fresher aiming to get job-ready or an experienced backend developer preparing for your next big transition, this video covers everything from Core Java and tricky coding algorithms to Spring Boot, Microservices, and Apache Kafka.
📌 Don't forget to BOOKMARK this video, LIKE, and SUBSCRIBE for more end-to-end technical courses!
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⏱️ VIDEO CHAPTERS (Timestamps)
Jump directly to any topic or coding problem:
00:00:00 - Introduction & Java Interview Roadmap
01:08:33 - Top 80 Most Asked Java Interview Questions
01:08:34 - Deep Dive: Immutable Class with Mutable Fields
01:33:17 - 3Sum Problem (Java Code Implementation)
01:49:49 - Reverse Words in a String (Java Code)
01:49:50 - Find All Duplicates in an Array
01:20:00 - Java Exception Handling Framework
02:26:27 - Exception Handling Tricky Interview Questions
02:26:30 - Difference Between equals() and Assignment Operator (=)
02:43:09 - Longest Substring Without Repeating Characters
02:53:08 - Merge Two Arrays Without Using Sorted Function
03:02:50 - Compress String Based on Frequency of Each Character
03:13:00 - JUnit Framework & Testing Best Practices
03:27:00 - JUnit Interview Questions & Concepts
03:27:17 - Swap Two Values Without Using a Third Variable
03:32:04 - Find Pivot Index (Java Code)
03:42:34 - Java 8 Stream API Coding Questions (Most Important)
05:14:20 - Top 40 Spring Boot Annotations Quick Revision
05:37:41 - Real Java Interview Questions Asked in Accenture
06:33:40 - Isomorphic Strings (Java Code)
06:44:00 - Java Interview Questions Asked in Product Based Companies
07:30:17 - Real Java Interview Questions Asked in Infosys
08:18:50 - Microservices Interview Questions & System Design
09:03:25 - Apache Kafka Interview Questions & Architecture
09:58:45 - Singleton Design Pattern & Kadane's Algorithm Java Code
10:18:22 - Outro & Next Steps for Your Career
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💻 WHAT YOU WILL LEARN IN THIS COURSE:
• Core Java & Multithreading: Concurrency, memory management, and tricky theoretical questions.
• Java 8 Stream API: In-depth coding problems, filters, maps, collectors, and grouping operations.
• Framework Mastery: Spring Boot, Hibernate, JUnit, and Microservices architecture.
• Distributed Systems: Apache Kafka fundamentals, event-driven systems, and real-time streaming.
• Data Structures & Algorithms: Company-specific coding rounds broken down step-by-step.
💬 What company are you preparing for? Drop your target company name in the comments below! 👇
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