Cracking Core Java Interview

Preparing for a Java interview at a service-based MNC? This PDF gives you the exact 100 questions that are repeatedly asked at companies like TCS, Infosys, Wipro, Cognizant, Accenture, and HCL with detailed answers and code snippets.

What's inside:

1. OOPs Concepts (10 Qs)
2. Core Java Fundamentals — String, Collections, Autoboxing (10 Qs)
3. Java Collections Framework (10 Qs)
4. Java 8+ — Streams, Lambdas, Optional, Functional Interfaces (10 Qs)
5. Multithreading & Concurrency (10 Qs)
6. JVM, Memory & Garbage Collection (10 Qs)
7. Exception Handling (5 Qs)
8. Design Patterns — Singleton, Factory, Builder (5 Qs)
9. Generics, Records, Sealed Classes (10 Qs)
10. Coding / DSA Patterns — Two Sum, LRU, Linked List, Kadane's (20 Qs)

Every answer is interview-ready concise, complete, and written the way a top candidate would explain it to an interviewer. Code snippets are included for all coding questions.