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Java Interview Preparation Roadmap: Crack Java Interviews with Confidence!
3 min readFeb 16, 2025
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🛠Step 1: Master Core Java
✅ Before anything else, you MUST have a strong grasp of Core Java. This includes:
- OOP Principles (Encapsulation, Inheritance, Polymorphism, Abstraction)
- Data Types & Variables (Primitive vs. Wrapper classes)
- Control Statements (Loops, Conditionals, Switch-case)
- Collections Framework (ArrayList, HashMap, HashSet, LinkedList)
- Exception Handling (Checked & Unchecked Exceptions, try-catch-finally)
🎯 Interviewers love to test your fundamentals with tricky questions, so make sure you’re confident in these topics!
🚀 Step 2: Multithreading & Concurrency
🧵 Next up, one of the most asked topics in Java interviews — Multithreading!
- Thread Lifecycle
- Runnable vs Thread Class
- Synchronized Keyword & Locks
- Executor Framework & Thread Pooling
💡 Companies like Amazon and Google often ask concurrency-related questions to test your ability to write…