Core Topics to Revise
Programming (Java & C++)
OOP principles (Encapsulation, Inheritance, Polymorphism, Abstraction)
Collections Framework, Multithreading, Exception Handling
JDBC, Servlets, JSP basics
MERN Stack
React.js (hooks, state management, lifecycle)
Node.js + Express.js (API building, middleware)
MongoDB CRUD, indexing, schema design
AI/ML Fundamentals (basic)
Difference between AI, ML, DL
Supervised vs Unsupervised learning
