The PDF usually covers from absolute basics to advanced core Java topics. Below is the standard chapter list:

"Don't just handle exceptions; understand them." Durga Sir explains the difference between Checked and Unchecked exceptions and why the try-catch-finally block is the ultimate safety net for your code. 5. Multi-threading

Each chapter ends with a "Frequently Asked Interview Question" section. Create flashcards from these. Practice explaining concepts like "Can we override a private method?" out loud.