You only know ArrayList . An interviewer asks "What's the difference between ArrayList and LinkedList ?" and you freeze.
To help you on your journey, here are some recommended resources: java from zero to first job
Every senior developer remembers being exactly where you are right now – confused, staring at an IDE, wondering if they're smart enough. You only know ArrayList
Now you understand objects. Time to learn the standard tools Java gives you for free. Now you understand objects
: Learn how to write "robust" code that doesn't crash at the first sign of an error. Phase 2: Professional Tooling & Environment (Months 5–6)
Learning a programming language takes time and effort. Stay motivated by:
Java powers 90% of Fortune 500 companies. It runs on 3 billion devices. Spring Boot is the king of backend microservices. And most importantly: Junior Java developers are still in high demand because banks, fintech, healthcare, and logistics refuse to rewrite their legacy systems in trendy languages.