Citibank Application Developer - Intern interview questions

I was asked about my project that involved HTML, CSS, JavaScript, PHP, and MySQL. The discussion delved into various aspects of the project, including some specific technical questions. At one point, the interviewer raised a question about an edge case that I hadn't handled in the project. I acknowledged this and explained that, while I hadn’t addressed it initially, I could propose a solution based on my current understanding. The conversation then shifted to Java basics, where the interviewer asked about handling NullPointerException. I mentioned that my primary experience in Java had been with object-oriented programming concepts, arrays, and strings. Additionally, I shared that I would handle NullPointerException using a basic try-catch approach, demonstrating my understanding with a simple code snippet. Most of the discussion was centered around my project...