First things first, you'll need to know the fundamentals of Java, like data types, operators, and control structures. It's like learning to ride a bike, except instead of falling off, you'll be able to write clean and efficient code. And trust me, it's a lot more fun than it sounds!
For example, you might get asked about the difference between primitive types and reference types. Now, I know what you're thinking, "Uh, what's the difference?" Well, let me tell you, it's like the difference between a smoothie and a fruit salad - they're both delicious, but one's a lot more... blended.
