Most likely, at first you will be refused. When you return home, you will be looking for answers to questions that you have not answered. That's how it should be. In the frontend, perhaps, the more technologies you have mastered, the cooler you are. And in Java, if you are committed to the harsh Enterprise (working in banks and large consulting agencies), only immersion in commercial projects will help.
My job search took a long time, but I can say that I Australia WhatsApp Number Data learned everything basic in the courses in the first two quarters. Although there were also useful things further, it was important to repeat the old material along with studying them. Commercial development is in any case different from educational projects. While there is no “combat” experience, many things can be understood, but not remembered. Since the 1990s, Java has acquired many frameworks and libraries, so you need to master this language like this: you study Java Core, basic principles, algorithms, SQL - and go to work.
The ability to read code is also very important. When you take on a new project, 50% of your time is spent understanding what has been done before, another 40% on documenting your code, and only 10% on programming. It is only in films about hackers that miracles happen from quickly entering commands. How to learn to read code? Ideally, you need to take a ready-made project for a thousand classes, where after the next update something does not work, and delve into how everything works and what went wrong.