So, you want to get better at Java coding? That’s awesome. The thing is, just watching videos or reading books only gets you so far. You really need to get your hands dirty and write some code.

So, you’ve got a HackerRank test coming up, huh? It’s pretty common these days, with lots of companies using it to see if you can code. It can feel a bit daunting, but honestly, it’s just another ...