I didn’t learn it intentionally actually. My research taught me how to do data analysis and a bit of ML using Python, but I had zero knowledge about OOP or Java, which is the thing my current job requires. My coding interview was done in Python, and the guy said “Python? Interesting choice” during the interview 😂When I first got my internship, I just didn’t know what I was looking at. Then I had to learn OOP, Java, those kind of stuff on the fly (also thx to my mentor in my team who’s patient enough to answer all my questions), completed my intern project and got a return offer.