The last lecture of the roadmap.. I finally finished it. I started listening to Younghan's lectures after I joined my first company. I thought I could only handle JS and Node, but the company said they use Java and Spring, so I listened to the free lectures in Younghan's roadmap and they were so helpful that I bought the rest of the paid lectures right away. I've been working for almost 2 years now, and Younghan's lectures were really helpful. Thank you!