I've taken many spring trainings, but this is the first time I've seen training conducted in such an easy-to-understand order. It's really the best. I've been using spring in my work like I was grasping at clouds, but now I'm grasping the concepts. It was really good to understand because it created a situation where I had no choice but to use di and aop naturally in projects without having to learn the concepts of aop and di first. The part where DI was first introduced made me slap my knees! Haha (I finally understand "why" I have to use it) Thank you. !!(__)