Are all Java training institutions scams?

As far as I know, only more than half of them are lies, and good Java learning classes are hard to find.

Although there are many good ones, the best one you choose is Okay, if you choose a bad class, you will be a 100% victim...

So, you must choose a good class, don't become a victim, and get screwed by a bad class!

Both good and bad people on the Internet say that they are good, but you can’t pretend to be good at teaching. You can take a look at it and then go see it in person.

I searched for java on site B, and the first java learning video is Teacher Du’s java video, which is from a widely recognized class. You can look for it and see it in person