i got a new job that provide IT services, hope this app can help me to understand Java effectively..

Answer 1

You must hope that your employer never finds this post...

Answer 2

Congratulations on your new job, however, this app can only teach you the basics. I suggest watching tutorials on youtube for a more advanced understanding of Java, or any language for that matter.

Answer 3

How did you land an IT job without knowing what I can only assume is part of the required credentials (otherwise your post would be moot)?