Java beginners and java beginners

Java beginners and java beginners

I am determined to start learning java from scratch and record my learning progress and learning achievements every day for sharing and promotion.

Since I am a newbie and have never posted any documents before, I may be more likely to deepen my work based on my existing knowledge and capacity, you may not describe too much about what you can do after reading it. If you have any shortcomings, please correct me. I will keep improving and modifying it. Thank you!

Ps: the document will be published based on different topics or learning feedback in java learning.