(Official Java development engineer QQ group (27163376), please enter your ID for verification. ?This document is the lecture notes of the basics of JAVA this year. It explains some basic knowledge of JAVA. The model is clear and clear, and the explanation is simple and easy to understand. When I started to get it, I thought it was very good. I feel very good, I believe that those brothers who have poor Java foundation can have a help.
JAVA1009.pdf)