Summary of the first week

Summarize the learning content of this week ：

• The content of the first week is relatively simple , From the initial JAVASE Start learning , But some tedious things are omitted , for example 1. The collection framework only introduces List,Set,Map.2. Reflection .3. Regular expressions .4. The seven principles .5. Design patterns and so on ; But the review and supplement of knowledge played a good help , It is also reasonable to put the key and difficult points at the end of the explanation .
• Key and difficult points of this week ：1. Collections framework .2.Mysql sentence .3. The three major characteristics ： encapsulation , Inherit , polymorphic .4. rewrite , heavy load .5. Basic grammatical statements .6.String,StringBuffer( Thread safety ),StringBuilder( Thread unsafe ), Personal evaluation of the mastery of knowledge ：80%, The rest 20% After passing the review, you will have better memory .
• The exam results in the first week were not ideal , The end point is to abstract classes , Interface , Entity class , Example method , Static methods , Static variables and other problems in actual code are not clear enough ;

Plan solutions ：
1. Contact Niuke more about this topic （ Every day 50 topic ）.
2. Test the code in the title on the software .

• The learning content of the second week is expected to start with the multi table query of the database , To the front ,ajax And so on , Continue to write blog in the second week , Answer questions for beginners , Also prepare for your follow-up review .