First interview, very failed! I didn't pay attention to many basic things at ordinary times. Now I have to combine the original answers as follows: 1. Write the packages, interfaces, and classes that are commonly used in your development (at least five )? > Package: java. lang, java. util, java. io, java. SQL, java. awt> Interface: java. util. list, java. util. set, java. util. iterator, java. util. map, java. SQL. driver> Class: java. lang. exception, java. io. file, java. lang. math, java. lang. thread, java. SQL. driverManager2. What books have you read about java? What is the title? > Thinking in java, Agile java, java Development Super tool set, and crazy java 3. Check the use of SQL statements, questions about adding, deleting, modifying, and querying databases 4. Hibernate level-1 and level-2 Cache 4. logic question: what is specific? 5. All questions in English: No reading