常用类:
String
StringBuffer/StringBuilder
Integer(8种包装类)
Math/Random
Date/DateFormat/Calendar
ArrayList
LinkedList
HashSet
HashMap
FileReader
FileWriter
BufferedReader
BufferedWriter
FileInputStream
FileOutputStream
BufferedInputStream
BufferedOutputStream
Thread(能够说清楚,你就写)
Socket
ServerSocket
常用接口:
Collection
List
Set
Map
Comparable
Comparator
FilenameFilter
Runnable(跟线程相关)
跟数据库相关的接口:JDBC
Connection
Statement
PreparedStatement
CallableStatement
ResultSet
常用包:
java.lang
java.util
java.io
java.net
java.sql |
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