<Table> <Tr> <Td> java. lang </Td> <Td> -- basic language functionality and fundamental types </Td> </Tr> <Tr> <Td> java. util </Td> <Td> -- collection data structure classes </Td> </Tr> <Tr> <Td> java.io </Td> <Td> -- file operations </Td> </Tr> <Tr> <Td> java. math </Td> <Td> -- multiprecision arithmetics </Td> </Tr> <Tr> <Td> java. nio </Td> <Td> -- the Non-blocking I / O framework for Java </Td> </Tr> <Tr> <Td> java.net </Td> <Td> -- networking operations , sockets , DNS lookups , ... </Td> </Tr> <Tr> <Td> java. security </Td> <Td> -- key generation , encryption and decryption </Td> </Tr> <Tr> <Td> java. sql </Td> <Td> -- Java Database Connectivity ( JDBC ) to access databases </Td> </Tr> <Tr> <Td> java. awt </Td> <Td> -- basic hierarchy of packages for native GUI components </Td> </Tr> <Tr> <Td> java. text </Td> <Td> -- Provides classes and interfaces for handling text , dates , numbers , and messages in a manner independent of natural languages . </Td> </Tr> <Tr> <Td> java. rmi </Td> <Td> -- Provides the RMI package . </Td> </Tr> <Tr> <Td> java. time </Td> <Td> -- The main API for dates , times , instants , and durations . </Td> </Tr> <Tr> <Td> java. beans </Td> <Td> -- The java. beans package contains classes and interfaces related to JavaBeans components . </Td> </Tr> </Table>
<Table> <Tr> <Td> java. lang </Td> <Td> -- basic language functionality and fundamental types </Td> </Tr> <Tr> <Td> java. util </Td> <Td> -- collection data structure classes </Td> </Tr> <Tr> <Td> java.io </Td> <Td> -- file operations </Td> </Tr> <Tr> <Td> java. math </Td> <Td> -- multiprecision arithmetics </Td> </Tr> <Tr> <Td> java. nio </Td> <Td> -- the Non-blocking I / O framework for Java </Td> </Tr> <Tr> <Td> java.net </Td> <Td> -- networking operations , sockets , DNS lookups , ... </Td> </Tr> <Tr> <Td> java. security </Td> <Td> -- key generation , encryption and decryption </Td> </Tr> <Tr> <Td> java. sql </Td> <Td> -- Java Database Connectivity ( JDBC ) to access databases </Td> </Tr> <Tr> <Td> java. awt </Td> <Td> -- basic hierarchy of packages for native GUI components </Td> </Tr> <Tr> <Td> java. text </Td> <Td> -- Provides classes and interfaces for handling text , dates , numbers , and messages in a manner independent of natural languages . </Td> </Tr> <Tr> <Td> java. rmi </Td> <Td> -- Provides the RMI package . </Td> </Tr> <Tr> <Td> java. time </Td> <Td> -- The main API for dates , times , instants , and durations . </Td> </Tr> <Tr> <Td> java. beans </Td> <Td> -- The java. beans package contains classes and interfaces related to JavaBeans components . </Td> </Tr> </Table>
all standard classes of java are included within a package called
all standard classes of java are included within a package called
java. util
java. util