多项选择题
A.Objects from classes that use aggregation cannot be serialized
B.An object serialized on one JVM can be successfully deserialized on a different JVM
C.The values in fields with the volatile modifier will NOT survive serialization and deserialization
D.The values in fields with the transient modifier will NOT survive serialization and deserialization
E.It is legal to serialize an object of a type that has a supertype that does NOT implement java.io.Serializable
单项选择题 Given that the current directory is empty， and that the user has read and write privileges to the current directory， and the following： Which statement is true？（）
单项选择题 If the user types the password aiko when prompted， what is the result？（）
问答题 Place the Fragments into the program， so that the program will get lines from a text file. display them， and then close all the resources.