单项选择题
Which code， inserted at line 14， will allow this class to correctly serialize and deserialize？（）
A.s.defaultReadObject（）； B.this = s.defaultReadObject（）； C.y = s.readInt（）； x = s.readInt（）； D.x = s.readInt（）； y = s.readInt（）；
Given that the current directory is empty， and that the...
Given that the current directory is empty， and that the user has read and write permissions， and the following： Which statement is true？（）
A.Compilation fails. B.The file system has a new empty directory named dir. C.The file system has a new empty directory named newDir. D.The file system has a directory named dir， containing a file f1.txt. E.The file system has a directory named newDir， containing a file f1.txt.
Whichcapabilityexistsonlyinjava.io.BufferedWriter？（）A.C...
单项选择题Which capability exists only in java.io.BufferedWriter？（）
A.Closing an open stream. B.Flushing an open stream. C.Writing to an open stream. D.Writing a line separator to an open stream.
Assuming that the serializeBanana() and the deserialize...
Assuming that the serializeBanana() and the deserializeBanana() methods will correctly use Java serialization and given： What is the result？（）
A.restore 400 B.restore 403 C.restore 453 D.Compilation fails. E.An exception is thrown at runtime.
