單項(xiàng)選擇題

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（）；

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單項(xiàng)選擇題

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.

單項(xiàng)選擇題

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.

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Which code， inserted at line 14， will allow this class to correctly serialize and deserialize？（）

你可能感興趣的試題

Given that the current directory is empty， and that the user has read and write permissions， and the following： Which statement is true？（）

Which capability exists only in java.io.BufferedWriter？（）

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Which code， inserted at line 14， will allow this class to correctly serialize and deserialize？（）

Given that the current directory is empty， and that the user has read and write permissions， and the following：

Which statement is true？（）

Which capability exists only in java.io.BufferedWriter？（）