單項(xiàng)選擇題

Which constructs a BufferedIputStream？（）

A. New BufferedInputStream（“in.txt”）；
B. New BufferedInputStream（new File（“in.txt”））；
C. New BufferedInputStream（Writer（“in.txt”））；
D. New BufferedInputStream（new Writer（“in.txt”））；
E. New BufferedInputStream（new InputStream（“in.txt”））；
F. New BufferedInputStream（new FileInputStream（“in.txt”））；

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多項(xiàng)選擇題

Which two construct an OutputSream that appends to the file “file.txt”？（）

A. OutputStream out=new FileOutputStream（“file.txt”）；
B. OutputStream out=new FileOutputStream（“file.txt”， “append”）；
C. FileOutputStream out=new FileOutputStream（“file.txt”， true）；
D. FileOutputStream out=new FileOutputStream（new file（“file.txt”））；
E. OutputStream out=new FileOutputStream（new File（“file.txt”）true）；

多項(xiàng)選擇題

Which two create an InputStream and open file the “file.txt” for reading？（）

A. InputStream in=new FileReader（“file.txt”）；
B. InputStream in=new FileInputStream（“file.txt”）；
C. InputStream in=new InputStreamFileReader （“file.txt”， “read”）；
D. FileInputStream in=new FileReader（new File（“file.txt”））；
E. FileInputStream in=new FileInputStream（new File（“file.txt”））；

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Which constructs a BufferedIputStream？（）

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Which two construct an OutputSream that appends to the file “file.txt”？ （）

Which two create an InputStream and open file the “file.txt” for reading？ （）

Which two construct an OutputSream that appends to the file “file.txt”？（）

Which two create an InputStream and open file the “file.txt” for reading？（）