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Core Java - Interview Questions and Answers for 'Bufferedwriter' - 3 question(s) found - Order By Newest

 Q1. Tell something about BufferedWriter ? What are flush() and close() used for ?
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Ans. BufferedWriter is temporary source for data storage.BufferedWriter is used to write character data to the file.Flush() is method available in B.W which ensures that all data items are written to file including last character.Close() is used to closes the character output stream.

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   Like         Discuss         Correct / Improve     java   java io   input output   file handling   file io   output stream   bufferedwriter   flush   close


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 Q2. Which of the following code is correct ?

a.


FileWriter fileWriter = new FileWriter("../file.txt");
File file = new File(fileWriter );
BufferedWriter bufferedOutputWriter = new BufferedWriter(fileWriter);

b.

BufferedWriter bufferedOutputWriter = new BufferedWriter("../file.txt");
File file = new File(bufferedOutputWriter );
FileWriter fileWriter = new FileWriter(file);


c.

File file = new File("../file.txt");
FileWriter fileWriter = new FileWriter(file);
BufferedWriter bufferedOutputWriter = new BufferedWriter(fileWriter);

d.

File file = new File("../file.txt");
BufferedWriter bufferedOutputWriter = new BufferedWriter(file);
FileWriter fileWriter = new FileWriter(bufferedOutputWriter );
Core Java
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info@buggybread.com
Ans. c.

File file = new File("../file.txt");
FileWriter fileWriter = new FileWriter(file);
BufferedWriter bufferedOutputWriter = new BufferedWriter(fileWriter);

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   Like         Discuss         Correct / Improve     java   io   file   fileio   coding   code   filewriter   bufferedwriter   scjp   ocjp  file handling


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 Q3. How and when the Buffer is cleared when using Buffered Writer Classes ?Core Java2016-08-08 11:26:13

Ans. Buffer is cleared in 2 circumstances, i.e 1. naturally when the buffer is filled and 2. explicitly when the method flush is called ( for flushing the residual )

Ideally we just need to call flush once at the end of file writing so that the residual content should be dumped to file.

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   Like         Discuss         Correct / Improve     BufferedWriter  Writer  PrintWriter  File io  flush  file handling


Related Questions

  Tell something about BufferedWriter ? What are flush() and close() used for ?
 Difference between save and flush in Hibernate ?
 Have you ever faced any problem because of PrintWriter buffer and autoflush mechanism ? How did you got rid of it ?
 Can we disable auto flushing for PrintWriter ?



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