Most efficient way to write a string to a file

Question

Possible Duplicate:
How do I save a String to a text file using Java?

I want to add a reading from a machine to a file (Java). The reading will be in the form of a string that I have formatted. The file is just a text file. At the moment I am considering Filewriter/Buffered writer is this the correct one to use?

Usually the buffered readers are best but I would advise trying a couple of ways and then timing them. These things often have lots of factors affecting performance — RNJ, Oct 30 '12 at 08:40
What is a "reading"? Do you just want to write a string to a text file? — Jesper, Oct 30 '12 at 08:44

score 13 · Accepted Answer · answered Oct 30 '12 at 08:46

13

Use FileWriter will do you job.

BufferedWriter writer = new BufferedWriter( new FileWriter( yourfilename));
writer.write( yourstring);
// do stuff 
writer.close();

answered Oct 30 '12 at 08:46

Sumit Singh

24,095
8
74
100

score 7 · Answer 2 · answered Oct 30 '12 at 08:42

If you are planning to use the JDK alone, you might want to consider wrapping your BufferedWriter with a PrintWriter as in

PrintWriter printWriter=new PrintWriter(bufferedWriter);
printWriter.println(yourString);

The printWriter comes with a nice println method.

Or if you are free to use external libraries, try FileUtils writeStringToFile

score 1 · Answer 3 · edited Oct 30 '12 at 08:46

1

Yup. Use java.io.BufferedWriter.

edited Oct 30 '12 at 08:46

Sumit Singh

24,095
8
74
100

answered Oct 30 '12 at 08:43

Amit Sharma

5,294
5
24
33

Most efficient way to write a string to a file

3 Answers3