Fail to write the text file

Question

hi,
I met a problem when I try to store data to text file. That's the description:
- To read some objects from the binary file
- To update object state, do some operations
- To output some properties of the object to text format file.
That's a part of my code:
{color:#0000ff}
//------ begin ---------//
// ".cluto" is a binary file where store the number of objects as the first object and a set of docVector object
File cluto = new File (config3.getOutputPath (), config3.getOutputFileType () + ".cluto");
ObjectInputStream reader1 = new ObjectInputStream (new BufferedInputStream (new FileInputStream (cluto), BUFFERSIZE));
// output text file definition
File rlabel = new File (config3.getOutputPath (), config3.getOutputFileType () + ".rlabel");
BufferedWriter rlabelWriter = new BufferedWriter (new FileWriter (rlabel), BUFFERSIZE);
// get the first object in ".cluto", the number of objects in the input binary file
Integer vectorNumber = (Integer)reader1.readObject ();
// temporal variable
docVector tVector;
for(int i=0; i<vectorNumber.intValue (); i++) {
tVector = (docVector)reader1.readObject ();
tVector.dimsPruning ();
tVector.updateDimsWeight (config1.getWEIGHT_TYPE ());
rlabelWriter.write (tVector.vectorLableToString ()); // tVector.vectorLabelToString() return a string!
reader1.close ();
rlabelWriter.flush ();
rlabelWriter.close ();
//------ end --------//
{color}
The program works and creates the file ".rlabel", but a binary file instead of text file! Anyone have ideas about this problem?
Thanks

Answer 1

Sorry, I means ".rlabel".
Good news, I fix the problem. In my old code, the I/O stream keeps always opened when I write huge data to the file (See "for" loop). And after the loop, I close the stream.
Now, I open and close the stream in each loop. The problem is resolved.
that's the new code:
// this function is used to write a string to a file
/* write a string to a file */
public void writeStringToFile (String content, String fileName) {       
BufferedWriter writer = null;
try {
writer = new BufferedWriter (new FileWriter (fileName, true));
writer.write (content);
writer.close ();
} catch (IOException ex) {
ex.printStackTrace ();
String rlabel = "test.rlabel";
for(int i=0; i<vectorNumber.intValue (); i++) {
tVector = (docVector)reader1.readObject ();
tVector.dimsPruning (prunedTerm);
writeStringToFile (tVector.vectorLableToString (), rlabel);
//------- end ----------//
I don't know whether the open/close operations in a large loop cost a lot.
Thanks