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File dir = new File(newDirName);
File[] files = dir.listFiles();
for (File file: files){
…
String path=file.getPath( );
String[] elems = path.split(“\”)
String ID = elems[elems.length -1];
…
}
DataOutputStream output = new DataOutputStream(new
BufferedOutputStream(new FileOutputStream(scoreFile)));
output.writeBytes(docid);