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private void writeFile(){
OutputStream out = null;
try {
out=new FileOutputStream(filename);
} catch (FileNotFoundException e) {
e.printStackTrace();
}
OutputStreamWriter writer = null;;
writer = new OutputStreamWriter(out);
BufferedWriter bw=new BufferedWriter(writer);
PrintWriter pw=new PrintWriter(bw,true);
pw.write(text);
pw.close();
}