file writer doesn't work

Question

I use a FileWriter and a BufferWriter to write in a file. The file \"test.txt\" is created but nothing is written inside.

The file should be written in the ActionEve

Answer 1

Close or flush the writer:

FileWriter fw = new FileWriter("test.txt");
BufferedWriter out = new BufferedWriter(fw);
out.write("aString");
out.close();