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I used notepad... And it should be the reason for this problem.

Now the question is almost solved, because when i copy the result to somewhere else, then I can see that '\n' works.

XDD
...

btw, i'm a totally fresh... just start JAVA coding yesterday... :-D

import java.util.Formatter;
import java.io.File;
import java.io.FileNotFoundException;

public class EgWriteToFile1
{
public static void main(String[] args)
throws FileNotFoundException
{...