import java.io.File;
import java.io.IOException;
import java.io.FileOutputStream;

public class OpenedFile {
  public static void main(String[] argv) throws IOException {
	File fo = new File("fo.txt");
	if (!fo.exists()) {
	  fo.createNewFile();
	}
	FileOutputStream fos = new FileOutputStream(fo);
	fos.write("Line 1\n".getBytes());
	fos.write("Line 2\n".getBytes());
	while (true);
	fos.close();
  }
}