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

public class OSTest {
    public static void main(String[] args) {
        String text = "test";
        for (int i = 0; i < 11; i++) {
            String filename = "com" + i + ".txt";
            File file = new File(filename);
            FileOutputStream stream;

            try {
                stream = new FileOutputStream(file, true);
                stream.write(text.getBytes());

                stream.close();
                File cFile = new File(filename);
                if (cFile.exists()) {
                    System.out.println(filename + " = Success");
                } else {
                    System.out.println(filename + " = Incomplete");
                }
            } catch (IOException e) {
e.printStackTrace();
                System.out.println(filename + " = Failed");
            }
        }
    }
}