import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
public class Main {
    public static void main(String[] args) {
        FileOutputStream fileOutputStream = null;
        try {
            fileOutputStream = new FileOutputStream("C:\\Users\\31339\\Desktop\\新建文件夹 (7)\\fileoutstreamtwoquestions\\111.txt", true);
            fileOutputStream.write("111".getBytes());
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            if (fileOutputStream != null) {
                try {
                    fileOutputStream.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
    }
}