FileOutputStream(文件，追加)在写入时不追加

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

public class AppendToFileExample {
    public static void main(String[] args) {
        String filename = "example.txt";
        String content = "This is the appended content.";

        try {
            FileOutputStream fos = new FileOutputStream(filename, true);
            fos.write(content.getBytes());
            fos.close();
            System.out.println("Content appended to the file.");
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}