递归方法不适用于FileWriter

import java.io.FileWriter;
import java.io.IOException;

public class FileWriterExample {
    public static void main(String[] args) {
        FileWriter writer = null;
        try {
            writer = new FileWriter("example.txt");
            String content = "This is an example.";
            for (int i = 0; i < content.length(); i++) {
                writer.write(content.charAt(i));
            }
            System.out.println("File write successful.");
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            try {
                if (writer != null) {
                    writer.close();
                }
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }
}