android -将文件保存到内部存储

import android.content.Context;
import java.io.FileOutputStream;
import java.io.IOException;

public class FileUtils {
    public static void saveFileToInternalStorage(Context context, String fileName, String fileContent) {
        FileOutputStream fileOutputStream = null;
        try {
            fileOutputStream = context.openFileOutput(fileName, Context.MODE_PRIVATE);
            fileOutputStream.write(fileContent.getBytes());
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            if (fileOutputStream != null) {
                try {
                    fileOutputStream.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
    }
}

String fileName = "example.txt";
String fileContent = "Hello, Internal Storage!";
FileUtils.saveFileToInternalStorage(this, fileName, fileContent);