android手机内存创建文件夹,Android在内存问题中创建文件夹

我在内部存储器中为我的应用程序创建文件夹时遇到了一些问题.我正在使用这段代码：

public static void createFoldersInInternalStorage(Context context){

try {

File usersFolder = context.getDir("users", Context.MODE_PRIVATE);

File fileWithinMyDir = new File(usersFolder, "users.txt"); //Getting a file within the dir.

FileOutputStream out = new FileOutputStream(fileWithinMyDir); //Use the stream as usual to write into the file.

File dataFolder = context.getDir("data", Context.MODE_PRIVATE);

File fileWithinMyDir2 = new File(dataFolder, "data.txt"); //Getting a file within the dir.

FileOutputStream out2 = new FileOutputStream(fileWithinMyDir2); //Use the stream as usual to write into the file.

File publicFolder = context.getDir("public", Context.MODE_PRIVATE);

File fileWithinMyDir3 = new File(publicFolder, "public.txt"); //Getting a file within the dir.

FileOutputStream out3 = new FileOutputStream(fileWithinMyDir3); //Use the stream as usual to write into the file.

} catch(FileNotFoundException e){

e.printStackTrace();

}

}

因此创建文件夹但在其名称前面有“app_”开头：app_users,app_data,app_public.有没有办法用我给出的名字创建文件夹？另一个问题：我想首先创建文件夹文件,而不是所有其他文件夹“数据,公共,用户”….最后一个问题：如果我想创建一个文件,我怎么能给出正确的文件夹路径内存中的Documents / Users / myfile.txt？

提前致谢！