java生成.dat文件并写入数据

 

 
 

/**

* @param args

*/

   public static void main(String s[]) {

    try {

    String url = "F:\\gsm\\";

    String FileName = "info.dat";

    File file = new File(url);

    file.mkdirs();//创建文件夹

    File fil = new File(url);

     fil.createNewFile();

 

 

     FileWriter fileWriter=new FileWriter(url+FileName);

      fileWriter.write("gsmc");//写入文件

      fileWriter.close();

   } catch (IOException e) {

     e.printStackTrace();

   }

  }

}