java 写入文件方法

/**
  *@author :Haitor
  *@since  :2007-01-31
  *@descript:write someting  to  file
  *@param String filename: file  name
  *@param String msg : what you want to  write to file
  *@param boolean i   :true or  false
  *                    (write to end)  or (write to head)
  **/
 public static void writeToFile( String filename ,String msg,boolean i )
 {
  try {
   File file = new File(filename);
   if(!file.exists())
   {
       file.createNewFile();
   }
   
   if(file.isFile() && file.canRead() && file.canWrite())
   {
      FileWriter fw = new FileWriter(filename, i);
      fw.write(msg);
      fw.close();
   }
  }catch (Exception e) {
           System.out.println(e.toString());
        }
 }
 public static void writeToFile( String filename ,String msg )
 {
  try {
   File file = new File(filename);
   if(!file.exists())
   {
       file.createNewFile();
   }
   
   if(file.isFile() && file.canRead() && file.canWrite())
   {
      FileWriter fw = new FileWriter(filename, false);
      fw.write(msg);
      fw.close();
   }
  }catch (Exception e) {
           System.out.println(e.toString());
        }
 }