java 字符流 读写

在字节流中，读写是分开写的，这次写在一起了

class Test

{

    public static void main(String [] args)

   {

          FileReader r=null;

          FileWriter w=null;

          try

         {

               r=new FileReader("路径");

               w=new FileWriter("路径");

               char [] buffer=new buffer[1024];

               while(true)

               {

                     int temp=r.read(buffer,0,buffer.length);

                     if(temp==-1)

                     {

                          break;

                     }

                     w.write(buffer,0,temp);

               }

         }

         catch(Exception e)

        {

              e.printStackTrace();

        }

        finally

        {

            try

            {

                    r.close();

                    s.close();

            }

            catch(Exception e)

            {

                     System.out.println(e);

            }

        }

   }

}