import *;
class CopyOfData_input_output
{
    public static void main(String args[]) throws  IOException
    {   
        FileOutputStream fos=new FileOutputStream("b.txt");//打开一个输出文件
        DataOutputStream dos=new DataOutputStream (fos);//数据输出流
        try{ dos.writeBoolean(true);
               dos.writeByte((byte)123);
               dos.writeLong(998877665544332211L);
               dos.writeShort((short)11223);
            }
       finally
           {  dos.close(); }
         DataInputStream dis=new DataInputStream(new FileInputStream("b.txt"));//数据输入流
       try{ System.out.println("\t "+dis.readBoolean());
            System.out.println("\t "+dis.readByte());
            System.out.println("\t "+dis.readLong());
            System.out.println("\t "+dis.readShort());
          }
       finally
       {dis.close();}
}
  }

  为什么写入b.txt的是  ”
{芄裉譪? “  呢 ？

刚刚学习java..............
非常不懂,嘿嘿.

用Reader/Writer这类的字符流.
怎么写呢？