请问Stream关闭问题

我的一个程序中的Stream在一个循环后 后面的语句不执行 请问怎么解决
 public void read(String fname)
    {
        File f=new File(fname);
        try
        {
            FileInputStream fin=new FileInputStream(f);
            DataInputStream ois=new DataInputStream(fin);
            int i=ois.readInt(),p;
            while(i!=-1)
            {
                System.out.print(i);
                char ch;
                while((ch=ois.readChar())!='\n')
                {
                    if(ch!='#')
                        System.out.print(ch);
                    else
                        System.out.print(" ");
                }
                System.out.println();
                p=i;
                i=ois.readInt();//最后i的值无的话就异常抛出了 好像
            }
            
            System.out.println("dfsdfsd");//这里开始不执行
            fin.close();
            ois.close();
        }
        catch(IOException ioe){}    }