在J2EE中，下面的代码中出现编译错误的是()。

A、Filef=newFile("/","autoexec.bat");

B、DataInput Streamdin=new Data Input Stream(new File Input Stream("autoexec.bat"));

C、Input Stream Readerin=new Input Stream Reader(System.in);

D、Output Stream Writer out=new Output Stream Writer(System.in);