正确生成RandomAccessFile对象的语句的是
A．File f=new File("readFile"); RandomAccessFile raF=new RandomAccessFile(;
B．RandomAccessFile raF=new RandomAccessFile(d:\mydir\File3.txt,"rw");
C．RandomAccessFile raF=new RandomAccessFile("readwriteFile","rw");
D．RandomAccessFile raF=new RandomAceessFile("readwriteFile" ,r;