A.java.sys包B.java.lang包C.java.util包D.以上都不是
A.FileInputStream in=new FileInputStream("file.dat");in.skip(9);intc=in.read() B.FileInputStream in=new FileInputStream("file.dat");in.skip(10);intc=in.read() C.FileInputStream in=new FileInputStream("file.dat");intc=in.read() D.RandomAccessFile in=new RandomAccessFile("file.dat");in.skip(9);intc=in.readByte()
A.byte=128; B.Boolean=null; C.longl=0xfffL; D.double=0.9239d;