试题详情

在下列程序的空白处,应填入的正确选项是: import java.io.*; pulilc class ObjectStreamTest{   publilc static void main(string args[]) throws IOException{     ObjectOutputStream oos= new ObjectOutputStream (new FileOutputStream("serial.bin"));     java.util.Date d= new Java.util.Date();     oos. ______ (d);     ObjectInputStream ois= new ObjectInputStream(new FileOutputStream("serial.bin"));     try{       java.util.date restoredDate = (java.util.Date) ois.readObject();       System.out.println ("read object back from serial.bin file:" + restoredDate);     }catch (ClassNotFoundException cnf) {       System.out.println ("class not found");     }   } }

AWriterObject

BWriter

CBufferedWriter

DwriteObject