public int savenow(){

		try{
			ObjectOutputStream oob = new ObjectOutputStream(new FileOutputStream("bookcollection.txt"));
			oob.writeInt(this.getBookCount());
			for(int i = 0; i<this.getBookCount() ; i++){
				oob.writeObject(collectionb.elementAt(i));
			}
			oob.close();
		}catch(IOException e){
			//  ׳ ѾѴ. ϳ  ٴ ǹ̹Ƿ..
		}
		return 1;
	}