consoleborrowrecordwriter.java

图书馆借阅系统小样例

package booksystem.console;

import java.util.Iterator;

import booksystem.BookRecord;
import booksystem.BorrowRecord;
import booksystem.IBorrowRecordWriter;

//将借阅记录写到控制台的类，实现写借阅记录接口
public class ConsoleBorrowRecordWriter implements IBorrowRecordWriter {

	@Override
	public boolean writeBorrowRecord(BorrowRecord borrowrecord) {
		BorrowRecord b=borrowrecord;
		System.out.println("********************************");
		System.out.println("借书人："+b.getReader().getName());
		System.out.println("********************************");
		double totalmoney=0;
		for(Iterator<BookRecord> i=b.getBookrecords().iterator();i.hasNext();)
		{
			BookRecord br=i.next();
			System.out.println("书名："+br.getBook().getBookName());
			System.out.println("类别："+br.getBook().getBookType().getName()+"\t价格（元/天）:"+br.getBook().getBookType().getPricePerDay());
			System.out.println("借阅天数："+br.getBorrowDays());
			double money=br.getBorrowDays()*br.getBook().getBookType().getPricePerDay();
			money*=100;
			money=(int)money;
			money/=100;
			System.out.println("金额："+money);
			totalmoney+=money;
			System.out.println();
		}
		System.out.println("总金额："+totalmoney);
		System.out.println("********************************");
		return true;
	}

}