bookdb.java

来自「jsp 应用开发技术光盘 是《jsp应用开发技术》这本书的源代码」· Java 代码 · 共 54 行

package ch08.bookstore;

import java.util.*;

/**
 * 图书类，存放本站点的所有图书 
 */
public class BookDB {
	private ArrayList books;
	
	//构造函数，把所有图书放入books链表
	public BookDB(){	
		books=new ArrayList();
		
		BookDetails book;
		
		book=new BookDetails("11","JSP应用开发技术");
		books.add(book);
		
		book=new BookDetails("12","Linux入门与提高");
		books.add(book);
		book=new BookDetails("13","计算机网络");
		books.add(book);
		book=new BookDetails("14","鲁迅全集");
		books.add(book);
		book=new BookDetails("15","古文观止");
		books.add(book);
		book=new BookDetails("16","穆斯林的葬礼");
		books.add(book);
		book=new BookDetails("17","大学物理");
		books.add(book);
		book=new BookDetails("18","核物理");
		books.add(book);
		book=new BookDetails("19","有机化学");
		books.add(book);
		book=new BookDetails("20","无机化学");
		books.add(book);
	}
	/*
	 * 根据bookID，得到BookDeatils对象
	 */
	public BookDetails getBook(String bookID){
		if(bookID==null) return null;
		
		for(Iterator iter=books.iterator();iter.hasNext();){
			BookDetails book=(BookDetails)iter.next();
			if((book.getBookID()).equals(bookID)){
				return book;
			}
		}
		return null;
	}
}