catalogorder.java

java编程开发技巧与实例的编译测试通过的所有例程

import java.util.*;
import java.io.*;

public class CatalogOrder implements Serializable
{
	private String name	=	null;
	private String credit	=	null;
	private String address	=	null;
	private LinkedList list	=	new LinkedList();
	private double totalCost = 0.0;
	public void setInfo(String _name, String _credit, String _address)
	{
		name = _name;
		credit = _credit;
		address = _address;
	}
	public boolean isComplete()
	{
		return ((!name.equals("")) && (!credit.equals("")) && (!address.equals("")));
	}
	public void add(CatalogItem item)
	{
		list.add(item);
		totalCost += item.price;
	}
	public String toString()
	{
		String s = "Total items: " + list.size() + "\n";
		s += "Total cost: $" + totalCost + "\n\n";
		for (Iterator iterator = list.iterator(); iterator.hasNext();)
			s += "Item " + ((CatalogItem)iterator.next()).getName() + "\n";
		return s;
	}
	public String exportData()
	{
		String s	=	name + "\t" + credit + "\t";
		StringTokenizer splitter	=	new StringTokenizer(address, "\n");
		while (splitter.hasMoreTokens())
			s += splitter.nextToken() + "|";
		s += "\t" + list.size() + "\t" + totalCost + "\t";
		for (Iterator iterator = list.iterator(); iterator.hasNext();)
			s += "Item " + ((CatalogItem)iterator.next()).getName() + "\t";
		return s;
	}
}