/**
 * 商品物件類
 *  自定義類 Article
 */
public class Article {
    // 名字 單價 庫存 已賣數(shù)量
    public String name;
    public double price;
    public int amount;
    public int number;

    public void print( int index ) {
        System.out.println(index +"\t" + name + "\t" + price
                            + "\t" + amount + "\t" + number );

    }

    public void setArticle(String mingzi , double danjia , int kucun , int yishou){
        name = mingzi;
        price = danjia;
        amount = kucun;
        number = yishou;
    }