商店管理系统

/**
 * @outhor chenlong
 * @date 2021/4/14 {TIME}
 **/
public class sdgl {

    /**
     * 商品的类
     */
    public static class Article {
        public String name; //商品名称
        public int amount;  //商品库存数量
        public double price; //商品价格
        public int number; //商品出售数量
        /*
           书籍信息展示
        */
        public void print(int index){
            System.out.println(index + "\t" + name + "\t" + price +"\t" + amount + "\t" + number);
        }
    }
}

/**
 * @outhor chenlong
 * @date 2021/4/14 {TIME}
 **/
public class ArticleSet {
    public static sdgl.Article[] articles;
    /*
        商品合集（仓库）
     */
    sdgl.Article[] articlse = new sdgl.Article[24];
}

import java.util.Scanner;

/**
 * @outhor chenlong
 * @date 2021/4/14 {TIME}
 **/
public class ArticleManage {
    /*
  管理类
*/
    // 创建一个实体的仓库对象，并初始化
    ArticleSet articleSet = new ArticleSet();
    Scanner input = new Scanner(System.in);

    /*
       初始化商品
     */
    public void initial() {
        sdgl.Article xiaomi6 = new sdgl.Article();
        xiaomi6.name = "小米6";
        xiaomi6.price = 648;
        xiaomi6.amount = 1000;
        xiaomi6.number = 0;
        sdgl.Article mik30pro = new sdgl.Article();
        mik30pro.name = "红米k30pro";
        mik30pro.price = 1999;
        mik30pro.amount = 2000;
        mik30pro.number = 0;
        sdgl.Article xiaomi11 = new sdgl.Article();
        xiaomi11.name = "小米11";
        xiaomi11.price = 3999;
        xiaomi11.amount = 1000;
        xiaomi11.number = 0;
        sdgl.Article heisha4 = new sdgl.Article();
        heisha4.name = "黑鲨4";
        heisha4.price = 3999;
        heisha4.amount = 1000;
        heisha4.number = 0;
        articleSet.articlse[0] = xiaomi6;
        articleSet.articlse[1] = mik30pro;
        articleSet.articlse[2] = xiaomi11;
        articleSet.articlse[3] = heisha4;
    }


    /*
      菜单切换
   */
    public void startMenu() {
        boolean flag = true;//是否继续操作
        do {
            System.out.println("欢迎使用商店管理系统");
            System.out.println("---------------------------------------");
            System.out.println("1.查看商店信息");
            System.out.println("2.新增商品");
            System.out.println("3.删除商品");
            System.out.println("4.购买商品");
            System.out.println("5.卖出商品");
            System.out.println("6.退出");
            System.out.println("---------------------------------------");
            System.out.println("请选择要执行的操作：");

            int choice = input.nextInt();
            switch (choice) {
                case 1:
                    System.out.println("查看商品信息");
                    break;
                case 2:
                    System.out.println("新增商品");
                    break;
                case 3:
                    System.out.println("删除商品");
                    break;
                case 4:
                    System.out.println("购买商品");
                    break;
                case 5:
                    System.out.println("卖出商品");
                    break;
                case 6:
                    System.out.println("谢 谢 使 用！");
                    flag = false;
                    break;
                default:
                    System.out.println("输入不符合要求请重新选择！");
                    break;
            }
        } while (flag);
    } public void search(){
        System.out.println("编号\t名称\t价格\t库存\t售出");
        for (int i = 0; i < ArticleSet.articles.length; i++) {
            if (ArticleSet.articles[i] != null) {
                ArticleSet.articles[i].print(i + 1);

            }
        }

        /**
         * 查看商品信息
         */
    }public void add(){
        System.out.println("请输入商品名称");
        String name = input.next();
        System.out.println("请输入价格");
        int price = input.nextInt();
        System.out.print("请输入库存：");
        int amount = input.nextInt();
        sdgl.Article article = new sdgl.Article();
        article.name = name;
        article.price = price;
        article.amount = amount;
        article.number = 0;
        for (int i = 0 ; i < articleSet.articlse.length; i++){
            if (articleSet.articlse[i] == null){
                articleSet.articlse[i] =article;
                break;
            }
        }

        /**
         *卖出商品
         */
    }public void delete() {
        System.out.println("请输入商品名称：");
        boolean flag = true ; //是否卖出成功
        int card = input.nextInt();
        for (int i = 0; i < articleSet.articlse.length;i++){
            if (articleSet.articlse[i]!= null&&(i+1)==card){
                int j=i;
                while (articleSet.articlse[j+i]!=null){
                    articleSet.articlse[j]=articleSet.articlse[j+i];
                    j++;
                }
                articleSet.articlse[j] = null;
                flag = true;
                break;
            }else {
                flag = false;
            }
        }
        if (flag){
            System.out.println("卖出成功");
        }else {
            System.out.println("卖出失败，号码错误，请重新操作！");
        }



    }public void leaderboard() {
        sdgl.Article[] articles = new sdgl.Article[50];
        for (int i = 0; i < articles.length; i++) {
            if (ArticleSet.articles[i] != null) {
                articles[i] = ArticleSet.articles[i];
            }
        }
        for (int i = 0; i < articles.length - 1; i++) {
            for (int j = 0; j < articles.length - i - 1; j++) {
                if (articles[j].number < articles[j + 1].number) {
                    sdgl.Article temoArticle = articles[j];
                    articles[j] = articles[j + 1];
                    articles[j + 1] = temoArticle;
                }
            }
        }
        System.out.println("*******************************");
        System.out.println("名次\t销售量\t商品名称");
        for (int i = 0 ; i < articles.length;i++){
            if (articles[i]!= null){
                System.out.println( + 1 + " \t" +articles[i].number + "\t"+ articles[i].name);

            }
        }
    }

}