商店管理

package edu.xcdq.Demo406;

import java.util.Scanner;

/**

• 商品管理员
  */
  public class ArticleManade {
  //创建一个实体的仓库对象，并初始化
  ArticleSet articleSet = new ArticleSet();

  //初始化仓库，放入初始商店
  public void initial(){
  Article xiaomi11 = new Article();
  xiaomi11.setArticle("小米11" , 30 , 1999 , 0);

   Article xiaomi11pro = new Article();
   xiaomi11pro.setArticle("小米11pro",40 ,2999,0);
  
   Article xiaomiUltra = new Article();
   xiaomiUltra.setArticle("小米增强版",50,3999,0);
  
   articleSet.articles[0] = xiaomi11;
   articleSet.articles[1] = xiaomi11pro;
   articleSet.articles[2] = xiaomiUltra;
  

  }
  public void startMenu (){
  boolean flag = true;
  do {
  System.out.println("*****************************");
  System.out.println("1 查看商品信息");
  System.out.println("2 新增商品信息");
  System.out.println("3 删除商品信息");
  System.out.println("4 卖出商品");
  System.out.println("5 排行榜");
  System.out.println("6 退出");
  System.out.println("******************************");

       Scanner scanner = new Scanner(System.in);
       System.out.println("请输入你要执行的功能");
       int funNo = scanner.nextInt();
       switch (funNo){
           case 1 -> {System.out.println("1 查看商品信息"); chakan();}
           case 2 -> {System.out.println("2 新增商品信息"); add();}
           case 3 -> {System.out.println("3 删除商品信息"); delete();}
           case 4 -> {System.out.println("4 卖出商品信息"); sell();}
           case 5 -> {System.out.println("5 销售排行榜"); paihangbang();}
           case 6 -> {System.out.println("6 退出"); flag = false; break;}
       }
   }while (flag);
  

  }
  public void paihangbang(){
  //排序 （冒泡排序）
  for ( int i = 0; i < articleSet.articles.length - 1 ; i++ ){
  for ( int j = 0; j < articleSet.articles.length - i - 1 ; j ++){
  // 如果当前元素的值比后面的元素值小，那么和后面的元素位置交换位置
  if ( articleSet.articles[ j ] != null && articleSet.articles[j+1].number ){
  if ( articleSet.articles[j].number < articleSet.articles[j+1].number){
  //交换位置
  Article tempArticle = articleSet.articles[j];
  articleSet.articles[j] = articleSet.articles[j+1];
  articleSet.articles[j+1] = tempArticle;
  }
  }
  }
  }
  //打印排行榜
  System.out.println("**********排行榜**********");
  System.out.println("名次 \t 销售数量 \t 商品品种");
  for ( int i = 0 ; i < articleSet.articles.length; i++){
  if ( articleSet.articles[i] !=null ){
  System.out.println( (i+1) + "\t" + articleSet.articles[i].number + "\t" + articleSet.articles[i].name);
  }
  }
  }
  public void sell(){
  System.out.println("请输入你要售卖的商品名称：");
  Scanner scanner = new Scanner(System.in);
  String name = scanner.next();
  for (int i = 0 ; i < articleSet.articles.length; i++){
  if ( (articleSet.articles[i].name).equals(name) ) {
  System.out.println("请输入你要售卖的数量：");
  int shoumai = scanner.nextInt();
  if ( shoumai < articleSet.articles[i].amount){
  articleSet.articles[i].amount = articleSet.articles[i].amount - shoumai ;
  articleSet.articles[i].number = articleSet.articles[i].number + shoumai ;
  }
  System.out.println("售卖成功");
  break;
  }
  }
  }
  public void delete(){
  System.out.println("请输入你要删除的商品编号：");
  Scanner scanner = new Scanner(System.in);
  int delNo = scanner.nextInt();
  for (int i = 0 ; i < articleSet.articles.length; i ++){
  if ( articleSet.articles[i] !=null ){
  int j = i ;
  while ( articleSet.articles[j+1] !=null ){
  articleSet.articles[j] = articleSet.articles[j+1];
  j++;
  }
  articleSet.articles[i] = null;
  System.out.println("删除成功");
  break;
  }
  }
  }
  public void chakan(){
  System.out.println("编号 \t 名称 \t 单价 \t 库存 \t 已售");
  for ( int i = 0; i < articleSet.articles.length; i++){
  if ( articleSet.articles[i] !=null ){
  articleSet.articles[i].print(i+1);
  }
  }
  }
  public void add(){
  System.out.println("请输入商品名称：");
  Scanner scanner = new Scanner(System.in);
  String name = scanner.next();
  System.out.println("输入价格：");
  double price = scanner.nextDouble();
  System.out.println("输入库存：");
  int cukun = scanner.nextInt();
  System.out.println("已卖出数量：");
  int maichu = scanner.nextInt();

   Article newArticle = new Article();
   newArticle.setArticle(name , (int) price, cukun , maichu);
  
   for ( int i = 0 ; i < articleSet.articles.length; i++){
       if (articleSet.articles[i] == null ){
           articleSet.articles[i] = newArticle;
           break;
       }
   }
  

  }

}