Java 【食品库存管理】

一.食品类

//食品类
 class Food{
     private String coding; //编码
     private String name; //名称
     private double price; //价格
  
    Food(String coding,String name,double price){
         this.coding = coding;
         this.name = name;
         this.price = price;
    }

    public String getCoding(){
        return coding;
    }
    public void setCoding(String coding){
        this.coding = coding;
    }
     public String getName(){
       return name;
    }
    public void setName(String name){
        this.name = name;
    }
     public double getPrice(){
         return price;
    }
    public void setPrice(double price){
          this.price = price;
    }

 }

二.管理类

 //管理类
 class Manage{
     private ArrayList<Food> obj=null;
    
    Manage(){ //构造方法
        obj = new ArrayList<Food>();
    }
    public void addFood(Food food){ //普通方法
         obj.add(food);
         System.out.println("添加食品成功!");
    }
    public void spInfo(String coding){
        int i;
        for(i=0;i<obj.size();i++){
            Food sp = (Food)obj.get(i);
            if(sp.getCoding().equals(coding)){
                 System.out.println("该食品的信息:");
                 System.out.println("食品名称:"+sp.getName());
                 System.out.println("食品编号:"+coding);
                 System.out.println("食品价格:"+sp.getPrice());
                 break;
            }
        }
        if(i == obj.size()){
            System.out.println("对不起,没有此商品!");
        }
    }
    public void foodFix(String coding,double price){
         int i;
         for(i=0;i<obj.size();i++){
               Food sp = (Food)obj.get(i);
               if(sp.getCoding().equals(coding)){
                     sp.setPrice(price);
                     System.out.println("修改食品价格成功!");
                     break;
               }
         }
         if(i == obj.size()){
               System.out.println("没有找到相应的商品,修改失败!");
         }
       }
    public void foodDel(String coding){
              int i;
              if(obj.size()==0){
                      System.out.println("没有库存,请库存！");
              }
              for(i=0;i<obj.size();i++){
                    Food sp = (Food)obj.get(i);
                   if(sp.getCoding().equals(coding)){
                       obj.remove(i);
                       System.out.println("删除食品成功!");
                       break;
                  }
              }
              if((i==obj.size()) && (obj.size()!=0)){
                    System.out.println("对不起,没有此商品!");
              }
       }    
  }

管理类

import java.util.*; import java.io.*; public class Jar{ public static void main(String[] args) throws Exception{ Manage foods = new Manage(); //将键盘作为数据流接收 //BufferedReader data = new BufferedReader(new InputStreamReader(System.in)); Scanner data = new Scanner(System.in); while(true){ System.out.println("请按照提示选择:"); System.out.println("添加食品:1"); System.out.println("查找食品:2"); System.out.println("修改食品价格:3"); System.out.println("删除食品:4"); System.out.println("退出:0"); String str = data.next(); //读取一行 if(str.equals("1")){ System.out.println("请输入商品编号"); String coding = data.next(); System.out.println("请输入商品名称"); String name = data.next(); System.out.println("请输入商品价格"); double price = data.nextDouble(); Food food = new Food(coding,name,price); foods.addFood(food); } else if(str.equals("2")){ System.out.println("请输入商品编号"); String coding = data.next(); foods.spInfo(coding); } else if(str.equals("3")){ System.out.println("请输入商品编号"); String coding = data.next(); System.out.println("请输入商品价格"); double price = data.nextDouble(); foods.foodFix(coding,price); } else if(str.equals("4")){ System.out.println("请输入商品编号"); String coding = data.next(); foods.foodDel(coding); } else if(str.equals("0")){ System.out.println("感谢使用,下次再见!"); System.exit(0); }else{ System.out.println("输入有误"); } } } }

一.食品类

二.管理类

三.逻辑实现

相关推荐