Java实现商品的查找、添加、出库、入库操作完整案例

本文实例讲述了Java实现商品的查找、添加、出库、入库操作。分享给大家供大家参考，具体如下：

package com.jredu.oopch08;
public class Goods1 {
    private int id;
    private String name;
    private double price;
    private String uom;
    private int balance;
    public Goods1(int id, String name, double price, String uom, int balance) {
 super();
 this.id = id;
 this.name = name;
 this.price = price;
 this.uom = uom;
 this.balance = balance;
    }
    public int getId() {
 return id;
    }
    public void setId(int id) {
 this.id = id;
    }
    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;
    }
    public String getUom() {
 return uom;
    }
    public void setUom(String uom) {
 this.uom = uom;
    }
    public int getBalance() {
 return balance;
    }
    public void setBalance(int balance) {
 this.balance = balance;
    }
}

package com.jredu.oopch08;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.Scanner;
import java.util.Set;
public class TestGoods1 {
    private static Map map = new HashMap<>();
    private static Scanner in = new Scanner(System.in);
    public static void get() {
 Goods1 goods1 = new Goods1(1001, "脉动水蜜桃 ", 7.0, "1.5l", 50);
 Goods1 goods2 = new Goods1(1002, "桃李熟切片 ", 6.5, "400g", 10);
 Goods1 goods3 = new Goods1(1003, "吉白芝麻油 ", 9.5, "125ml", 20);
 Goods1 goods4 = new Goods1(1004, "雀巢奶咖啡", 1.5, "13g", 200);
 Goods1 goods5 = new Goods1(1005, "白玉黄豆芽 ", 2.4, "350g", 50);
 map.put(goods1.getId(), goods1);
 map.put(goods2.getId(), goods2);
 map.put(goods3.getId(), goods3);
 map.put(goods4.getId(), goods4);
 map.put(goods5.getId(), goods5);
    }
    public static boolean check(int id) {
 // 检测匹配id
 if (!map.containsKey(id)) {
     // 没有匹配id
     return false;
 } else {
     // 有匹配的id
     return true;
 }
    }
    public static void add() {// 新增商品
 System.out.println(">>新增商品");
 System.out.print("请输入商品编号：");
 int id = in.nextInt();
 if (new TestGoods1().check(id)) {
     // 有匹配的id
     System.out.println("对不起，此商品已存在！");
 } else {
     System.out.print("请输入商品名称：");
     String name = in.next();
     System.out.print("请输入商品单价：");
     double price = in.nextDouble();
     System.out.print("请输入商品单位：");
     String uom = in.next();
     System.out.print("请输入商品库存：");
     int balance = in.nextInt();
     Goods1 goods6 = new Goods1(id, name, price, uom, balance);
     map.put(goods6.getId(), goods6);
     System.out.println("新增成功！");
 }
    }
    public static void show() {// 显示商品信息
 System.out.println("商品编号t商品名称tt商品单价t单位t数量");
 Set> entrySet = map.entrySet();
 Iterator> iter = entrySet.iterator();
 while (iter.hasNext()) {
     Map.Entry entry = iter.next();
     System.out.print(entry.getKey() + "t");
     System.out.println(entry.getValue().getName() + "tt" + entry.getValue().getPrice() + "t"
      + entry.getValue().getUom() + "t" + entry.getValue().getBalance());
 }
    }
    public static void inStore() {// 入库
 System.out.println(">>商品入库");
 System.out.print("请输入商品编号：");
      int id = in.nextInt();
      for (int i = 0; i < map.size(); i++) {
   if (new TestGoods1().check(id)) {
  //有匹配的id
  System.out.print("请输入入库数量：");
  int count = in.nextInt();
      int c = ((Goods1) map.get(id)).getBalance()+count;
      ((Goods1) map.get(id)).setBalance(c);
      break;
     }else{
  //没有匹配的id
  System.out.println("对不起，此商品不存在！");
  break;
     }
 }
    }
    public void outStore() {// 出库
 System.out.println(">>商品出库");
 System.out.print("请输入商品编号：");
 int id = in.nextInt();
 for (int i = 0; i < map.size(); i++) {
   if (new TestGoods1().check(id)) {
  //有匹配的id
  System.out.print("请输入出库数量：");
  int count = in.nextInt();
  if(count>((Goods1)map.get(id)).getBalance()){
      System.out.println("库存不足，出库失败！");
  }else{
      int c = ((Goods1) map.get(id)).getBalance()-count;
      ((Goods1) map.get(id)).setBalance(c);
      break;
  }
     }else{
  //没有匹配的id
  System.out.println("对不起，此商品不存在！");
  break;
     }
 }
    }
    public static void main(String[] args) {
 // TODO Auto-generated method stub
 TestGoods1 t = new TestGoods1();
 t.get();
 //t.add();
    //    t.show();
    //    t.inStore();
 t.show();
 t.outStore();
 t.show();
    }
}

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希望本文所述对大家java程序设计有所帮助。