货物类：编号，名称，价格，库存
新增货物：如果超市没有该货物，则新增
进货：对已有货物，增加库存
修改：修改某个货物的价格，库存
下架：将某个货物删除
查询：打印目前超市在售的货物清单
测试类：
package com.zhiyou.shopping;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.Scanner;
import com.sweet.test.URLitem;
public class Test {
public static void main(String[] args) {
// TODO Auto-generated method stub
List<GoodsManagement> goods = new ArrayList<>();
boolean isOK = true;
while (isOK) {
int i = screen();
if (i == 6) {
isOK = false;
System.out.println("谢谢使用！");
}
function(i,goods);
}
}
public static int screen() {
System.out.println("-------------------欢迎进入货物管理系统-----------------\n");
System.out.println(" 1.新增货物：如果超市没有该货物，则新增");
System.out.println(" 2.进货：对已有货物，增加库存");
System.out.println(" 3.修改：修改某个货物的价格，库存");
System.out.println(" 4.下架：将某个货物删除");
System.out.println(" 5.查询：打印目前超市在售的货物清单");
System.out.println(" 6.退出");
System.out.println("\n------------------------------------------------------");
System.out.println("请输入你的操作：");
Scanner scanner = new Scanner(System.in);
int i = scanner.nextInt();
return i;
}
public static void function(int i,List<GoodsManagement> goods) {
switch (i) {
case 1:
addGoods(goods);
break;
case 2:
add(goods);
break;
case 3:
reviseInfo(goods);
break;
case 4:
deleteUrl(goods);
break;
case 5:
queryInfo(goods);
break;
default:
break;
}
}
public static void addGoods(List<GoodsManagement> goods) {
Scanner scanner = new Scanner(System.in);
System.out.print("请输入编号：");
String id = scanner.next();
System.out.print("请输入名称：");
String name = scanner.next();
System.out.print("请输入价格：");
double price = scanner.nextDouble();
System.out.print("请输入库存：");
int num = scanner.nextInt();
Iterator<GoodsManagement> iterator = goods.iterator();
if (goods.size() != 0) {
boolean isOK = false;
while (iterator.hasNext()) {
GoodsManagement goodsManagement = iterator.next();
if (goodsManagement.getName().equals(name)) {
int num1 = goodsManagement.getNum() + num;
goodsManagement.setNum(num1);
isOK = true;
}
}
if (isOK) {
System.out.println("新增货物成功！");
}else {
goods.add(new GoodsManagement(id, name, price, num));
}
}else {
// 直接添加
goods.add(new GoodsManagement(id, name, price, num));
}
}
public static void add(List<GoodsManagement> goods) {
Scanner scanner = new Scanner(System.in);
System.out.print("请输入要增加库存的商品名称：");
String name = scanner.next();
System.out.print("要增加的库存量为：");
int num = scanner.nextInt();
boolean isOK = false;
Iterator<GoodsManagement> iterator = goods.iterator();
while (iterator.hasNext()) {
GoodsManagement goodsManagement = iterator.next();
if (goodsManagement.getName().equals(name)) {
int num1 = goodsManagement.getNum() + num;
goodsManagement.setNum(num1);
isOK = true;
}
}
if (isOK) {
System.out.println("进货成功！");
}else {
System.out.println("没有该商品，进货失败！");
}
}
public static void reviseInfo(List<GoodsManagement> goods) {
if (goods.size() != 0) {
Scanner scanner = new Scanner(System.in);
System.out.print("请输入要修改的商品名称：");
String name = scanner.next();
System.out.print("请输入修改的价格：");
double price = scanner.nextDouble();
System.out.print("请输入修改的库存量为：");
int num = scanner.nextInt();
boolean isOK = false;
Iterator<GoodsManagement> iterator = goods.iterator();
while (iterator.hasNext()) {
GoodsManagement goodsManagement = iterator.next();
if (goodsManagement.getName().equals(name)) {
goodsManagement.setPrice(price);
goodsManagement.setNum(num);
isOK = true;
}
}
if (isOK) {
System.out.println("修改"+name+"商品的价格和库存成功！");
}else {
System.out.println("修改失败！");
}
}else {
System.out.println("商品为空，无法修改！");
}
}
public static void deleteUrl(List<GoodsManagement> goods) {
if (goods.size() != 0) {
Scanner scanner = new Scanner(System.in);
System.out.print("请输入要下架的商品名称：");
String name = scanner.next();
System.out.println("是否将该商品全部下架？还是只下架该商品中的过期商品？ 1 全部下架 2下架过期商品：");
int key = scanner.nextInt();
Iterator<GoodsManagement> iterator = goods.iterator();
if (key == 1) {
while (iterator.hasNext()) {
GoodsManagement goodsManagement = iterator.next();
if (goodsManagement.getName().equals(name)) {
iterator.remove();
System.out.println("全部下架成功！");
}
}
}else {
System.out.println("请输入要下架的商品的数量：");
int num = scanner.nextInt();
while (iterator.hasNext()) {
GoodsManagement goodsManagement = iterator.next();
if (goodsManagement.getName().equals(name)) {
int num1 = goodsManagement.getNum() - num;
goodsManagement.setNum(num1);
System.out.println("下架部分商品成功！");
}
}
}
}else {
System.out.println("商品为空，无法下架！");
}
}
public static void queryInfo(List<GoodsManagement> goods) {
if (goods.size() != 0) {
boolean isOK = false;
Iterator<GoodsManagement> iterator = goods.iterator();
while (iterator.hasNext()) {
GoodsManagement goodsManagement = iterator.next();
System.out.println(goodsManagement);
isOK = true;
}
if (!isOK) {
System.out.println("查询失败！");
}
}else {
System.out.println("商品为空，无法展示！");
}
}
}
/**
*
*/
package com.zhiyou.shopping;
/**
* @author Administrator
*
*/
public class GoodsManagement {
private String id;
private String name;
private double price;
private int num;
public GoodsManagement(String id, String name, double price, int num) {
super();
this.id = id;
this.name = name;
this.price = price;
this.num = num;
}
public String getId() {
return id;
}
public void setId(String 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 int getNum() {
return num;
}
public void setNum(int num) {
this.num = num;
}
@Override
public String toString() {
return "编号：" + id + " 名称：" + name + " 价格：" + price + " 库存：" + num + "\n";
}
}