用java数组模拟购物商城功能与实现

野性酷女 2022-10-03 00:55 150阅读 0赞

实体类1（商品）：

package mall.model;

public class goods \{

private int shoppingID; // 商品编号  
private String shoppingName;// 商品名  
private int price; // 商品价格

public goods(int shoppingID, String shoppingName, int price) \{  
this.shoppingID = shoppingID;  
this.shoppingName = shoppingName;  
this.price = price;  
\}

public goods() \{  
super();  
\}

public int getShoppingID() \{  
return shoppingID;  
\}

public void setShoppingID(int shoppingID) \{  
this.shoppingID = shoppingID;  
\}

public String getShoppingName() \{  
return shoppingName;  
\}

public void setShoppingName(String shoppingName) \{  
this.shoppingName = shoppingName;  
\}

public int getPrice() \{  
return price;  
\}

public void setPrice(int price) \{  
this.price = price;  
\}

实体类2（购物车）

package mall.model;

public class shoppingCart \{  
private int shoppingID; // 商品编号  
private String shoppingName; // 商品名  
private int price; // 商品价格

public shoppingCart() \{  
super();  
\}

public shoppingCart(int shoppingID, String shoppingName, int price) \{  
super();  
this.shoppingID = shoppingID;  
this.shoppingName = shoppingName;  
this.price = price;  
\}

public int getShoppingID() \{  
return shoppingID;  
\}

public void setShoppingID(int shoppingID) \{  
this.shoppingID = shoppingID;  
\}

public String getShoppingName() \{  
return shoppingName;  
\}

public void setShoppingName(String shoppingName) \{  
this.shoppingName = shoppingName;  
\}

public int getPrice() \{  
return price;  
\}

public void setPrice(int price) \{  
this.price = price;  
\}

实体类3（用户）

package mall.model;

/\*\*  
\* @author shixi1809 用户类  
\*/  
public class user \{  
private String userName; // 用户名  
private String passWord; // 用户密码  
private int type; // 用户类型，1位管理员，2为会员

public user(String userName, String passWord, int type) \{  
super();  
this.userName = userName;  
this.passWord = passWord;  
this.type = type;  
\}

public user() \{  
super();  
\}

public String getUserName() \{  
return userName;  
\}

public void setUserName(String userName) \{  
this.userName = userName;  
\}

public String getPassWord() \{  
return passWord;  
\}

public void setPassWord(String passWord) \{  
this.passWord = passWord;  
\}

public int getType() \{  
return type;  
\}

public void setType(int type) \{  
this.type = type;  
\}

public void show1() \{  
String ttt = null;  
if (getType() == 1) \{  
ttt = "管理员";  
\} else if (getType() == 2) \{  
ttt = "会员";  
\}  
System.out.println("用户名：" + getUserName() + ",密码：" + getPassWord()  
\+ ",用户类型：" + ttt);  
\}

测试类

package mall.controller;

import mall.function.service;

public class test \{  
public static void main(String\[\] args) \{  
System.out.println("请登录：");  
service service = new service();  
service.login();  
\}  
\}

功能实现

package mall.function;

import java.util.Scanner;

import mall.model.goods;  
import mall.model.shoppingCart;  
import mall.model.user;

public class service \{  
private static user user\[\] = new user\[5\];  
private static goods good\[\] = new goods\[5\];  
private static shoppingCart cart\[\] = new shoppingCart\[5\];  
private static Integer num; // 登录的用户id  
static \{  
for (int i = 0; i < good.length; i++) \{  
good\[i\] = new goods();  
\}  
for (int i = 0; i < good.length; i++) \{  
cart\[i\] = new shoppingCart();  
\}  
\}

// 登录  
@SuppressWarnings("resource")  
public void login() \{  
// 给用户添加两个值，1为管理员，2位用户  
user\[0\] = new user("admin", "admin", 1);  
user\[1\] = new user("zhangsan", "zhangsan", 2);  
Scanner scanner1 = new Scanner(System.in);  
System.out.println("请输入用户名：");  
String str1 = scanner1.next();  
Scanner scanner2 = new Scanner(System.in);  
System.out.println("请输入密码：");  
String str2 = scanner2.next();

for (int i = 0; i < user.length; i++) \{  
if (user\[i\] != null) \{  
if (str1.equals(user\[i\].getUserName())  
&& str2.equals(user\[i\].getPassWord())) \{  
if (user\[i\].getType() == 1) \{  
System.out.println("欢迎进入管理员界面！！");  
while (true) \{  
System.out  
.println("1.增加商品\\t 2.删除商品\\t 3.修改商品\\t 4.商品显示\\t 5.切换用户\\t 0.退出系统");  
Scanner scanner = new Scanner(System.in);  
System.out.println("请选择功能：");  
int sel = scanner.nextInt();  
switch (sel) \{  
case 1:  
add();  
break;  
case 2:  
Scanner scan1 = new Scanner(System.in);  
System.out.println("请输入要删除的商品编号：");  
int sttr1 = scan1.nextInt();  
System.out.println("是否确定要删除该商品？");  
Scanner scan2 = new Scanner(System.in);  
System.out  
.println("请输入商品名（确认请输入'y'，取消请输入'n'）：");  
String sttr2 = scan2.next();  
if (sttr2.equals("y")) \{  
remove(sttr1);  
\} else if (sttr2.equals("n")) \{  
break;  
\} else \{  
System.out.println("输入有误！");  
\}  
break;  
case 3:  
Scanner scan3 = new Scanner(System.in);  
System.out.println("请输入商品编号：");  
int strr = scan3.nextInt();  
modify(strr);  
break;  
case 4:  
show();  
break;  
case 5:  
login();  
break;  
case 0:  
System.exit(0);  
break;  
default:  
System.out.println("输入有误！");  
break;  
\}  
\}  
\} else \{  
System.out.println("欢迎进入用户界面！！");  
num = i; // 登录的用户id  
System.out.println(num);  
while (true) \{  
System.out  
.println("1.购买商品\\t 2.商品搜索\\t 3.商品展示\\t 4.切换用户\\t 0.退出系统");  
Scanner scanner = new Scanner(System.in);  
System.out.println("请选择功能：");  
int sel = scanner.nextInt();  
switch (sel) \{  
case 1:  
Scanner scannerBuy = new Scanner(System.in);  
System.out.println("请输入商品编号：");  
int buyNo = scannerBuy.nextInt();  
buy(buyNo);  
break;  
case 2:  
Scanner sele = new Scanner(System.in);  
System.out.println("请输入商品名：");  
String selName = sele.next();  
select(selName);  
break;  
case 3:  
show();  
break;  
case 4:  
login();  
break;  
case 0:  
System.exit(0);  
break;  
default:  
System.out.println("输入有误！");  
break;  
\}  
\}  
\}  
\}  
\}  
\}  
System.out.println("用户名与密码不符，请重新输入！");  
\}

// 加入购物车  
@SuppressWarnings("resource")  
public void cartAdd(int no) \{  
for (int i = 0; i < cart.length; i++) \{  
if (cart\[i\].getShoppingID() == 0) \{  
cart\[i\] = new shoppingCart(good\[no\].getShoppingID(),  
good\[no\].getShoppingName(), good\[no\].getPrice());  
System.out.println("购物车添加成功！");  
System.out.println("请选择继续购物或进入购物车：1.继续购物\\t 2.进入购物车 ");  
Scanner scanner1 = new Scanner(System.in);  
System.out.println("请选择：");  
int str1 = scanner1.nextInt();  
switch (str1) \{  
case 1:  
show();  
break;  
case 2:  
cartShow();  
break;  
default:  
System.out.println("输入有误！！");  
break;  
\}  
break;  
\}  
\}  
\}

// 搜索商品  
@SuppressWarnings("resource")  
public void select(String name) \{  
for (int i = 0; i < good.length; i++) \{  
if (good\[i\].getShoppingName() != null  
&& good\[i\].getShoppingName() != "") \{  
if (good\[i\].getShoppingName().indexOf(name) != -1) \{  
for (int j = 0; j < good.length; j++) \{  
if (good\[i\].getShoppingName().equals(  
good\[j\].getShoppingName())) \{  
System.out.println("商品编号："  
\+ good\[i\].getShoppingID() + ",商品名："  
\+ good\[i\].getShoppingName() + ",价格："  
\+ good\[i\].getPrice());  
System.out  
.println("请选择购买商品或加入购物车：1.购买该商品\\t 2.加入购物车\\t 3.继续购物\\t 4.进入购物车 ");  
Scanner scanner1 = new Scanner(System.in);  
System.out.println("请选择：");  
int str1 = scanner1.nextInt();  
switch (str1) \{  
case 1:  
buy(j);  
break;  
case 2:  
cartAdd(j);  
break;  
case 3:  
show();  
break;  
case 4:  
cartShow();  
break;  
default:  
System.out.println("输入有误！！");  
break;  
\}  
\}  
\}  
\}  
\}  
\}  
\}

// 购买商品  
@SuppressWarnings("resource")  
public void buy(int no) \{  
for (int i = 0; i < good.length; i++) \{  
if (no == good\[i\].getShoppingID()) \{  
System.out.println("商品编号：" + good\[i\].getShoppingID() + ",商品名："  
\+ good\[i\].getShoppingName() + ",价格："  
\+ good\[i\].getPrice());  
System.out.println("是否确认购买(请回复y/n)？");  
Scanner scan2 = new Scanner(System.in);  
String sttr2 = scan2.next();  
if (sttr2.equals("y")) \{  
System.out.println("商品购买成功！");  
\} else if (sttr2.equals("n")) \{  
System.out.println("商品购买失败！");  
\} else \{  
System.out.println("输入有误！");  
\}  
\}  
\}  
\}

// 添加商品  
@SuppressWarnings("resource")  
public void add() \{  
Scanner scanner1 = new Scanner(System.in);  
System.out.println("请输入商品编号：");  
int str1 = scanner1.nextInt();  
Scanner scanner2 = new Scanner(System.in);  
System.out.println("请输入商品名：");  
String str2 = scanner2.next();  
Scanner scanner3 = new Scanner(System.in);  
System.out.println("请输入商品价格：");  
int str3 = scanner3.nextInt();  
for (int i = 0; i < good.length; i++) \{  
if (good\[i\].getShoppingID() != 0) \{  
if (good\[i\].getShoppingID() == str1) \{  
System.out.println("该商品已存在！！！");  
return;  
\}  
\}  
\}  
for (int i = 0; i < good.length; i++) \{  
if (good\[i\].getShoppingID() == 0) \{  
good\[i\] = new goods(str1, str2, str3);  
System.out.println("商品添加成功！");  
break;  
\}  
\}  
\}

// 移除商品  
public void remove(int no) \{  
for (int i = 0; i < good.length; i++) \{  
if (good\[i\].getShoppingID() != 0) \{  
if (no == good\[i\].getShoppingID()) \{  
good\[i\] = new goods();  
System.out.println("商品已删除！");  
\} else \{  
System.out.println("不存在该商品！");  
\}  
\}  
\}  
\}

// 商品修改  
@SuppressWarnings("resource")  
public void modify(int no) \{  
for (int i = 0; i < good.length; i++) \{  
if (good\[i\].getShoppingID() != 0) \{  
if (no == good\[i\].getShoppingID()) \{  
Scanner scanner2 = new Scanner(System.in);  
System.out.println("请输入商品名：");  
String str2 = scanner2.next();  
Scanner scanner3 = new Scanner(System.in);  
System.out.println("请输入商品价格：");  
int str3 = scanner3.nextInt();  
good\[i\] = new goods(no, str2, str3);  
System.out.println("商品已修改。。。");  
return;  
\}  
\}  
\}  
System.out.println("商品未找到。。。");  
\}

// 显示商品  
public void show() \{  
for (int i = 0; i < good.length; i++) \{  
if (good\[i\].getShoppingID() != 0) \{  
System.out.println("商品编号：" + good\[i\].getShoppingID() + ",商品名："  
\+ good\[i\].getShoppingName() + ",价格："  
\+ good\[i\].getPrice());  
\}  
\}  
\}

// 进入购物车  
public void cartShow() \{  
System.out.println(user\[num\].getUserName() + "的购物车：");  
for (int i = 0; i < cart.length; i++) \{  
if (cart\[i\].getShoppingID() != 0) \{  
System.out.println("商品编号：" + cart\[i\].getShoppingID() + ",商品名："  
\+ cart\[i\].getShoppingName() + ",价格："  
\+ cart\[i\].getPrice());  
\}  
\}  
\}

转载于:https://www.cnblogs.com/xiaopangyu/p/9247280.html