JAVA超市购物程序代码,java超市购物程序代码简单

提示：扫一扫查出行
【扫一扫了解最新限行尾号】
复制提示

java超市计价系统代码

package entity;

public class Market {

private int id;//id

private int num;//数量

private String goods;//商品

private double price;//价格

public Market(int id, int num, String goods, double price) {

super();

this.id = id;

this.num = num;

this.goods = goods;

this.price = price;

}

public int getId() {

return id;

}

public void setId(int id) {

this.id = id;

}

public int getNum() {

return num;

}

public void setNum(int num) {

this.num = num;

}

public String getGoods() {

return goods;

}

public void setGoods(String goods) {

this.goods = goods;

}

public double getPrice() {

return price;

}

public void setPrice(double price) {

this.price = price;

}

public double calc( ){

double sum=price*num;

System.out.println("您消费共计："+sum+"￥");

return sum;

}

package test;

import java.util.HashMap;

import java.util.Map;

import java.util.Scanner;

import entity.Market;

public class Test {

private static MapInteger,Market goods=new HashMapInteger, Market();

public static void main(String[] args) {

System.out.println("-------超市计价系统-------");

String goods1="可口可乐";

String goods2="爆米花";

String goods3="益达";

printTable("编号","商品","价格");

printTable("1",goods1,"3.0￥");

printTable("2",goods2,"5.0￥");

printTable("3",goods3,"10.0￥");

goods.put(1, new Market(1, 1, goods1, 3.0));

goods.put(2, new Market(2, 1, goods2, 5.0));

goods.put(3, new Market(3, 1, goods3, 10.0));

Scanner input = new Scanner(System.in);

System.out.println("请输入商品的编号:");

int num = input.nextInt();

System.out.println("请输入商品的数量");

int amount = input.nextInt();

Market market = goods.get(num);

market.setNum(amount);

market.calc();

}

private static void printTable(String row1,String row2,String row3 ) {

System.out.print(row1);

int times=12;

if (row2!="商品") {

times=5;

}

for (int i = 0; i times; i++) {

System.out.print(" ");

}

System.out.print(row2);

for (int i = 0; i 10; i++) {

System.out.print(" ");

}

System.out.print(row3);

System.out.println("\n");

}

//测试结果：

-------超市计价系统-------

编号商品价格

1 可口可乐 3.0￥

2 爆米花 5.0￥

3 益达 10.0￥

请输入商品的编号:

请输入商品的数量

您消费共计：50.0￥

相关问答

Q1: 购物车的Java代码

import java.util.ArrayList;

import java.util.HashMap;

import java.util.Iterator;public class ShoppingCartManager {

HashMapString, String hm=new HashMapString, String();

float totlePrice=0;

//添加book到购物车

public void addBook(String bookId,String bookQuantity){

if(hm.containsKey(bookId)){

int value=Integer.parseInt(hm.get(bookId));

value+=Integer.parseInt(bookQuantity);

hm.put(bookId, value+"");

}else{

hm.put(bookId, bookQuantity);

}

//修改数量

public void updateQuantity(String bookId,String bookQuantity){

hm.put(bookId, bookQuantity);

}

//获取购物车的所有信息并计算总价

public ArrayListBookBean getShoppingCart(){

ArrayListBookBean al=new ArrayListBookBean();

IteratorString i=hm.keySet().iterator();

String ids="";

BookTableManager btm=new BookTableManager();

while(i.hasNext()){

ids=ids+","+i.next();

}

al= btm.selectByBookIds(ids);

totlePrice=0; //清空总价，防止无限累计

for(int j=0;jal.size();j++){

BookBean bb=al.get(j);

totlePrice+=bb.getPrice()*Integer.parseInt(getQuantityById(bb.getBookId()+""));

}

return al;

}

//获取总价

public float getTotlePrice(){

return totlePrice;

}

//根据ID获取数量

public String getQuantityById(String id){

String quantity=hm.get(id);

return quantity;

}

//清空购物车

public void clear(){

hm.clear();

}

//删除购物车中的一本书

public void deleteById(String id){

hm.remove(id);

}

Q2: java编写程序实现某超市商品查价功能。从键盘输入商品号，显示对应的商品价格，以“n”结束查询。

package sum;

import java.util.ArrayList;

import java.util.Scanner;

public class TestDemo {

public static void main(String[] args){

ArrayListGoods arr = new ArrayListGoods();

Goods g1 = new Goods(1, "羽毛球", 237);

Goods g2 = new Goods(2, "羽毛球拍", 113);

Goods g3 = new Goods(3, "护腕", 100);

arr.add(g1);

arr.add(g2);

arr.add(g3);

System.out.println("***********************商品查询系统*********************");

System.out.println("1.羽毛球 2.羽毛球拍 3.护腕");

System.out.println("*****************************************************");

Scanner sc = new Scanner(System.in);

outer: while(true){

System.out.print("请选择商品号:");

String num = sc.next();

for(int i = 0; i arr.size(); i++){

if((arr.get(i).getId() + "").equals(num)){

System.out.println(arr.get(i).getName() + " " + arr.get(i).getPrice() + "元" );

}else if(num.equals("n")){

System.out.println("谢谢使用");

break outer;

}

class Goods{

public Goods(int id, String name, int price){

this.id = id;

this.name = name;

this.price = price;

}

private int id;

private String name;

private int price;

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 int getPrice() {

return price;

}

public void setPrice(int price) {

this.price = price;

}

很辛苦写的希望能采纳

Q3: Java项目实训模拟网上超市购物结算功能

使用结构体+数组，就可以了

~~~~~~~~~~~~~~~~~~~~~~~~~

Q4: Java初学者，哪位友友能帮我设计一个简单的类似超市购物车的程序，参考一下~谢谢！

以前学习java又做个实例，挺值得学习的。

1.首先我先列出我们所需要的java类结构。

1）Database.java --------- 模拟存储商品的数据库。

2）McBean.java ------------ 商品实体类，一个普通的javabean，里面有商品的基本属性。

3）OrderItemBean.java --- 订单表。

4）ShoppingCar.java ------ 这个就是最主要的购物车，当然比较简单。

5）TestShoppingCar.java --- 这个是测试类。

2.下面贴出具体代码并带关键注释。

---Database.java

public class Database {

/*采用Map存储商品数据，为什么呢？我觉得这个问题你自己需要想下。

* Integer 为Map的key值，McBean为Map的value值。

private static MapInteger, McBean data = new HashMapInteger, McBean();

public Database() {

McBean bean = new McBean();

bean.setId(1);

bean.setName("地瓜");

bean.setPrice(2.0);

bean.setInstuction("新鲜的地瓜");

data.put(1, bean);//把商品放入Map

bean = new McBean();

bean.setId(2);

bean.setName("土豆");

bean.setPrice(1.2);

bean.setInstuction("又好又大的土豆");

data.put(2, bean);//把商品放入Map

bean = new McBean();

bean.setId(3);

bean.setName("丝瓜");

bean.setPrice(1.5);

bean.setInstuction("本地丝瓜");

data.put(3, bean);//把商品放入Map

}

public void setMcBean(McBean mcBean){

data.put(mcBean.getId(),mcBean);

}

public McBean getMcBean(int nid) {

return data.get(nid);

}

---McBean.java

public class McBean {

private int id;//商品编号

private String name;//商品名

private double price;//商品价格

private String instuction;//商品说明

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 getInstuction() {

return instuction;

}

public void setInstuction(String instuction) {

this.instuction = instuction;

}

---ShoppingCar.java

public class ShoppingCar {

private double totalPrice; // 购物车所有商品总价格

private int totalCount; // 购物车所有商品数量

private MapInteger, OrderItemBean itemMap; // 商品编号与订单项的键值对

public ShoppingCar() {

itemMap = new HashMapInteger, OrderItemBean();

}

public void buy(int nid) {

OrderItemBean order = itemMap.get(nid);

McBean mb;

if (order == null) {

mb = new Database().getMcBean(nid);

order = new OrderItemBean(mb, 1);

itemMap.put(nid, order);

update(nid, 1);

} else {

order.setCount(order.getCount() + 1);

update(nid, 1);

}

public void delete(int nid) {

OrderItemBean delorder = itemMap.remove(nid);

totalCount = totalCount - delorder.getCount();

totalPrice = totalPrice - delorder.getThing().getPrice() * delorder.getCount();

}

public void update(int nid, int count) {

OrderItemBean updorder = itemMap.get(nid);

totalCount = totalCount + count;

totalPrice = totalPrice + updorder.getThing().getPrice() * count;

}

public void clear() {

itemMap.clear();

totalCount = 0;

totalPrice = 0.0;

}

public void show() {

DecimalFormat df = new DecimalFormat("¤#.##");

System.out.println("商品编号\t商品名称\t单价\t购买数量\t总价");

Set set = itemMap.keySet();

Iterator it = set.iterator();

while (it.hasNext()) {

OrderItemBean order = itemMap.get(it.next());

System.out.println(order.getThing().getId() + "\t"

+ order.getThing().getName() + "\t"

+ df.format(order.getThing().getPrice()) + "\t" + order.getCount()

+ "\t" + df.format(order.getCount() * order.getThing().getPrice()));

}

System.out.println("合计: 总数量: " + df.format(totalCount) + " 总价格: " + df.format(totalPrice));

System.out.println("**********************************************");

}

---OrderItemBean.java

public class OrderItemBean {

private McBean thing;//商品的实体

private int count;//商品的数量

public OrderItemBean(McBean thing, int count) {

super();

this.thing = thing;

this.count = count;

}

public McBean getThing() {

return thing;

}

public void setThing(McBean thing) {

this.thing = thing;

}

public int getCount() {

return count;

}

public void setCount(int count) {

this.count = count;

}

---TestShoppingCar.java

package com.shop;

public class TestShoppingCar {

public static void main(String[] args) {

ShoppingCar s = new ShoppingCar();

s.buy(1);//购买商品编号1的商品

s.buy(1);

s.buy(2);

s.buy(3);

s.buy(1);

s.show();//显示购物车的信息

s.delete(1);//删除商品编号为1的商品

s.show();

s.clear();

s.show();

}

3.打印输出结果

商品编号商品名称单价购买数量总价

1 地瓜￥2 3 ￥6

2 土豆￥1.2 1 ￥1.2

3 丝瓜￥1.5 1 ￥1.5

合计: 总数量: ￥5 总价格: ￥8.7

**********************************************

商品编号商品名称单价购买数量总价

2 土豆￥1.2 1 ￥1.2

3 丝瓜￥1.5 1 ￥1.5

合计: 总数量: ￥2 总价格: ￥2.7

**********************************************

商品编号商品名称单价购买数量总价

合计: 总数量: ￥0 总价格: ￥0

**********************************************

4.打字太累了，比较匆忙，但是主要靠你自己领会。哪里不清楚再提出来。

Q5: 用java编程实现网上超市购物结算功能代码

哎，我还是自己代码黏贴给你吧！免得总通不过！装不下这么多字，详情自己找我。连接数据库类（添加修改会员信息） package com.to.java; import java.util.Scanner; import java.sql.*; public class Vds { Scanner Input=new Scanner(System.in); ZhuCK1 zhuck1=new ZhuCK1(); public void x(){ try{ Connection con=null; Statement stmt=null; ResultSet rs=null; Class.forName("sun.jdbc.odbc.JdbcOdbcDriver"); String ur1="jdbc:odbc:gg"; con=DriverManager.getConnection(ur1); stmt=con.createStatement(); String sqlstmt="select id,mm from gg"; rs=stmt.executeQuery(sqlstmt); System.out.println("----------查询结果---------"); System.out.println(); System.out.println("会员号--密码"); while(rs.next()){ String id=rs.getString("id"); String mm=rs.getString("mm"); System.out.println(id+" "+mm); } con.close(); stmt.close(); }catch(Exception e){ System.out.println(e);} System.out.println("是否返回上级菜单"); System.out.println("1.是"); System.out.println("2.否"); int m=Input.nextInt(); switch(m){ case 1: zhuck1.ZhucK1(); break; case 2: { System.out.println("欢迎下次再次使用");System.exit(-1);}; break; }} public void j(){ try{ Connection con=null; Statement stmt=null; ResultSet rs=null; Class.forName("sun.jdbc.odbc.JdbcOdbcDriver"); String ur1="jdbc:odbc:gg"; con=DriverManager.getConnection(ur1); stmt=con.createStatement(); String sqlstmt="select id,mm from gg"; rs=stmt.executeQuery(sqlstmt); while(rs.next()){ String id=rs.getString("id"); String mm=rs.getString("mm"); System.out.println(id+" "+mm); } Scanner input=new Scanner(System.in); System.out.println("请输入会员信息："); System.out.println("请输入会员号："); String f=input.next(); System.out.println("请输入密码："); String q=input.next(); String sqlst="insert into gg values('"+f+"','"+q+"')"; Statement tatement=con.createStatement(); int result=tatement.executeUpdate(sqlst); System.out.println("操作成功！"); con.close(); stmt.close(); }catch(Exception e){ System.out.println(e); } System.out.println("是否返回上级菜单"); System.out.println("1.是"); System.out.println("2.否"); int m=Input.nextInt(); switch(m){ case 1: zhuck1.ZhucK1(); break; case 2: { System.out.println("欢迎下次再次使用");System.exit(-1);}; break; } } public void xg(){ try{ Connection con=null; Statement stmt=null; ResultSet rs=null; Class.forName("sun.jdbc.odbc.JdbcOdbcDriver"); String ur1="jdbc:odbc:gg"; con=DriverManager.getConnection(ur1); stmt=con.createStatement(); String sqlstmt="select id,mm from gg"; rs=stmt.executeQuery(sqlstmt); while(rs.next()){ String id=rs.getString("id"); String mm=rs.getString("mm"); System.out.println(id+" "+mm); } Scanner input=new Scanner(System.in); System.out.println("请输入会员信息："); System.out.println("请输入要修改的会员号："); String f=input.next(); System.out.println("请输入修改的密码："); String q=input.next(); String sqlst="update gg set mm='"+q+"' where id='"+f+"'"; Statement tatement=con.createStatement(); int result=tatement.executeUpdate(sqlst); System.out.println("操作成功！"); con.close(); stmt.close(); }catch(Exception e){ System.out.println(e); } System.out.println("是否返回上级菜单"); System.out.println("1.是"); System.out.println("2.否"); int m=Input.nextInt(); switch(m){ case 1: zhuck1.ZhucK1(); break; case 2: { System.out.println("欢迎下次再次使用");System.exit(-1);}; break; } } } package com.to.java; import java.util.Scanner; public class KeHu { Vds sj=new Vds(); public void kehu1(){ Scanner Input=new Scanner(System.in); ZhuCK1 zhuck1=new ZhuCK1(); System.out.println("******************************************************"+"\n\n"); System.out.println("1.显示所有客户信息"); System.out.println("2.添加客户信息"); System.out.println("3.修改客户信息"); System.out.println("4.查询客户信息"); System.out.println("5.返回上级菜单"); System.out.println("******************************************************"+"\n\n"); System.out.println("请输入数字："); int a=Input.nextInt(); switch(a){ case 1: sj.x(); break; case 2: sj.j(); break; case 3: sj.xg(); break; case 4: sj.x();break; case 5: zhuck1.ZhucK1();break; } } } package com.to.java; public class GouWuXiTong { public static void main(String[] args){ ZhuCK zhuck=new ZhuCK(); zhuck.ZhucK(); } } package com.to.java; import java.sql.Connection; import java.sql.DriverManager; import java.sql.ResultSet; import java.sql.Statement; import java.util.Scanner; public class ZhuCK { Scanner Input=new Scanner(System.in); public void ZhucK(){ ZhuCK1 zhuck1=new ZhuCK1(); System.out.println("\t\t"+"欢迎使用我心我素购物系统"); System.out.println("******************************************************"+"\n\n"); System.out.println("\t\t"+"1.登陆系统"); System.out.println(); System.out.println("\t\t"+"2.退出"+"\n\n"); System.out.println("******************************************************"); int d=1; while(d!=2){ System.out.println("请输入会员号："); String p=Input.next(); System.out.println("请输入密码："); String f=Input.next(); try{ Connection con=null; Statement stmt=null; ResultSet rs=null; Class.forName("sun.jdbc.odbc.JdbcOdbcDriver"); String ur1="jdbc:odbc:gg"; con=DriverManager.getConnection(ur1); stmt=con.createStatement(); String sqlstmt="select * from gg"; rs=stmt.executeQuery(sqlstmt); while(rs.next()){ String id=rs.getString("id"); String mm=rs.getString("mm"); if(id.equals(p)mm.equals(f)){ { System.out.println("请输入数字："); int a=Input.nextInt(); switch(a){ case 1: zhuck1.ZhucK1(); break; case 2: break; }d=2; } } } }catch(Exception e){ System.out.println(e);} {System.out.println("输入错误请再次输入：");d=1;} } }} }