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简单订单添加java代码 简单订单添加java代码

用JAVA编写购物系统的代码是什么?(急)

算是最简单的吧

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package cn.job01;

import java.util.Scanner;

public class Lx07 {

public static void choice() {

System.out.println("登陆菜单 ");

System.out.println("1登陆系统");

System.out.println("2退出");

}

static void choice1() {

System.out.println("购物管理系统客户信息");

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");

}

static void choice2() {

System.out.println("购物管理系统真情回馈");

System.out.println("1幸运大放送");

System.out.println("2幸运抽奖");

System.out.println("3生日问候");

}

public static void main(String[] args) {

choice();

Scanner input = new Scanner(System.in);

System.out.println("请输入1or2");

int num = input.nextInt();

switch (num) {

case 1:

System.out.println("主菜单");

System.out.println("1客户信息管理");

System.out.println("2购物结算");

System.out.println("3真情回馈");

System.out.println("4注销");

break;

}

System.out.println("选择输入数字");

int num1 = input.nextInt();

switch (num1) {

case 1:

choice1();

break;

case 2:

System.out.println("购物结算");

break;

case 3:

choice2();

break;

case 4:

choice();

break;

}

}

}

java 如何实现一个用户 一个订单

package cn.test.logan.day04;

import java.util.ArrayList;

/**

* 订单类

* 包含:订单ID、订单所属用户、订单所包含的商品、订单总金额、订单应付金额

* 500-1000 ------- 8.5折

* 1000-1500 ------- 8折

* 1500-2000 ------- 7折

* 2000以上 ------- 6.5折

* 如果是会员,那么可以基于以上折扣继续折扣

* 一般会员:9.5折

* 中级会员:9折

* 高级会员:8折

* @author QIN

*

*/

public class Order {undefined

// 订单ID

public String ordId;

// 订单所属用户

public User user;

// 订单所包含的商品(多个商品,使用ArrayList)

public ArrayList pds;

// 订单总金额

public float ordAllAmt;

// 订单应付金额

public float payAmt;

// 计算总金额的方法

public void setAllAmt() {undefined

float sum = 0;

for(int i=0;i

sum +=this.pds.get(i).price * this.pds.get(i).number;

}

this.ordAllAmt = sum;

}

// 计算实付金额

public void setPayAmt() {undefined

float tmp = this.ordAllAmt;

// 根据总金额进行折扣

if(this.ordAllAmt = 500 this.ordAllAmt

tmp = this.ordAllAmt * 0.85f;

}

if(this.ordAllAmt = 1000 this.ordAllAmt

tmp = this.ordAllAmt * 0.8f;

}

if(this.ordAllAmt = 1500 this.ordAllAmt

tmp = this.ordAllAmt * 0.7f;

}

if(this.ordAllAmt = 2000) {undefined

tmp = this.ordAllAmt * 0.65f;

}

// 根据会员等级折扣

if(user.CustLevel.equals("一般会员")) {undefined

tmp = tmp * 0.95f;

}

if(user.CustLevel.equals("中级会员")) {undefined

tmp = tmp * 0.9f;

}

if(user.CustLevel.equals("高级会员")) {undefined

tmp = tmp * 0.8f;

}

//计算结果赋值给对象上的payAmt变量

this.payAmt = tmp;

}

}

参考资料来源:百度贴吧CSDN博主「公子京」

生成订单编号 用java怎么处理

/**

* 得到一个新的订单代码

* 说明,此函数还没有进行过多线程测试,更新数据库时未加锁

* @return 新的订单代码

*/

public String getOrderCode(){

//getParameter这个方法就是从数据库取2个参数的值 ORDER_CODE_DATE 和

//ORDER_CODE_NO是数据库字段名

BasParameters orderCodeDate = getParameter(ORDER_CODE_DATE);

BasParameters orderCodeNo = getParameter(ORDER_CODE_NO);

//当前日期

String currDate=new SimpleDateFormat("yyyyMMdd").format(new Date(System.currentTimeMillis()));

//每天的起始数

int orderNo = 100;

//表里存的日期和当前日期相同,顺序号累加

if (currDate.equals(orderCodeDate.getValue())){

orderCodeNo.setValue(""+(Integer.parseInt(orderCodeNo.getValue())+1));

orderNo = (Integer.parseInt(orderCodeNo.getValue()));

//save 就是保存ORDER_CODE_DATE 和 ORDER_CODE_NO当前值到数据库

save(orderCodeNo);

} else {

//表里存的日期和当前日期不同,顺序号重新开始,更新参数表的日期

orderCodeDate.setValue(currDate);

save(orderCodeDate);

orderCodeNo.setValue(orderNo);

save(orderCodeNo);

}

return currDate + new DecimalFormat("000000").format(orderNo);

}

java题:编写类似淘宝一个简单的处理订单发货和进货的程序,要求实现简单的进货和发货以及统计货物量的功能

import java.util.ArrayList;

public class Du {

public static void main(String[] args) throws Exception {

Seller seller = new Seller("My Store");

seller.addGoods("T-shirt", 200);

seller.addGoods("Pill", 100);

seller.addGoods("T-shirt", 100);

seller.addGoods("T-shirt", 50);

seller.addGoods("Pill", 50);

seller.addGoods("Hat", 100);

seller.printGoods();

Seller sell2 = new Seller("The Other Store");

sell2.addGoods("T-shirt", 200);

sell2.addGoods("Hat", 100);

sell2.sellGoods("T-shirt", 50);

sell2.addGoods("Hat", 100);

sell2.printGoods();

}

}

class Seller {

private String sellerName;

private int TotalTypeOfGoods;

private ArrayListString goodsNameList = new ArrayListString();

private ArrayListInteger goodsQuantityList = new ArrayListInteger();

public Seller(String sellerName) {

this.sellerName = sellerName;

}

public void addGoods(String goodName, int goodNum) {

int index = goodsNameList.indexOf(goodName);

if (index == -1) {

goodsNameList.add(goodName);

goodsQuantityList.add(new Integer(goodNum));

} else {

goodsQuantityList.set(index, goodsQuantityList.get(index)

.intValue()

+ goodNum);

}

TotalTypeOfGoods = goodsNameList.size();

}

public void sellGoods(String goodName, int goodNum) throws Exception {

if (TotalTypeOfGoods == 0) {

throw new Exception("No goods provided by the shop. Closed!");

}

int index = goodsNameList.indexOf(goodName);

if (index != -1) {

int qty = goodsQuantityList.get(index);

if (goodNum qty) {

throw new Exception("Insufficient goods in the shop. Sorry!");

}

goodsQuantityList.set(index, qty - goodNum);

}else{

throw new Exception("Our shop doesn't sell " + goodName);

}

}

public void printGoods() {

System.out.print("Seller :" + this.sellerName + "\t");

System.out.println("Totoal Types of Goods is :" + this.TotalTypeOfGoods);

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

System.out.print("Goods Name: " + goodsNameList.get(i));

System.out.println("Remains: " + goodsQuantityList.get(i));

}

System.out.println();

}

}

-----------------testing

Seller :My Store Totoal Types of Goods is :3

Goods Name: T-shirtRemains: 350

Goods Name: PillRemains: 150

Goods Name: HatRemains: 100

Seller :The Other Store Totoal Types of Goods is :2

Goods Name: T-shirtRemains: 150

Goods Name: HatRemains: 200


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