算是最簡單的吧
在平橋等地區(qū)，都構(gòu)建了全面的區(qū)域性戰(zhàn)略布局，加強(qiáng)發(fā)展的系統(tǒng)性、市場前瞻性、產(chǎn)品創(chuàng)新能力，以專注、極致的服務(wù)理念，為客戶提供網(wǎng)站制作、成都網(wǎng)站制作 網(wǎng)站設(shè)計(jì)制作按需搭建網(wǎng)站,公司網(wǎng)站建設(shè),企業(yè)網(wǎng)站建設(shè),成都品牌網(wǎng)站建設(shè),成都全網(wǎng)營銷推廣,成都外貿(mào)網(wǎng)站建設(shè)公司,平橋網(wǎng)站建設(shè)費(fèi)用合理。
package cn.job01;
import java.util.Scanner;
public class Lx07 {
public static void choice() {
System.out.println("登陸菜單 ");
System.out.println("1登陸系統(tǒng)");
System.out.println("2退出");
}
static void choice1() {
System.out.println("購物管理系統(tǒng)客戶信息");
System.out.println("1顯示所有客戶信息");
System.out.println("2添加客戶信息");
System.out.println("3修改客戶信息");
System.out.println("4查詢客戶信息");
}
static void choice2() {
System.out.println("購物管理系統(tǒng)真情回饋");
System.out.println("1幸運(yùn)大放送");
System.out.println("2幸運(yùn)抽獎(jiǎng)");
System.out.println("3生日問候");
}
public static void main(String[] args) {
choice();
Scanner input = new Scanner(System.in);
System.out.println("請(qǐng)輸入1or2");
int num = input.nextInt();
switch (num) {
case 1:
System.out.println("主菜單");
System.out.println("1客戶信息管理");
System.out.println("2購物結(jié)算");
System.out.println("3真情回饋");
System.out.println("4注銷");
break;
}
System.out.println("選擇輸入數(shù)字");
int num1 = input.nextInt();
switch (num1) {
case 1:
choice1();
break;
case 2:
System.out.println("購物結(jié)算");
break;
case 3:
choice2();
break;
case 4:
choice();
break;
}
}
}
package cn.test.logan.day04;
import java.util.ArrayList;
/**
* 訂單類
* 包含：訂單ID、訂單所屬用戶、訂單所包含的商品、訂單總金額、訂單應(yīng)付金額
* 500-1000 ------- 8.5折
* 1000-1500 ------- 8折
* 1500-2000 ------- 7折
* 2000以上 ------- 6.5折
* 如果是會(huì)員，那么可以基于以上折扣繼續(xù)折扣
* 一般會(huì)員：9.5折
* 中級(jí)會(huì)員：9折
* 高級(jí)會(huì)員：8折
* @author QIN
*
*/
public class Order {undefined
// 訂單ID
public String ordId;
// 訂單所屬用戶
public User user;
// 訂單所包含的商品(多個(gè)商品，使用ArrayList)
public ArrayList pds;
// 訂單總金額
public float ordAllAmt;
// 訂單應(yīng)付金額
public float payAmt;
// 計(jì)算總金額的方法
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;
}
// 計(jì)算實(shí)付金額
public void setPayAmt() {undefined
float tmp = this.ordAllAmt;
// 根據(jù)總金額進(jìn)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;
}
// 根據(jù)會(huì)員等級(jí)折扣
if(user.CustLevel.equals("一般會(huì)員")) {undefined
tmp = tmp * 0.95f;
}
if(user.CustLevel.equals("中級(jí)會(huì)員")) {undefined
tmp = tmp * 0.9f;
}
if(user.CustLevel.equals("高級(jí)會(huì)員")) {undefined
tmp = tmp * 0.8f;
}
//計(jì)算結(jié)果賦值給對(duì)象上的payAmt變量
this.payAmt = tmp;
}
}
參考資料來源：百度貼吧CSDN博主「公子京」
/**
* 得到一個(gè)新的訂單代碼
* 說明，此函數(shù)還沒有進(jìn)行過多線程測試，更新數(shù)據(jù)庫時(shí)未加鎖
* @return 新的訂單代碼
*/
public String getOrderCode(){
//getParameter這個(gè)方法就是從數(shù)據(jù)庫取2個(gè)參數(shù)的值 ORDER_CODE_DATE 和
//ORDER_CODE_NO是數(shù)據(jù)庫字段名
BasParameters orderCodeDate = getParameter(ORDER_CODE_DATE);
BasParameters orderCodeNo = getParameter(ORDER_CODE_NO);
//當(dāng)前日期
String currDate=new SimpleDateFormat("yyyyMMdd").format(new Date(System.currentTimeMillis()));
//每天的起始數(shù)
int orderNo = 100;
//表里存的日期和當(dāng)前日期相同,順序號(hào)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當(dāng)前值到數(shù)據(jù)庫
save(orderCodeNo);
} else {
//表里存的日期和當(dāng)前日期不同,順序號(hào)重新開始,更新參數(shù)表的日期
orderCodeDate.setValue(currDate);
save(orderCodeDate);
orderCodeNo.setValue(orderNo);
save(orderCodeNo);
}
return currDate + new DecimalFormat("000000").format(orderNo);
}
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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