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java交易代码 java程序化交易

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急求java购物车代码package bean;
import java.util.ArrayList;
import java.util.List;
/**
*
* @author Administrator
* 购物车类：
* 为了方便将商品信息绑订到session上面而设计的一个
* 工具，提供了商品的添加，删除 ， 列表，计价，清空，
* 修改功能 。
*/
public class Cart {
//items属性：用来保存商品
private ListCartItem items =
new ArrayListCartItem();
/**
* 将商品添加到购物车
*/
public boolean add(CartItem item){
for(int i=0;iitems.size();i){
CartItem curr = items.get(i);
if(curr.getC().getId() == item.getC().getId()){
//该商品已经购买过
return false;
}
}
//没有购买过，则添加该商品
items.add(item);
return true;
}
/**
* 从购物车当中删除某件商品
*/
public void delete(int id){
for(int i=0;iitems.size();i){
CartItem curr = items.get(i);
if(curr.getC().getId() == id){
items.remove(curr);
return;
}
}
}
/**
* 获得购物车中所有商品信息
*/
public ListCartItem list(){
return items;
}
/**
* 商品总价
*/
public double cost(){
double total = 0;
for(int i=0;iitems.size();i){
CartItem curr = items.get(i);
total= curr.getC().getPrice() * curr.getQty();
}
return total;
}
/**
* 清空购物车中的所有商品
*/
public void clear(){
items.clear();
}
/**
* 修改购物车中某种商品的数量
*/
public void modify(int id,int qty){
for(int i=0;iitems.size();i){
CartItem curr = items.get(i);
if(curr.getC().getId() == id){
curr.setQty(qty);
return;
}
}
}
}
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;}} }}}
能不能也给我一段JAVA在线支付的代码？import com.capinfo.crypt.*;
public class RsaTest
{
public RsaTest(){
}
public static void main(String[] args){
//首信公钥文件
String publicKey = "d:/Public1024.key";
//签名信息
String SignString = "3e5671bc4f91c3d055b18c1e5e22dd9db157380c7ee8facf0b1117082fbf398d7113c2df7e3219fc28dd88dd26cb096cabe607f3e397dfc2dcdb3349351a5f025ea0761da6e39e2d2fd311294a6076e777fe2ab8911f22113c435b89d63ae4f2aff2f333f7ebd40cc89601d58fb37b16596b5c94eb8b64cd52e12b9679248e6a";
//原信息
String strSource = "abcde12345";
try{
//公钥验证
RSA_MD5 rsaMD5 = new RSA_MD5();
int k = rsaMD5.PublicVerifyMD5(publicKey,SignString,strSource);
if(k==0)
System.out.println("验证成功.");
else
System.out.println("验证失败.");
}catch(Exception e){
System.out.println("验证异常.\n" e);
}
}
}
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=https://www.04ip.com/post/Integer.parseInt(hm.get(bookId));
value =https://www.04ip.com/post/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);
}
}
java atm机代码package arraylist;
import java.util.Scanner;
public class AtmDemo
{
public static void main(String[] args)
{
// TODO Auto-generated method stub
Scanner sc = new Scanner(System.in);
Boolean flag = true;
int times = 0;
while(flag){
times;
if(times == 4){
System.out.println("密码错误java交易代码，请取卡");
break;
}
System.out.println("请输入java交易代码你java交易代码的密码");
String password = sc.next();
if(password.equals("111111")){
Boolean moneyflag = true;
while(moneyflag){
System.out.println("请输入金额");
int number = sc.nextInt();
if(number = 0number = 1000number % 100 == 0){
【java交易代码 java程序化交易】System.out.println("用户取java交易代码了"number"元 。交易完成");
moneyflag = false;
}else{
System.out.println("请重新输入金额");
}
}
break;
}else{
continue;
}
}
}
}
java交易代码的介绍就聊到这里吧，感谢你花时间阅读本站内容 ， 更多关于java程序化交易、java交易代码的信息别忘了在本站进行查找喔 。

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