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银行账户代码编写java

作者:小编 更新时间:2023-08-10 14:20:12 浏览量:428人看过

用java编的银行账户系统代码

package pack.money.persistent;import java.sql.Connection;

import java.sql.PreparedStatement;

银行账户代码编写java-图1

import java.sql.ResultSet;

import java.util.ArrayList;import pack.money.entity.Client;

import pack.money.entity.ClientMessage;

public class ClientPersistent {

//private static int a=0;

private static String t,b;//t是password b是clinetname

private static ClientPersistent sp;

public static ClientPersistent getClientPersistent() {

银行账户代码编写java-图2

if (sp == null) {

sp = new ClientPersistent();

}

return sp;

private ClientMessage getClientMessage(ResultSet rs) throws Exception{

ClientMessage student=new ClientMessage();

student.setMoney(rs.getFloat("money"));

student.setType(rs.getString("type"));

student.setClientName(rs.getString("ClientName"));

student.setTransactionID(rs.getInt("TransactionID"));

return student;

public Client login(Connection con,String ClientName,String password) throws Exception{

String sql="select balance,password,ClientName from Client where ClientName=? and password=?";

PreparedStatement ps=con.prepareStatement(sql);

ps.setString(1, ClientName);

ResultSet rs=ps.executeQuery();

t=password;

b=ClientName;

System.out.println(t);

System.out.println(b);

if(rs.next()){

Client client=new Client();

client.setClientName(rs.getString("ClientName"));

client.setPassword(rs.getString("password"));

return client; }

throw new Exception("Can not login, the accountID or password has error. ");

} public void save(Connection con ,String money)throws Exception

{ // a++;

String s="save";

float g=Float.parseFloat(money);

String sql="update Client set balance=balance+? where ClientName=?";

String sql1="insert into ATMTransaction(ClientName,Type,money) values(?,?,?) ";

PreparedStatement ps1=con.prepareStatement(sql1);

ps.setFloat(1, g);

//ps1.setInt(1,a);

ps1.setString(1,b);

ps.executeUpdate();

ps1.executeUpdate();

public void withDraw (Connection con ,String money)throws Exception

{ //a++;

String s="WithDraw";

float x=Float.parseFloat(money);

String sql="update Client set balance=balance-? where ClientName=?";

String sql1="insert into ATMTransaction(ClientName,Type,money) values(?,?,?)";

ps.setFloat(1, x);

throws Exception

{

if(t.equals(OldPassWord))

String sql="update Client set password=? where ClientName=?";

ps.setString(1, newPassWord1);

String j="dsfasdf";

return j;

else

{System.out.print("确认密码错误!");br return null;}

{ return null;

public ArrayListClientMessage disPlayAll(Connection con ) throws Exception

String sql="select * from ATMTransaction where ClientName=? ";

ps.setString(1,b);

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

ArrayListClientMessage message=new ArrayListClientMessage();

while(rs.next()){

message.add(this.getClientMessage(rs));

return message;

public float showBalance(Connection con ) throws Exception

String sql="select balance from Client where ClientName=?";

ps.setString(1, b);

if(rs.next())

float s;

s=rs.getFloat("balance");

return s;

else return 0 ;

java编写一个帐户类实现银行帐户的概念,创建帐户类的对象,完成存款与取款等操作.

其实你照着这些话一句句就已经写出来了...

public?class?BankAccount?{

String?account_number;

int?leftmoney;

public?BankAccount()?{

//?TODO?Auto-generated?constructor?stub

public?BankAccount(String?account_number,?int?leftmoney)?{

super();

this.account_number?=?account_number;

this.leftmoney?=?leftmoney;

public?void?savemoney(int?money)?{

leftmoney?+=?money;

public?void?getmoney(int?money)?{

if?(leftmoney?money)?{

leftmoney?-=?money;

}?else?{

System.out.println("账户余额不足");

public?int?getleftmoney()?{

return?leftmoney;

public?static?void?main(String[]?args)?{

ba.savemoney(1000);

JAVA编写银行账户程序摸拟银行账户的存\取款操作

public class ATM {

public static void main(String[] args) {

// 开立帐号

Account account = new Account();

// 在 account 中存 10,000 元

account.setBalance(10000);

// 检查 account 中的存款

System.out.println("帐户原始金额 : " + account.getBalance() + " 元");

// 小明, 小华与小英一起对 account 进行提款的动作

s1.start();

//帐户

class Account {

private int balance; // 帐户馀额

public int getBalance() { // 取得帐户馀额

return balance;

public void setBalance(int money) { // 设定帐户馀额

balance = money;

// 提款方法

public void withDraw(Account account, int withdrawMoney) {

String tName = Thread.currentThread().getName(); // tName=提款人

System.out.println(tName + " 开始提款 ... ");

boolean withDrawStatus; // 提款状态 说明:false=提款失败, true=提款成功

synchronized(ATM.class) {

int tmpBalabce = account.getBalance(); // 取得最新帐户馀额

//用 for-loop 模拟提款时系统所花的时间

// ... 提款进行中 ...

tmpBalabce = tmpBalabce - withdrawMoney; // 最新帐户馀额 - 欲提款金额 (用来判断是否馀额足够的依据)

if (tmpBalabce 0) { // 判断是否馀额足够

withDrawStatus = false;

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

System.out.println(" 帐户馀额不足!");

} else {

withDrawStatus = true;

account.setBalance(tmpBalabce); // 回存account最後剩馀金额

System.out.println(tName + "的交易单:");

System.out.println("\t欲提款金额:" + withdrawMoney + "元");

System.out.println("\t帐户馀额:" + account.getBalance());

if(withDrawStatus == true){

银行账户代码编写java-图3

System.out.println(tName + " 完成提款 ... ");

System.out.println(tName + " 提款失败 ... ");

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

// 提款类别

class WithDraw extends Thread {

private Account account; // 帐号

private int withdrawMoney; // 欲提款的金额

// tName:执行绪名称, account:Account物件名称, withdrawMoney:欲提款金额

public WithDraw(String tName, Account account, int withdrawMoney) {

setName(tName);

this.account = account;

this.withdrawMoney= withdrawMoney;

public void run() {

// 执行提款动作(account:帐号, withdrawMoney 欲提款金额)

account.withDraw(account, withdrawMoney); // 执行提款动作

用java语言编写一个小型的银行系统代码

private?int?balance?=?0;

private?String?username?=?"A";

private?String?password?=?"B";

public?void?bank()?{

Scanner?scan?=?new?Scanner(System.in);

String?temp;

while?(true)?{

System.out.println("输入账号:");

if?(scan.hasNext())?{

temp?=?scan.next();

if?(temp.equals(username))?{

break;

System.out.println("输入错误");

System.out.println("输入密码:");

if?(temp.equals(password))?{

System.out.println("登录成功");

System.out.println("输入操作:");

switch?(temp)?{

case?"存款":

int?x?=?0;

System.out.println("输入存款金额:");

if?(scan.hasNextInt())?{

x?=?scan.nextInt();

scan.next();

balance?+=?x;

case?"取款":

int?y?=?0;

System.out.println("输入取款金额:");

y?=?scan.nextInt();

if?(balance?y)?{

System.out.println("余额不足");

continue;

balance?-=?y;

case?"余额":

System.out.println("余额:"?+?balance);

case?"终止":

System.exit(0);

default:

System.out.println("未知操作");

使用JAVA编写一个简单的银行存取款程序

package com.lw.thread;

/*

银行账户类Account(不能透支),

*/

public class Account {

private String id;

private int password;

private String name;

private double balence;

public String getId() {

return id;

public void setId(String id) {

this.id = id;

public int getPassword() {

return password;

public void setPassword(int password) {

this.password = password;

public String getName() {

return name;

public void setName(String name) {

this.name = name;

public double getBalence() {

return balence;

public void setBalence(double balence) {

this.balence = balence;

public Account() {

this.id = "1111111111111111";

this.name = "钱三多";

public Account(String id, int password, String name, double balence) {

* 查询余额

public static double selectMoney(Account account) {

return account.getBalence();

* 存钱

public static String setMoney(Account account, double balence) {

if (balence 0) {

return "存钱失败,请正确放入!";

double d = balence + account.getBalence();

account.setBalence(d);

return "您存入了" + balence + "元,现账户余额为+" + d;

* 取钱

public static String getMoney(Account account, double balence) {

double d = account.getBalence();

if (balence d) {

return "您的余额不足!";

account.setBalence(d - balence);

return "您取出了" + balence + "元,现账户余额为+" + account.getBalence();

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