「java编写模拟银行」java制作银行系统

admin 2022-11-21 13:53:07 121

本篇文章给大家谈谈java编写模拟银行，以及java制作银行系统对应的知识点，希望对各位有所帮助，不要忘了收藏本站喔。

本文目录一览：

1、Java课程设计，模拟银行存取业务，按照这个流程图去做，其实最主要的是求画圈的部分怎么写和它的方法。
2、JAVA编写银行账户操作模拟
3、JAVA编写银行账户程序摸拟银行账户的存\取款操作
4、用java编写模拟网上银行登录及存取款业务

Java课程设计，模拟银行存取业务，按照这个流程图去做，其实最主要的是求画圈的部分怎么写和它的方法。

请点击输入图片描述

package com.greatwall.business.controller;

import java.math.BigDecimal;

import java.util.Scanner;

import java.util.regex.Matcher;

import java.util.regex.Pattern;

/**

* @author xysddjyt

* @since 2020/6/16 15:06

public class BankTest {

public static void main(String[] args) {

Scanner scan = new Scanner(System.in);

// 余额（单位：分）

Long BALANCE = 10000000L;

// 卡号

String card = "001";

// 密码

String password = "123456";

String inputCard = new String();

String inputPassword = new String();

String quit = new String();

while (true) {

System.out.println("\n欢迎来到网上银行办理存取款业务！");

System.out.println("请输入银行卡号和银行卡密码进行登录！");

while (true) {

System.out.print("请输入银行卡号(按q退出): ");

inputCard = scan.nextLine();

quit = inputCard;

if (inputCard.equals("q")) {

break;

}

if (!inputCard.equals(card)) {

System.out.print("您输入银行卡号不正确，请重新输入 ");

continue;

}

break;

}

if (quit.equals("q")) {

continue;

}

while (true) {

System.out.print("请输入银行卡密码(按q退出): ");

inputPassword = scan.nextLine();

quit = inputPassword;

if (inputPassword.equals("q")) {

break;

}

if (!inputPassword.equals(password)) {

System.out.print("您输入银行卡密码不正确，请重新输入 ");

continue;

}

break;

}

if (quit.equals("q")) {

continue;

}

System.out.print("登录成功，当前登录的账户名:" + inputCard);

String type = "4";

while (!type.equals("0")) {

System.out.print("\n您当前的余额为：" + money(BALANCE) + "元");

System.out.print("\n请选择操作类型。（存款：1；取款：2 ；余额：3；退出：0）\n");

type = scan.nextLine();

switch (type) {

case "1": {

System.out.print("请输入您的存款金额(元)：");

String chageNumber = scan.nextLine();

if (!isPositiveInteger(chageNumber)) {

System.out.print("请输入正确的存款金额！");

continue;

}

BALANCE = Long.valueOf(chageNumber) * 100 + BALANCE;

continue;

}

case "2": {

System.out.print("请输入您的取款金额(元)：");

String chageNumber = scan.nextLine();

if (!isPositiveInteger(chageNumber)) {

System.out.print("请输入正确取款金额！");

continue;

}

BALANCE = BALANCE - Long.valueOf(chageNumber) * 100;

continue;

}

case "3": {

System.out.print("您当前的余额为：" + money(BALANCE) + "元\n");

continue;

}

default: {

continue;

}

private static boolean isMatch(String regex, String orginal) {

if (orginal == null || orginal.trim().equals("")) {

return false;

}

Pattern pattern = Pattern.compile(regex);

Matcher isNum = pattern.matcher(orginal);

return isNum.matches();

}

// 判断数据是否为正整数

public static boolean isPositiveInteger(String orginal) {

return isMatch("^\\+{0,1}[1-9]\\d*", orginal);

}

// 分转元，转换为bigDecimal在toString

public static String money(Long money) {

return BigDecimal.valueOf(money).divide(new BigDecimal(100)).toString();

}

JAVA编写银行账户操作模拟

这个很简单，你只是要设计对吧？如果你不实现GUI的话，就可以用字符输入来公职系统，一个main方法，监听着用户输入，1存款、2取款、3查询余额、4显示账号.用户输入什么数字进入到相应的方法。每个方法可以用jdbc直接访问oracle。

但是，个人建议，做个GUI没什么难的，这个BS结构的比较合适。不知道你的jsp+js+css等学的如何，如果可以的话可以用spring+struts+ibitis来做，很简单，估计1天就弄好了。

有什么不懂可以追问

望采纳

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

WithDraw s1 = new WithDraw("小明", account, 5000); // 小明在 account 中提 5000 元

WithDraw s2 = new WithDraw("小华", account, 2000); // 小华在 account 中提 2000 元

WithDraw s3 = new WithDraw("小英", account, 4000); // 小英在 account 中提 4000 元

s1.start();

s2.start();

s3.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

for(double delay=0;delay99999999;delay++) {

// ... 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！");

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

} 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){

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

} else {

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编写模拟网上银行登录及存取款业务

public class Account {

protected String accId;

protected String name;

protected double money;

public Account (String accId,String name){

this(accId,name,0);

}

public Account (String accId,String name,double money){

this.accId = accId;

this.name = name;

this.money = money;

}

public void saveMoney(double money){

if(money = 0){

System.out.println("存款金额必须大于0");

}

this.money += money;

System.out.println("存款成功");

}

public double getMoney(double money){

if(money = 0){

System.out.println("取款金额必须大于0");

return 0;

}

if(this.money = money){

System.out.println("余额不足，无法取款");

return 0;

}

this.money -= money;

System.out.println("取款成功");

return money;

}

public double getBalance(){

return this.money;

}

protected double getOverdraft(){

return 0;

}

// 实现了equals方法，list比较时才能正确

@Override

public boolean equals(Object obj) {

if(obj == null){

return false;

}

if(this == obj){

return true;

}

if(obj instanceof Account){

return this.accId.equals(((Account)obj).accId);

}

return false;

}

@Override

public String toString() {

return "账户=" + accId + ",名字=" + name + ",余额=" + money;

}

public class Bank {

// Account实现了equals方法，list查找时才能正确

private ListAccount usersAccounts;

public Bank() {

usersAccounts = new ArrayListAccount();

}

public void addAccount(Account account) {

if (usersAccounts.contains(account)) {

System.out.println("添加失败，不能添加同样的账户");

return;

}

usersAccounts.add(account);

}

public boolean delAccount(Account account) {

return usersAccounts.remove(account);

}

public boolean delAccount(String accId) {

return delAccount(new Account(accId, null));

}

public boolean existAccount(Account account) {

return usersAccounts.contains(account);

}

public boolean existAccount(String accId) {

return existAccount(new Account(accId, null));

}

public Account getAccount(String accId){

return usersAccounts.get(usersAccounts.indexOf(new Account(accId, null)));

}

public double getAllMoney() {

// 不考虑是否溢出，只是把所有用户余额相加

double result = 0;

for (Account account : usersAccounts) {

result += account.getBalance();

}

return result;

}

public double getAllOverdraft() {

// 不考虑是否溢出

double result = 0;

for (Account account : usersAccounts) {

result += account.getOverdraft();

}

return result;

}

public int getAccountNum() {

return usersAccounts.size();

}

public int getCreditAccountNum() {

int num = 0;

for (Account account : usersAccounts) {

// instanceof 性能没有简单的方法快。

if (account instanceof CreditAccount) {

num++;

}

return num;

}

public int getSavingAccountNum() {

int num = 0;

for (Account account : usersAccounts) {

if (account instanceof SavingAccount) {

num++;

}

return num;

}

public ListAccount getAllAccount() {

return usersAccounts;

}

public class CreditAccount extends Account{

private double overdraft;

public CreditAccount(String accId,String name){

super(accId, name);

this.overdraft = 1000;

}

public CreditAccount(String accId,String name,double money){

this(accId, name,money,1000);

}

public CreditAccount(String accId,String name,double money,double overdraft){

super(accId, name,money);

this.overdraft = overdraft;

}

@Override

public double getMoney(double money) {

if(money = 0){

System.out.println("取款金额必须大于0");

return 0;

}

if(this.money + overdraft = money){

System.out.println("余额不足，无法取款");

return 0;

}

this.money -= money;

System.out.println("取款成功");

return money;

}

@Override

public double getOverdraft(){

return overdraft;

}

@Override

public String toString() {

return "账户=" + accId + ",名字=" + name + ",余额=" + money + ",透支=" + overdraft;

}

public class SavingAccount extends Account {

public SavingAccount(String accId, String name) {

super(accId, name);

}

public SavingAccount(String accId, String name, double money) {

super(accId, name, money);

}

@Override

public double getMoney(double money) {

return super.getMoney(money);

}

@Override

public double getOverdraft() {

return super.getOverdraft();

}

public class Test {

private static Bank bank = new Bank();

public static void main(String[] args) {

Test.genAccount();

// 开户

Account a1 = new CreditAccount("1", "1", 200, 2000);

Account a2 = new SavingAccount("2", "2", 300);

Account a3 = new SavingAccount("3", "3", 400);

Account a4 = new CreditAccount("4", "4", 500, 2000);

Account a5 = new CreditAccount("4", "5", 600, 2000); // 帐号4重

bank.addAccount(a1);

bank.addAccount(a2);

bank.addAccount(a3);

bank.addAccount(a4);

bank.addAccount(a5);

showNowAccount();

// 销户

bank.delAccount("1");

bank.delAccount("2");

showNowAccount();

// 存款

if(bank.existAccount("3")){

Account acc = bank.getAccount("3");

acc.saveMoney(100);

}

showNowAccount();

// 取款

if(bank.existAccount("3")){

Account acc = bank.getAccount("3");