银行转账p图软件，对公转账截图生成器，java版开发银行模拟器【仅供学习参考】

下载地址：https://www.pan38.com/share.php?code=bRtMK 提取码：8888 【仅供学习参考使用】

BankAccount类 - 核心账户管理模块
功能特点：
封装账户基本信息（账号、户名、余额）
提供存款/取款基础操作
记录完整的交易流水
支持账户信息查询和流水打印
BankSystem类 - 银行系统管理模块
功能特点：
使用HashMap管理所有账户
提供账户创建功能
实现账户间转账逻辑
支持全行账户查询

import java.util.ArrayList;
import java.util.List;

public class BankAccount {
private final String accountNumber;
private String accountName;
private double balance;
private List transactionHistory;

public BankAccount(String number, String name) {
    this.accountNumber = number;
    this.accountName = name;
    this.balance = 0.0;
    this.transactionHistory = new ArrayList<>();
}

public void deposit(double amount) {
    if(amount > 0) {
        balance += amount;
        transactionHistory.add("存款: +" + amount);
    }
}

public boolean withdraw(double amount) {
    if(amount > 0 && balance >= amount) {
        balance -= amount;
        transactionHistory.add("取款: -" + amount);
        return true;
    }
    return false;
}

public String getAccountInfo() {
    return String.format("账号: %s 户名: %s 余额: %.2f", 
           accountNumber, accountName, balance);
}

public void printStatement() {
    System.out.println("\n===== 账户流水 =====");
    System.out.println(getAccountInfo());
    System.out.println("交易记录:");
    for(String record : transactionHistory) {
        System.out.println(record);
    }
}

}

import java.util.HashMap;

public class BankSystem {
private HashMap accounts;

public BankSystem() {
    accounts = new HashMap<>();
}

public void createAccount(String number, String name) {
    if(!accounts.containsKey(number)) {
        accounts.put(number, new BankAccount(number, name));
    }
}

public boolean transfer(String from, String to, double amount) {
    BankAccount src = accounts.get(from);
    BankAccount dst = accounts.get(to);

    if(src != null && dst != null && src.withdraw(amount)) {
        dst.deposit(amount);
        return true;
    }
    return false;
}

public void displayAllAccounts() {
    System.out.println("\n===== 所有账户 =====");
    for(BankAccount account : accounts.values()) {
        System.out.println(account.getAccountInfo());
    }
}

}

java.util.Scanner;

public class MainApp {
public static void main(String[] args) {
BankSystem system = new BankSystem();
Scanner scanner = new Scanner(System.in);

    // 初始化测试数据
    system.createAccount("622202100001", "测试用户1");
    system.createAccount("622202100002", "测试用户2");

    while(true) {
        System.out.println("\n===== 银行模拟系统 =====");
        System.out.println("1. 创建账户");
        System.out.println("2. 账户转账");
        System.out.println("3. 查看所有账户");
        System.out.println("0. 退出");
        System.out.print("请选择操作: ");

        int choice = scanner.nextInt();
        scanner.nextLine();

        switch(choice) {
            case 1:
                System.out.print("输入账号: ");
                String num = scanner.nextLine();
                System.out.print("输入户名: ");
                String name = scanner.nextLine();
                system.createAccount(num, name);
                break;

            case 2:
                System.out.print("输入转出账号: ");
                String from = scanner.nextLine();
                System.out.print("输入转入账号: ");
                String to = scanner.nextLine();
                System.out.print("输入转账金额: ");
                double amount = scanner.nextDouble();
                if(system.transfer(from, to, amount)) {
                    System.out.println("转账成功");
                } else {
                    System.out.println("转账失败");
                }
                break;

            case 3:
                system.displayAllAccounts();
                break;

            case 0:
                System.out.println("感谢使用银行模拟系统");
                scanner.close();
                System.exit(0);

            default:
                System.out.println("无效选择");
        }
    }
}

}