java语言程序设计 第十一章 11.3

程序小白，希望和大家多交流，共同学习
简单写了一个运行GUI
等学到第14章的JavaFX后会陆续写点好看的

//主类

import java.util.Scanner;

public class CreatAccount
{
    public static AccoutGUI gui = new AccoutGUI();

    public static void main(String [] args)
    {
        start();
    }

    public static void start()
    {
        CheckingAccount checkingaccount = null;
        SavingAccount savingaccount = null;

        gui.accountHead();
        System.out.print("输入你的选择：");
        int chooseAccount = succInput(1, 2);
        if (chooseAccount == 1)
        {
            checkingaccount= creatCheckingAccount();
        }
        else if (chooseAccount == 2)
        {
            savingaccount = creatSavingAccount();
        }

        gui.chooseList();
        System.out.print("输入你的选择（0-3）：");
        int choose = succInput(0, 3);
        while (choose != 0)
        {
            if (chooseAccount == 1)
            {
                judgeChoose(choose, checkingaccount);
            }
            else if (chooseAccount == 2)
            {
                judgeChoose(choose, savingaccount);
            }
            System.out.print("输入你的选择（0 - 3）：");
            choose = succInput(0, 3);
        }

    }

    public static int succInput(int start, int end)
    {
        Scanner input = new Scanner(System.in);
        int choose = input.nextInt();
        while ((choose < start) || (choose > end))
        {
            System.out.print("无效输入，请重新输入： ");
            choose = input.nextInt();
        }

        return choose;
    }

    public static CheckingAccount creatCheckingAccount()
    {
        Scanner input = new Scanner(System.in);
        System.out.print("输入 Id: ");
        int id = input.nextInt();
        return new CheckingAccount(id, 0.0);
    }

    public static SavingAccount creatSavingAccount()
    {
        Scanner input = new Scanner(System.in);
        System.out.print("输入 Id: ");
        int id = input.nextInt();
        return new SavingAccount(id, 0.0);
    }

    public static void judgeChoose(int choose, CheckingAccount checkingAccount)
    {
        System.out.println("**********");
        switch (choose)
        {
        case 0:
            break;
        case 1:
            System.out.println(gui.operation("存款"));
            checkingAccount.deposit(enterMoney());
            break;
        case 2:
            System.out.println(gui.operation("取款"));
            checkingAccount.withdraw(enterMoney());
            break;
        case 3:
            System.out.println(gui.operation("显示用户信息"));
            System.out.println(checkingAccount.toString());
            break;
        }
    }

    public static void judgeChoose(int choose, SavingAccount savingAccount)
    {
        System.out.println("**********");
        switch (choose)
        {
        case 0:
            break;
        case 1:
            System.out.println(gui.operation("存款"));
            double money = enterMoney();
            savingAccount.deposit(money);
            break;
        case 2:
            System.out.println(gui.operation("取款"));
            money = enterMoney();
            savingAccount.withdraw(money);
            break;
        case 3:
            System.out.println(gui.operation("显示用户信息"));
            System.out.println(savingAccount.toString());
            break;
        }
    }

    public static double enterMoney()
    {
        Scanner input = new Scanner(System.in);
        System.out.print("输入钱:");
        double money = input.nextDouble();
        while (money <= 0)
        {
            System.out.print("无效输入，重新输入： ");
            money = input.nextDouble();
        }

        return money;
    }
}

//Account父类

import java.util.Date;

public class Account
{
    private int id;
    private double balance;
    private double annualInterestRate;
    private Date dateCreated;

    public Account()
    {
        dateCreated = new Date();
    }

    public Account(int newId, double newBalance)
    {
        id = newId;
        balance = newBalance;
        dateCreated = new Date();
    }

    public void setId(int newId)
    {
        id = newId;
    }

    public int getId()
    {
        return id;
    }

    public void setBalance(double newBalance)
    {
        balance = newBalance;
    }

    public double getBalance()
    {
        return balance;
    }

    public String getDateCreated()
    {
        return dateCreated.toString();
    }

    public void setAnnualInterestRate(double newAnnualInterestRate)
    {
        annualInterestRate = newAnnualInterestRate;
    }

    public double getAnnualInterestRate()
    {
        return annualInterestRate;
    }

    public double getMonthlyIbterestRate()
    {
        return annualInterestRate / 12;
    }

    public void withdraw(double money)
    {
        balance -= money;
    }

    public void deposit(double money)
    {
        balance += money;
    }
}

// CheckingAccount继承类

public class  CheckingAccount extends Account
{
    public static final double OVERDRAFTLIMIT = 600;

    public CheckingAccount()
    {
    }

    public CheckingAccount(int id, double balance)
    {
        super(id, balance);
    }

    public void withdraw(double money)
    {
        double balance = getBalance();
        if (balance - money < 0)
        {
            if (money - balance < OVERDRAFTLIMIT)
            {
                setBalance(balance - money);
            }
            else
                System.out.println("Exceed the overdraft limit after spending");
        }
        else
            setBalance(balance - money);
    }

    public String toString()
    {
        return "Checking account: " + "\nId: " + getId() + "\nBalance: " + getBalance() + 
            "\nDateCreated: " + getDateCreated();
    }
}

//SavingAccount继承类

public class SavingAccount extends Account
{
    public SavingAccount()
    {
    }

    public SavingAccount(int id, double balance)
    {
        super(id, balance);
    }

    public void withdraw(double money)
    {
        if (getBalance() - money < 0)
        {
            System.out.println("Saving account overdraft is not allowed");
        }
        else
            setBalance(getBalance() - money);
    }

    public String toString()
    {
        return "Saving account: " + "\nId: " + getId() + "\nBalance: " + getBalance() + 
            "\nDateCreated: " + getDateCreated();
    }
}

//运行页面辅助类

public class AccoutGUI
{
    public void accountHead()
    {
        System.out.println("\t\tAccount");
        System.out.println("1.创建 checking account");
        System.out.println("2.创建 Saving account");
    }

    public void chooseList()
    {
        System.out.println("1.存钱");
        System.out.println("2.取款");
        System.out.println("3.显示用户信息");
        System.out.println("0.退出");
    }

    public String operation(String operate)
    {
        return ("正在进行 " + operate + " ……");
    }
}