编写一个Java程序,包含类Acount、CheckingAccount、Main,其中Main已经实现,请你编写Acount和CheckingAccount类。 (1)编写一个类Account表示普通账户对象,包含以下成员

Account类的代码如下：

public class Account {
    private String owner; // 账户拥有者
    private double balance; // 账户余额

    // 构造方法
    public Account(String owner, double balance) {
        this.owner = owner;
        this.balance = balance;
    }

    // 存款
    public void deposit(double amount) {
        balance += amount;
    }

    // 取款
    public void withdraw(double amount) throws InsufficientFundsException {
        if (balance < amount) {
            throw new InsufficientFundsException();
        }
        balance -= amount;
    }

    // 获取账户余额
    public double getBalance() {
        return balance;
    }

    // 获取账户拥有者
    public String getOwner() {
        return owner;
    }

    // 设置账户拥有者
    public void setOwner(String owner) {
        this.owner = owner;
    }
}

CheckingAccount类继承自Account类，代表一个支票账户对象，包含以下成员：

- overdraftProtection：透支保护金额

CheckingAccount类的代码如下：

public class CheckingAccount extends Account {
    private double overdraftProtection; // 透支保护金额

    // 构造方法
    public CheckingAccount(String owner, double balance, double overdraftProtection) {
        super(owner, balance);
        this.overdraftProtection = overdraftProtection;
    }

    // 取款
    @Override
    public void withdraw(double amount) throws InsufficientFundsException {
        if (getBalance() + overdraftProtection < amount) {
            throw new InsufficientFundsException();
        }
        if (getBalance() >= amount) {
            super.withdraw(amount);
        } else {
            double overdraft = amount - getBalance();
            super.withdraw(getBalance());
            overdraftProtection -= overdraft;
        }
    }

    // 获取透支保护金额
    public double getOverdraftProtection() {
        return overdraftProtection;
    }

    // 设置透支保护金额
    public void setOverdraftProtection(double overdraftProtection) {
        this.overdraftProtection = overdraftProtection;
    }
}

InsufficientFundsException是一个自定义异常类，表示余额不足的错误，代码如下：

public class InsufficientFundsException extends Exception {
    public InsufficientFundsException() {
        super("Insufficient funds in your account!");
    }
}