1、设计一个账户类account,包括:(一)成员属性(私有)(1)私有账户标识符id(2)账

户余额balance(3)账户密码password(二)构造方法(1)默认构造方法(2)带参构造方法，初始化账户标识符、账户余额和账户密码(三)成员方法(1)获取账户标识符的方法getAccountId()(2)获取账户余额的方法getBalance()(3)获取账户密码的方法getPassword()(4)设置账户密码的方法setPassword()(5)存款的方法deposit(double money)(6)取款的方法withdraw(double money)，注意取款不能超过账户余额，如果超过则抛出异常。

示例代码：

public class Account {
    private int id;
    private double balance;
    private String password;

    public Account() {
    }

    public Account(int id, double balance, String password) {
        this.id = id;
        this.balance = balance;
        this.password = password;
    }

    public int getAccountId() {
        return id;
    }

    public double getBalance() {
        return balance;
    }

    public String getPassword() {
        return password;
    }

    public void setPassword(String password) {
        this.password = password;
    }

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

    public void withdraw(double money) throws Exception {
        if (balance < money) {
            throw new Exception("余额不足");
        } else {
            balance -= money;
        }
    }
}