package com.jerry.experiment1;
/**
 * @author jerry_jy
 * @create 2022-09-29 10:44
 */
public class Account {
    private int id;
    private double balance;
    private double annualInterestRate;
    public Account() {
    }
    public Account(int id, double balance, double annualInterestRate) {
        this.id = id;
        this.balance = balance;
        this.annualInterestRate = annualInterestRate;
    }
    public int getId() {
        return id;
    }
    public void setId(int id) {
        this.id = id;
    }
    public double getBalance() {
        return balance;
    }
    public void setBalance(double balance) {
        this.balance = balance;
    }
    public double getAnnualInterestRate() {
        return annualInterestRate;
    }
    public void setAnnualInterestRate(double annualInterestRate) {
        this.annualInterestRate = annualInterestRate;
    }
    public void withdraw(double amount) {//取钱
        if (this.getBalance() < amount) {
            System.out.println("余额不足！您的账户余额为：" + this.getBalance());
        } else {
            System.out.println("取款成功！本次取款金额为：" + amount);
            System.out.println("账户余额为：" + (this.getBalance() - amount));
            System.out.println("月利率为：" + this.getAnnualInterestRate());
        }
    }
    public void deposit(double amount) {//存钱
        System.out.println("存款成功！本次存款金额为：" + amount);
        System.out.println("账户余额为：" + (this.getBalance() + amount));
        System.out.println("月利率为：" + this.getAnnualInterestRate());
    }
}
class CheckAccount extends Account {
    double overdraft;
    public double getOverdraft() {
        return overdraft;
    }
    public void setOverdraft(double overdraft) {
        this.overdraft = overdraft;
    }
    public CheckAccount() {
    }
    public CheckAccount(int id, double balance, double annualInterestRate, double overdraft) {
        super(id, balance, annualInterestRate);
        this.overdraft = overdraft;
    }
    public void withdraw(double amount) {//取钱
        if (amount < this.getBalance()) {
            System.out.println("取款成功！本次取款金额为：" + amount);
            System.out.println("您的账户余额为：" + (this.getBalance() - amount));
            double temp = this.getBalance() - amount;
            this.setBalance(temp);
            System.out.println("您的可透支额度：" + this.getOverdraft());
        } else if (amount < (this.getBalance() + this.getOverdraft())) {
            double temp = this.getBalance() + this.overdraft - amount;
            this.setOverdraft(temp);
            this.setBalance(0);
            System.out.println("取款成功！本次取款金额为：" + amount);
            System.out.println("您的账户余额为：" + this.getBalance());
            System.out.println("您的可透支额度：" + this.getOverdraft());
        } else {
            System.out.println("超过可透支额度！您的可透支额度：" + overdraft);
        }
    }
}

package com.jerry.experiment1;
/**
 * @author jerry_jy
 * @create 2022-09-29 17:14
 */
public class AccountTest {
    public static void main(String[] args) {
        Account account = new Account(1122, 20000, 0.045);
        account.withdraw(30000);
        account.withdraw(300);
        account.deposit(2000);
        System.out.println("==========================");
        CheckAccount checkAccount = new CheckAccount(1122, 20000, 0.045, 5000);
        checkAccount.withdraw(5000);
        System.out.println("==================");
        checkAccount.withdraw(18000);
        System.out.println("============================");
        checkAccount.withdraw(3000);
    }
}