本关任务:定义账户类SavingAccount,包含账号,存款金额和月利率。
时间: 2023-07-10 13:16:28 浏览: 89
好的,我来回答你的问题之前,先来回答你的任务。
下面是一个简单的 SavingAccount 类的定义,包括账号、存款金额和月利率:
```python
class SavingAccount:
def __init__(self, account_number, balance, monthly_interest_rate):
self.account_number = account_number
self.balance = balance
self.monthly_interest_rate = monthly_interest_rate
```
其中,`__init__` 方法是类的构造函数,用来初始化对象的属性。在这里,我们将账号、存款金额和月利率作为参数传入,并分别保存在对象的 `account_number`、`balance` 和 `monthly_interest_rate` 属性中。这样,我们就可以通过创建 SavingAccount 对象来表示一个账户,并且可以方便地获取和修改账户的信息。
相关问题
java创建银行账户类SavingAccount,用静态成员变量存储年利率,用私有成员变量存储存款余额。提供计算年利息的方法和计算月利息(年利息/12)的方法。在主函数中建立SavingAccount的对象saver,从控制台输入存款额度和年利率,输出年利息和月利息。
以下是Java代码实现:
```
import java.util.Scanner;
public class SavingAccount {
private double balance; // 存款余额
private static double annualInterestRate; // 年利率
public SavingAccount(double balance) {
this.balance = balance;
}
// 设置年利率
public static void setAnnualInterestRate(double rate) {
annualInterestRate = rate;
}
// 计算年利息
public double calculateAnnualInterest() {
return balance * annualInterestRate;
}
// 计算月利息
public double calculateMonthlyInterest() {
return calculateAnnualInterest() / 12;
}
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
System.out.print("请输入存款额度:");
double balance = scanner.nextDouble();
System.out.print("请输入年利率:");
double annualInterestRate = scanner.nextDouble();
SavingAccount saver = new SavingAccount(balance);
SavingAccount.setAnnualInterestRate(annualInterestRate);
double annualInterest = saver.calculateAnnualInterest();
double monthlyInterest = saver.calculateMonthlyInterest();
System.out.println("年利息为:" + annualInterest);
System.out.println("月利息为:" + monthlyInterest);
}
}
```
运行结果:
```
请输入存款额度:10000
请输入年利率:0.05
年利息为:500.0
月利息为:41.666666666666664
```
创建银行账户类SavingAccount,用静态成员变量存储年利率,用私有成员变量存储存款余额。提供计算年利息的方法和计算月利息(年利息/12)的方法。在主函数中建立SavingAccount的对象saver,从控制台输入存款额度和年利率,输出年利息和月利息。保留两位小数
```
#include<iostream>
#include<iomanip>
using namespace std;
class SavingAccount{
private:
static double annualInterestRate;
double balance;
public:
SavingAccount(double b){
balance = b;
}
void calculateAnnualInterest(){
double interest = balance * annualInterestRate;
cout<<fixed<<setprecision(2)<<"Annual interest: "<<interest<<endl;
}
void calculateMonthlyInterest(){
double interest = balance * annualInterestRate / 12;
cout<<fixed<<setprecision(2)<<"Monthly interest: "<<interest<<endl;
}
static void modifyAnnualInterestRate(double rate){
annualInterestRate = rate;
}
};
double SavingAccount::annualInterestRate = 0.0;
int main(){
double balance, rate;
cout<<"Input balance: ";
cin>>balance;
cout<<"Input annual interest rate: ";
cin>>rate;
SavingAccount saver(balance);
SavingAccount::modifyAnnualInterestRate(rate);
saver.calculateAnnualInterest();
saver.calculateMonthlyInterest();
return 0;
}
```
输出样例:
```
Input balance: 1000
Input annual interest rate: 0.05
Annual interest: 50.00
Monthly interest: 4.17
```
阅读全文