Question

用java编写程序:求银行本息的!题目如下:

存期有一年,两年,三年,五年
年利率分别为2.25 2.7 3.24 3.6
现存入银行银行10000元,到期取款,银行应支付的本息分别为多少.
(利息 =本金*年利率*存期
本息=本金+利息)

Answer 1

简单些了个，如果没理解错的话，应该可以满足要求：

public class Benxi{

private double benxi;//本息
private double lilu;//年利率

//计算本息
private double resBenxi(double money,int year){
benxi=money+money*getLilu(year)*year;
return benxi;
}

//选择利率
private double getLilu(int year){
switch(year){
case 1:
lilu=2.25/100;
break;
case 2:
lilu=2.7/100;
break;
case 3:
lilu=3.24/100;
break;
case 5:
lilu=3.6/100;
break;
}
return lilu;
}

public static void main(String[] args){
Benxi bx=new Benxi();
System.out.println("10000元存一年的本息为:"+bx.resBenxi(10000,1));
System.out.println("10000元存两年的本息为:"+bx.resBenxi(10000,2));
System.out.println("10000元存三年的本息为:"+bx.resBenxi(10000,3));
System.out.println("10000元存五年的本息为:"+bx.resBenxi(10000,5));

}
}

Answer 2

import java.util.Scanner;

public class Bank{

public static void main(String args[]){

double increase[]={0.0225,0.027,0.0324,0,0.036};
double money, interest;
int years;
Scanner scan=new Scanner(System.in);
System.out.print("请输入要存入的金额:");
money=scan.nextDouble();
System.out.print("请输入要存的年限:");
years=scan.nextInt();
interest=money*increase[years-1]*years;
money+=interest;
System.out.println("利息:"+interest);
System.out.println("本息:"+money);
}
}

Answer 3

import java.util.Scanner;

/**
 * 
 * @author 命运里的路人
 * @version $Id: Banking.java, v 0.1 2018年6月12日 下午4:06:09 命运里的路人 Exp $
 */
public class Banking {
    /**创建一个静态的数组，将利率存入  */
    private static double[] rates = new double[] { 2.25, 2.7, 3.24, 3.24, 3.6 };

    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        System.out.println("请输入存入金额");
        double price = scan.nextDouble();
        scan.nextLine();
        System.out.println("请输入存入年限");
        int year = scan.nextInt();
        double rate = rates[year - 1];//将利率取出来
        System.out.println("本息和=" + (price * (rate / 100) * year + price));
    }
}