Java Basic(23)-Compound Interest Program

金額=本金（1+利率）^年
^ =power to

class apples{

public static void main(String args[]){

double amount;

double principal = 10000;

double rate = .01;

for (int day=1;day<=20;day++){

amount=principal*Math.pow(1+rate, day); →這是公式

System.out.println(day + " "+amount);

}

}

}

該Program將運行這樣的：

1 10100.0

2 10201.0

3 10303.010000000002

4 10406.0401

5 10510.100501

6 10615.201506010002

7 10721.353521070101

8 10828.567056280803

9 10936.852726843608

10 11046.221254112046 →一天你能得到多少利息！

11 11156.683466653169

12 11268.250301319698

13 11380.932804332895

14 11494.742132376223

15 11609.689553699987

16 11725.786449236986

17 11843.044313729357

18 11961.47475686665

19 12081.089504435316

20 12201.900399479671