复利计算

 1 import java.util.Scanner;
 2 
 3 public class Fulijisuan {
 4 
 5     public static void main(String[] args) {
 6         // TODO Auto-generated method stub
 7         double N=1;
 8         Scanner scanner=new Scanner(System.in);
 9         System.out.print("若要计算本金请按3否则按0:");
10         int num=scanner.nextInt();
11         if(num==3){
12             double money;
13             float year=30;
14             float total=3000000;
15             double a=0.30;
16             for(int j=1;j<=year;j++){
17                 N=(1+a)*N;
18             }
19             money=total/N;
20             System.out.println("需要本金："+money);
21         }
22         System.out.print("请选择复利计算(1)or单利计算(2):");
23         int choose=scanner.nextInt();
24         
25         System.out.print("请输入本金：");
26         float P=scanner.nextInt();
27         System.out.print("请输入利率：");
28         float i=scanner.nextFloat();
29         System.out.print("存入时间：");
30         float n=scanner.nextFloat();
31         
32         if(choose==1){
33             fuli(N, P, i, n);
34         }
35         else if(choose==2){
36             danli(P, i,n);
37         }
38         
39     }
40 
41     private static void danli(double P, double i,double n) {
42         double G; 
43         
44         G=P+P*i*n;
45         System.out.print("单利终值为："+G);
46     }
47 
48     private static void fuli(double N, double P, double i, double n) {
49         for(int j=1;j<=n;j++){
50             
51             N=(1+i)*N;
52         }
53         double F;
54         F=P*N;
55         System.out.print("复利终值为："+F);
56     }
57 
58 
59 }