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Program 4    To calculate the Simple Interest or Compound Interest depending on the user's choice. The principal
                             amount, rate of interest and time are to be accepted from the user.

                                                             t
                             [SI = prt/100 and CI = A = p(1+r/100)  are the formulas of Simple Interest and Compound Interest]
                 1  import java.util.*;
                 2  class simple_compound_interest
                 3      {

                 4          public static void main()

                 5          {
                 6              Scanner sc=new Scanner(System.in);
                 7              double si,a,r,t,p,ci;

                 8              int ch;
                 9              System.out.print("Enter principal amount : ");

                10              p=sc.nextDouble();
                11              System.out.print("Enter rate : ");

                12              r=sc.nextDouble();
                13              System.out.print("Enter time : ");

                14              t=sc.nextDouble();

                15              System.out.print("Enter 1 for Simple Interest/ 2 for Compound
                    Interest : ");
                16
                17              switch(ch)
                18              {

                19                  case 1 :    si=(p*r*t)/100.0;

                20                              System.out.println("Simple Interest : "+si);
                21                              break;
                22

                23                  case 2 :    a = p * Math.pow((1 + (r/100.0)),t);
                                                ci = a - p;
                24                              System.out.println("Compound Interest : "+ci);

                25                              break;
                26
                27                  default:    System.out.println("Wrong Choice");

                28              }
                29          }

                30      }






                136136  Touchpad Computer Applications-X
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