Page 182 - CA_Blue( J )_Class9
P. 182

13                 System.out.print("Enter time : ");
                    14                 t=sc.nextDouble();

                    15                System.out.print("Enter 1 for Simple Interest/ 2 for Compound
                               Interest : ");
                    16                 ch=sc.nextInt();

                    17                 switch(ch)
                    18                 {

                    19                   case 1 :   si=(p*r*t)/100.0;
                    20                              System.out.println("Simple Interest : "+si);
                    21                              break;

                    22                   case 2 :   a = p * Math.pow((1 + (r/100.0)),t);

                    23                                   ci = a - p;
                    24                              System.out.println("Compound Interest : "+ci);
                    25                              break;

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

                    28             }
                    29         }

                  You will get the following output:















                   Program 5      Write a menu-driven program to calculate:
                                  a)  Area of a circle
                                  b)   Area of a square
                                  c)  Area of a rectangle
                                  Input any one choice(c for circle / s for square / r for rectangle) and calculate the Area
                                  according to the choice.
                     1  import java.util.*;

                     2  class chapter7_17
                     3      {

                     4          public static void main()

                     5          {



                   180    Touchpad Computer Applications-IX
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