PROGRAM USING SWITCH CASE IN JAVA..

Q1)A mail-order house sells five products whose retail prices are as follows : Product 1 : Rs. 199.90 , Product 2 : Rs. 200.20 , Product 3 : Rs. 63.87 , Product 4 : Rs. 145.50 and Product 5 : Rs. 540.49 . Write an application that reads a series of pairs of numbers as follows:  a) Product number b) Quantity sold your program use a switch statement to determine the retail price for each product. It should calculate and display the total retail value of all products sold

ANSWER:

import java.util.*;

public class product

{

            public static void main(String args[])

            {

                        Scanner scn = new Scanner(System.in);

                        int pNo=0;

                        int qSold=0;

                        double retailAmount=0.0;

                        double totalAmount=0.0;

                        int choice=0;

                        while(true)

                        {

                                    System.out.print("Enter Product Number : ");

                                    pNo=scn.nextInt();

                                    System.out.print("Enter Quantity Sold : ");

                                    qSold=scn.nextInt();

                                    switch(pNo)

                                    {

                                                case 1:

                                                            retailAmount=qSold*199.90;

                                                            break;

                                                case 2:

                                                            retailAmount=qSold*200.20;

                                                            break;

                                                case 3:

                                                            retailAmount=qSold*63.87;

                                                            break;

                                                case 4:

                                                            retailAmount=qSold*145.50;

                                                            break; 

                                                case 5:

                                                            retailAmount=qSold*540.49;

                                                            break;                                     

                                    }

                                    System.out.println("Retail Amount = " + retailAmount + " Rs.");

                                    totalAmount=totalAmount+retailAmount;

                                    System.out.print("Continue (1)Yes/(0)No : ");

                                    choice=scn.nextInt();

                                    if(choice==1)

                                                continue;

                                    else

                                                break;

                        }

                                                           

                        System.out.println("\nTotal Amount = " + totalAmount + " Rs.");               

            }

}