Question

in java

my code

double price[] = {26.99, 22.99, 13.99, 56.99, 38.99};

// Variable Declaration

Scanner keyIn = new Scanner(System.in);

//Header

System.out.println( "----------------------------------------\n"

+ " Grocery Shop Price Calculator \n"

+ "----------------------------------------\n") ;

System.out.print ("Please enter the quantities for each item in the list? ");

double totalCost = 0;

double fishAmount = 0;

for(int i=0; i<price.length; i++)

{

int items = Integer.parseInt(keyIn.nextLine());

if(i==4)

fishAmount = price[i]*items;

else

totalCost = totalCost + price [i]*items;

}

System.out.print("Do you have the membership(Y/N) ");

String st = keyIn.nextLine();

double off;

if(totalCost<250)

off = totalCost*0.1;

else if(totalCost<500)

off = totalCost*0.2;

else

off = totalCost*0.15;

totalCost = totalCost + fishAmount - off;

long points = 0;

if(st.equalsIgnoreCase("Y"))

{

if(totalCost<500)

points = Math.round(totalCost*2);

else

points = Math.round(totalCost*3);

}

System.out.print("The total price is $"+ totalCost+".");

if(st.equalsIgnoreCase("Y"))

System.out.println("You will receive " + points + " points.");

//close scanner

keyIn.close();

System.out.println ("Thanks for shopping! See you next time!");

}

}

and it is not working second question

this-System.out.print("Do you have the membership(Y/N) ");

just come out first question and stop

what is my problem?

Answer 1

The program is written correctly except:

Line no 51: else if(totalCost>500)   //less than is changed to greater than ( logical error) because the 0.2 discount should be given to greater totalCost ie) greater than 500

Line no 1: //These lines are missing.

import java.util.Scanner;
  public class Main
{
   public static void main(String[] args) {

Output:

The expected output is achieved.

Program:

import java.util.Scanner;
public class Main
{
   public static void main(String[] args) {
double price[] = {26.99, 22.99, 13.99, 56.99, 38.99};

// Variable Declaration

Scanner keyIn = new Scanner(System.in);

//Header

System.out.println( "----------------------------------------\n"

+ " Grocery Shop Price Calculator \n"

+ "----------------------------------------\n") ;

System.out.print ("Please enter the quantities for each item in the list? ");

double totalCost = 0;

double fishAmount = 0;

for(int i=0; i<price.length; i++)

{

int items = Integer.parseInt(keyIn.nextLine());

if(i==4)

fishAmount = price[i]*items;

else

totalCost = totalCost + (price [i]*items);

}

System.out.print("Do you have the membership(Y/N) ");

String st = keyIn.nextLine();

double off;

if(totalCost<250)

off = totalCost*0.1;

else if(totalCost>500) //less than is changed to greater than

off = totalCost*0.2;

else

off = totalCost*0.15;

totalCost = totalCost + fishAmount - off;

long points = 0;

if(st.equalsIgnoreCase("Y"))

{

if(totalCost<500)

points = Math.round(totalCost*2);

else

points = Math.round(totalCost*3);

}

System.out.print("The total price is $"+ totalCost+".");

if(st.equalsIgnoreCase("Y"))

System.out.println("You will receive " + points + " points.");

//close scanner

keyIn.close();

System.out.println ("Thanks for shopping! See you next time!");

}

}