Question

Write a program in Java using a method Discount(), to calculate a single discount or a successive discount. Use overload methods Discount(int), Discount(int,int) and Discount(int,int,int) to calculate single discount and successive discount respectively. Calculate and display the amount to be paid by the customer after getting discounts on the printed price of an article.

Sample Input: Printed price: ₹ 12000
Successive discounts = 10%, 8%
                                  = ₹ (12,000 − 1200)
                                  = ₹ (10,800 − 864)
Amount to be paid   = ₹ 9936 

Answer 1

import java.util.*;
public class FQ1
{static int price;
static float A1, A2, A3;

void Discount(int d1)
{A1 = price - (price * d1/100); // price - (price * discount %)
System.out.println("\n\nAmount after discount: " + A1);
}

void Discount(int d1, int d2) 
{A1 = price - (price * d1 / 100); // price - (price * discount %)
System.out.println("Amount after Ist discount: " + A1);
A2 = A1 - (A1 * d2 / 100);
System.out.println("Amount after 2nd discount: " + A2);
}

void Discount(int d1, int d2, int d3)
{A1 = price - (price * d1 / 100); // price - (price * discount %)
System.out.println("Amount after 1st discount: " + A1);
A2 = A1 - (A1 * d2 / 100);
System.out.println("Amount after 2nd discount: " + A2);
A3 = A2 - (A2 * d3 / 100);
System.out.println("Amount after 3rd discount: " + A3);
}

public static void main(String pk[])
{Scanner ob = new Scanner(System.in);
FQ1 f = new FQI();
int n; //do not declare price here
System.out.println("Enter the printed price of the article");
price=ob.nextInt();
System.out.println("Enter the number of discounts given");
n = ob.nextInt();
System.out.println("Enter the discount(s)");
switch(n)
{ case 1: f.Discount(ob.nextInt());
break;
case 2: f.Discount(ob.nextInt(),ob.nextInt());
break;
case 3: f.Discount( ob.nextlnt(),ob.nextlnt(),ob.nextlnt()); 
break; 
}
}}