Question

Program in Java code

Write a program with total change amount in pennies as an integer input, and output the change using the fewest coins, one coin type per line. The coin types are Dollars, Quarters, Dimes, Nickels, and Pennies. Use singular and plural coin names as appropriate, like 1 Penny vs. 2 Pennies.

.Ex1: If the input is: 0

the output is:    No change           

Ex2: If the input is:    45  

the output is:   1 Quarter

2 Dimes

Answer 1

import java.util.Scanner;

public class Convert {

        public static void main(String[] args) {
                
                Scanner sc = new Scanner(System.in);
                
                // reading number of pennies
                System.out.print("Enter change amount in pennies : ");
                int amount = sc.nextInt();
                
                int remaining = amount;
                
                // calculating number of dollars
                int dollars = remaining/100;
                remaining = remaining % 100;
                
                // calculating number of quarters
                int quarters = remaining / 25;
                remaining = remaining % 25;
                
                // calculating number of dimes
                int dimes = remaining / 10;
                remaining = remaining % 10;
                
                // calculating number of nickels
                int nickels = remaining / 5;
                remaining = remaining % 5;
                
                // calculating number of pennies
                int pennies = remaining ;
                
                // if currency is greater than zero then print that currency 
                // in singular and plural
                if(dollars > 0) {
                        System.out.println(dollars==1?"1 Dollar":dollars+" Dollars");
                }
                if(quarters > 0) {
                        System.out.println(quarters==1?"1 Quarter":quarters+" Quarters");
                }
                if(dimes > 0) {
                        System.out.println(dimes==1?"1 Dime":dimes+" Dimes");
                }
                if(nickels > 0) {
                        System.out.println(nickels==1?"1 Nickel":nickels+" Nickels");
                }
                if(pennies > 0) {
                        System.out.println(pennies==1?"1 Penny":pennies+" Pennies");
                }
                
                // checking if all are zeros and prints no change
                if(dollars ==0 && quarters ==0&& dimes==0&&nickels==0&&pennies==0) {
                        System.out.println("No change");
                }
                
                sc.close();

        }

}

Code

Output

Testcase #1

Testcase #2

Testcase #3