Integer variables totalDay and amount are read from input. Complete purchases$()\text{'}$s recursive case:

If day is odd, call purchases$()$ to compute the next day's amount as the current day's amount minus $18.$

Otherwise, call purchases$()$ to compute the next day's amount as the current day's amount minus $13.$

Ex: If the input is $6310,$ then the output is:

Day: $6,$ amount: $230$

Note: x $\%2!=0$ returns true if x is odd.

import java.util.Scanner;

public class MerchandiseCount $\{$

public static void purchases$($int totalDay, int day, int amount$)\{$

if $($day $==$ totalDay$)\{$

System.out.println$("$Day: $"+$ totalDay $+",$ amount: $"+$ amount$)$;

$\}$

else $\{$

$/*$ Your code goes here $*/$

$\}$

$\}$

public static void main$($String$[]$ args$)\{$

Scanner scnr $=$ new Scanner$($System$.$in$)$;

int totalDay;

int amount;

totalDay $=$ scnr$.$nextInt$()$;

amount $=$ scnr$.$nextInt$()$;

purchases$($totalDay$,1,$ amount$)$;

$\}$

$\}$