Integers numClasses and numSemesters are read from input representing the number of classes per semester and the number of semesters a student takes, respectively. Assign integer totalClasses with the total number of classes the student has taken.

Ex: If the input is $79,$ then the output is:

$63$

import java.util.Scanner;

public class StudentDetails $\{$

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

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

int numClasses;

int numSemesters;

int totalClasses;

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

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

System.out.println$($totalClasses$)$;

$\}$

$\}$

$\backslash$

how do i get the complete code