Can you explain how this program works? the thing i am confused about is where are the integers being stored in order to appear in the top part of the program where public static boolean is. I just need an explanation on what's happening here.

Load defaul 4 1 import java.util.Scanner; 2 3 4 public class LabProgram { 5 public static boolean isLeap(int year) { 6 7 if(year % 4 == 0 && year % 100 != 0) { 8 return true; 9 } 0 else if(year % 400 == 0) { 1 return true; } 3 return false; } 5 6 -7 public static void main(String[] args) { 8 Scanner scanner = new Scanner(System.in); 9 int input Year; 1 inputYear = scanner.nextInt(); -2 3 if (isLeap(input Year)) { -4 System.out.println(inputYear + leap year"); 5 } -6 -7 else { System.out.println(inputYear + not a leap year"); } } 1 } -2 Min N000 Nm 00 OM 00 OHN