if statement in public void won't run - if-statement

Question

It maybe a very stupid question, but my public void with if statement doesn't run and I just can't find the answer why. I tried debugging, looking for similar topics in the web, but nothing helped. The funny thing in a video course which I am currently studying where a similar task is the codes runs although there are some differences which aren't relevant.
public class Program
{
static int InputYear;
static int YearDiv2;
static int YearDiv4;
static int YearDiv100;
static int YearDiv400;
string Yes = "Yes";
string No = "No";
string DivBy = "Divisible by ";
string LeapYear = "Leap Year: ";
public static void Main(string[] args)
{
//Section 5 Task
Console.WriteLine("Please enter a year value:");
InputYear = Convert.ToInt32(Console.ReadLine());
YearDiv2 = InputYear % 2;
//Console.WriteLine(YearDiv2);
YearDiv4 = InputYear % 4;
YearDiv100 = InputYear % 100;
YearDiv400 = InputYear % 400;
Console.WriteLine($"Year entered: {InputYear}");
}
public void YearNotOdd()
{
Console.WriteLine("It runs");
if (InputYear == 0)
{
if (YearDiv4 == 0 && YearDiv100 == 0 && YearDiv400 == 0)
{
Console.WriteLine(#"{DivBy} 4: {Yes}");
Console.WriteLine(#"{DivBy} 100: {Yes}");
Console.WriteLine(#"{DivBy} 400: {Yes}");
Console.WriteLine(LeapYear + Yes);
}
else if(YearDiv4 == 0 && YearDiv100 == 0 && YearDiv400 != 0)
{
Console.WriteLine(#"{DivBy} 4: {Yes}");
Console.WriteLine(#"{DivBy} 100: {Yes}");
Console.WriteLine(#"{DivBy} 400: {No}");
Console.WriteLine(LeapYear + No);
}
else
{
Console.WriteLine(#"{DivBy} 4: {No}");
Console.WriteLine(#"{DivBy} 100: {No}");
Console.WriteLine(#"{DivBy} 400: {No}");
Console.WriteLine(LeapYear + No);
}
}
else
{
Console.WriteLine(#"{DivBy} 4: {No}");
Console.WriteLine(#"{DivBy} 100: {No}");
Console.WriteLine(#"{DivBy} 400: {No}");
Console.WriteLine(LeapYear + No);
}
}
}

Answer 1

You'll need to use the method YearNotOdd() somewhere, if you create a new method, then it needs to be called somewhere to be used.
To try it out, you should put the YearNotOdd() in your Main() method.
For example:
public static void Main(string[] args)
{
//Section 5 Task
Console.WriteLine("Please enter a year value:");
InputYear = Convert.ToInt32(Console.ReadLine());
YearDiv2 = InputYear % 2;
//Console.WriteLine(YearDiv2);
YearDiv4 = InputYear % 4;
YearDiv100 = InputYear % 100;
YearDiv400 = InputYear % 400;
Console.WriteLine($"Year entered: {InputYear}");
YearNotOdd(); //place it here
}
You might need to add static to the YearNotOdd() for this.