Thread: code snippet about leap year

I have this code snippet for a leap year if you input a year like 1800 that is not a leap year but if you input a year 2000 it is a leap year how would I code that I feel pretty humble right now because I should be able to figure it out here's the code snippet I working with

Code:

            if (year % 4 == 0 && year % 100 != 0 && year % 400 == 0)
                Console.Write("\nThere are 28 days in this month!");
            else
                Console.Write("\nThere are 29 days in this month!");

I tried using || or but that doesn't work either

Sorry guys for bothering you with this stupid problem I figured it out myself on the internet its just year % 4 == 0 && year % 100 != 0 || year % 400 == 0
I think that solves it

I thought I had solved the problem but it is turning out to be harder than i thought
if someone knows of a simple way to code this problem I'd like to see it

inputs are just month and year
output how many days are in that month for that given year

there can be either 29 days 28 days 30 days or 31 days and you have to account for leap year
I'll show you some of the code I have but it doesn't do the job just so you guys will have something to work with

Code:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace Chapter8Problem8
{
    class Program
    {
        static void Main()
        {
            int month = 0;
            int year = 0;

            Console.Write("\nEnter month: ", month);
            month = int.Parse(Console.ReadLine());

            Console.Write("\nEnter year: ", year);
            year = int.Parse(Console.ReadLine());


            if (month == 1 || month == 3 || month == 5 || month == 7 || month == 8 || month == 10 || month == 12 && year % 4 == 0 && year % 100 != 0 || year % 400 == 0)
                Console.Write("\nThere are 31 days in this month!");
            else
                Console.Write("\nThere are 28 days in this month!");



            if (month == 4 || month == 6 || month == 9 || month == 11 && year % 4 == 0 && year % 100 != 0 || year % 400 == 0)
                Console.Write("\nThere are 30 days in this month!");
            else
                Console.Write("");


         

            Console.ReadLine();
            
       }



            

     
   }
}

Thanks again Vart you guys are bad ass I made a slight change to your code just slightly I think it works I haven't tested ever possible state but, I think it works here's what you gave me

Code:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace Chapter8Problem8
{
    class Program
    {
        static void Main()
        {
            int month = 0;
            int year = 0;

            Console.Write("\nEnter month: ", month);
            month = int.Parse(Console.ReadLine());

            Console.Write("\nEnter year: ", year);
            year = int.Parse(Console.ReadLine());


            if (month == 2)
            {
                if (year % 4 == 0 && year % 100 != 0 || year % 400 == 0)
                    Console.Write("\nThere are 29 days in this month!");
                else
                    Console.Write("\nThere are 28 days in this month!");
            }


            if (month != 2)
            {
                if (month == 4 || month == 6 || month == 9 || month == 11)
                    Console.Write("\nThere are 30 days in this month!");
                else
                    Console.Write("There are 31 days in this month!");
            }


         

            Console.ReadLine();
            
       }
   }
}