Nested if else statement in Java

//https://csprograms4u.blogspot.com/

//Chapter 2

//Program 3

//Nested if else in Java

import java.util.Scanner;

public class nestedifelse

{

    public static void main(String args[])

    {

        Scanner sc=new Scanner(System.in);

        int n;

        System.out.println("Enter Year");

        n=sc.nextInt();

        if(n%100==0)

        {

            if(n%400==0)

            {

                System.out.println("leap year");

            }

            else

            {

                System.out.println("Not a leap year");

            }

        }

        else if(n%4==0)

        {

            System.out.println("leap year");

        }

        else

        {

            System.out.println("not a leap year");

        }

    }

}