14. Nested if

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 using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;


namespace nestedifexample

{

    class Program

    {

        static void Main(string[] args)

        {

            int age;

            Console.Write("Enter Age:");

            age = Convert.ToInt16(Console.ReadLine());

            if (age > 0)

            {

                if (age >= 1 && age <= 12)

                {

                    Console.WriteLine("Child");

                }

                else if (age > 12 && age <= 19)

                {

                    Console.WriteLine("Teenager");

                }

                else if (age > 19 && age <= 50)

                {

                    Console.WriteLine("Young");

                }

                else

                {

                    Console.WriteLine("Oldage");

                }

            }

            else

            {

                Console.WriteLine("Enter Age is Wrong");

            }

            Console.Read();

        }

    }

}

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