int a = objList.Single();

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

namespace ConsoleApp1
{
    class Programme2
    {
        static void Main(string[] args)
        {
//create an object objStudent of the class Student added the record to the list.
            List objStudent = new List()
            {
                new Student() { Name = "Shubham Rastogi", Gender = "Male",Location="Chennai" },
                new Student() { Name = "Rohini Tyagi", Gender = "Female", Location="Chennai" },
                new Student() { Name = "Praveen Alavala", Gender = "Male",Location="Bangalore" },
                new Student() { Name = "Sateesh Rastogi", Gender = "Male", Location ="Vizag"},
                new Student() { Name = "Madhav Sai", Gender = "Male", Location="Nagpur"}
            };
    //initialize the array objList
                int[] objList = { 1 };
    //objStudent.Single() used to select the student
                var user = objStudent.Single(s => s.Name == "Shubham Rastogi");
                string result = user.Name;
                int val = objList.Single();
                Console.WriteLine("Element from objStudent: {0}", result);
                Console.WriteLine("Element from objList: {0}", val);
                Console.ReadLine();
        }
    }
        class Student
        {
           public string Name { get; set; }
           public string Gender { get; set; }
           public string Location { get; set; }
        }
}