using System;
public class clsIsNullOrEmpty
{
 
    public void Main()
    {
 
        //****************************************************************************************
        // Example #1: String.IsNullorEmpty(string)
 
        //****************************************************************************************
 
 
        //****************************************************************************************
        // Example #1: String.IsNullorEmpty(string)
        // Returns a Boolean value that indicates if the string is Null or Empty. 
        //****************************************************************************************
 
        Console.WriteLine("Example #1: String.IsNullorEmpty ");
 
        string strIsNullorEmptyExample = "This is a test string";
 
        Console.WriteLine(string.IsNullOrEmpty(strIsNullorEmptyExample)); //Returns False
 
        //write blank line to make output easier to read
        Console.WriteLine();
 
 
 
        //Prevent console from closing before you press enter
        Console.ReadLine();
 
    }
 
 
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
 
nameIsNullOrEmpty CSharp_Syntax
{
    class Program
    {
        static void Main(string[] args)
        {
 
 
            clsIsNullOrEmpty myIsNullOrEmpty = new clsIsNullOrEmpty();
            myIsNullOrEmpty.Main();
 
        }
    }
}