Question

How to check if array is empty in C#

Answer 1

using System;

namespace ConsoleApplication_C_Sharp
{
    class Program
    {
        static void Main(string[] args)
        {
            string[] array = { "c", "c++", "c#", "java" };

            if (array == null || array.Length == 0)
                Console.WriteLine("array is empty");
            else
                Console.WriteLine("array is not empty");
        }
    }
}


/*
run:
 
array is not empty
 
*/

 

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Answer 2

using System;

namespace ConsoleApplication_C_Sharp
{
    class Program
    {
        static void Main(string[] args)
        {
            string[] array = null;

            if (array == null || array.Length == 0)
                Console.WriteLine("array is empty");
            else
                Console.WriteLine("array is not empty");
        }
    }
}


/*
run:
 
array is empty
 
*/

 

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Answer 3

using System;

namespace ConsoleApplication_C_Sharp
{
    class Program
    {
        static void Main(string[] args)
        {
            string[] array = null;

            if (array == null) 
                Console.WriteLine("array is not initialized");
            else if (array.Length == 0) 
                     Console.WriteLine("array is empty");
        }
    }
}


/*
run:
 
array is not initialized
 
*/

 

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Answer 4

using System;

namespace ConsoleApplication_C_Sharp
{
    class Program
    {
        static void Main(string[] args)
        {
            string[] array = new string[0];

            if (array == null) 
                Console.WriteLine("array is not initialized");
            else if (array.Length == 0) 
                     Console.WriteLine("array is empty");
        }
    }
}


/*
run:
 
array is empty
 
*/

 

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