Question

How to search if a string that starts with some letter in string array in C#

Answer 1

using System;

namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            string[] array = { "c++", "csharp", "php" };

            bool exit = Array.Exists(array, element => element.StartsWith("c"));
            if (exit)
                Console.WriteLine("Exist"); // Exist
            else
                Console.WriteLine("Not Exist");

            exit = Array.Exists(array, element => element.StartsWith("j"));
            if (exit)
                Console.WriteLine("Exist");
            else
                Console.WriteLine("Not Exist"); // Not Exist
        }
    }
}

/*
run:
  
Exist
Not Exist

*/

70+ SQL courses for beginners and professionals

Answer 2

using System;

namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            string[] array = { "c++", "csharp", "php" };

            foreach (string s in array)
                if (s.Substring(0, 1).ToUpper() == "C")
                    Console.WriteLine(s); 
        }
    }
}

/*
run:
 * 
c++
csharp
 
*/

70+ SQL courses for beginners and professionals