Check Total Occurrence Of A Number In An Array In C#

In this blog, we will create a c# program that takes input from the user and check-in predefine array to check how many times that number occurs in that array.

using System;
using System.Linq;
namespace CheckOccurrenceOfNumberInArray
{
class Program
{
static void Main(string[] args)
{
int[] array = { 1, 20, 15, 23, 15, 14, 26, 188,175,12, 36, 78, 15, 3, 5, 91, 822, 100, 1202, 78, 95, 12, 123, 12, 14, 25, 36, 15, 36, 95, 45, 10, 20, 30, 04, 50, 40, 60, 70, 80, 90, 104 };
Console.WriteLine("Your Array...");
for (int i = 0; i < array.Length; i++)
{
Console.Write(array[i] + " ");
}
Console.WriteLine("\n\n");
Console.Write("Enter number to check occurrence : ");
int number = Convert.ToInt32(Console.ReadLine());
int occurrences = array.Count(x => x == number);
Console.WriteLine("Occurrence of {0} in given array is {1}", number, occurrences);
Console.ReadKey();
}
}
}

Explanation

In this program, first we declare an array of integer types and then print it to show the user.
Then take input from the user.
Check that input with our array using the LINQ count method and pass expression in that method also that element is equal to the given number.

Output 1

C# Program For Check Total Occurrence Of A Number In An Array

Output 2

Output 3