The Program in C# Program to Check Specified Number is present in a given array is given below:

using System;

namespace CheckNumberInArray
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine("Hello Codeauri Family,enter the number of integers in the array to check if inputted number is present or not!:");
            int n = Convert.ToInt32(Console.ReadLine());

            int[] numbers = new int[n];
            Console.WriteLine("Enter the integers:");
            for (int i = 0; i < n; i++)
            {
                numbers[i] = Convert.ToInt32(Console.ReadLine());
            }

            Console.WriteLine("Well,enter the number here you want to check:");
            int checkNumber = Convert.ToInt32(Console.ReadLine());

            bool isPresent = false;
            for (int i = 0; i < n; i++)
            {
                if (numbers[i] == checkNumber)
                {
                    isPresent = true;
                    break;
                }
            }

            if (isPresent)
            {
                Console.WriteLine(checkNumber + " is present in the array.");
            }
            else
            {
                Console.WriteLine(checkNumber + " is not present in the array.");
            }

            Console.ReadLine();
        }
    }
}

Output:

Hello Codeauri Family,enter the number of integers in the array to check if inputted number is present or not!:3
Enter the integers:
190
908
870
Well,enter the number here you want to check:
7
7 is not present in the array.

Pro-Tips💡

Here are the step by step execution of above program:

1. The using System; statement at the top of the code is a directive that specifies the System namespace should be used in the code. This namespace contains various types and classes, including the Console class which is used to interact with the user through the console.
2. The namespace CheckNumberInArray block defines a namespace for the code. This allows you to organize the code and avoid naming conflicts with other code in your project.
3. The class Program block defines a class in the CheckNumberInArray namespace. The class contains the Main method, which is the entry point for the program.
4. In the Main method, Console.WriteLine is used to prompt the user to enter the number of integers in the array. The Convert.ToInt32 method is then used to convert the user input, which is in the form of a string, to an integer. This integer is stored in the n variable.
5. An array of integers is created with int[] numbers = new int[n];. The n variable determines the size of the array.
6. Another for loop is used to prompt the user to enter the integers in the array. The Convert.ToInt32 method is used to convert the user input to an integer, which is then stored in the numbers array.
7. The user is prompted to enter the number they want to check. The number is converted to an integer and stored in the checkNumber variable.
8. A bool variable isPresent is initialized to false.
9. Another for loop is used to iterate through the numbers array. Within the loop, an if statement checks if the current element of the array is equal to checkNumber. If it is, the isPresent variable is set to true, and the loop is broken using the break statement.
10. After the loop, an if statement checks the value of isPresent. If it is true, a message indicating that the specified number is present in the array is displayed. If it is false, a message indicating that the specified number is not present in the array is displayed.
11. Finally, the Console.ReadLine method is used to pause the program and wait for the user to press enter before the program ends.