How Do I Read an Integer from the Command Line in C#?

Command-Line Integer Input in C#

Efficiently handling integer input from users is essential for creating interactive C# console applications. Unlike languages like C , which offer direct integer input methods, C# requires reading input as a string using Console.ReadLine() and then converting it.

This conversion is easily achieved using C#'s built-in Convert.ToInt32() method. This function transforms a string representation of an integer into its numerical equivalent. Combining Console.ReadLine() and Convert.ToInt32() provides a simple and effective solution.

Example:

The following code demonstrates this process:

<code class="language-csharp">Console.WriteLine("Please enter a number:");
int userNumber = Convert.ToInt32(Console.ReadLine()); </code>

Here, Console.ReadLine() captures user input as a string. Convert.ToInt32() then converts this string to an integer, storing the result in the userNumber variable, ready for use in your application's logic.

This method is a standard and reliable way to handle integer input in C# console programs, enabling the creation of dynamic and user-friendly applications.

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