Function write underlined - C# Programming Exercise

In this C# exercise, you are asked to write a function that displays the given text centered on the screen (assuming a screen width of 80 characters) and then underlines it by writing several hyphens below that word. The code should look something like this:

WriteUnderlined("Hello!");

The WriteUnderlined function must accept a string parameter (in this case, the text "Hello!") and display it centered on the screen, then underline it by writing hyphens on a new line below the text. This exercise is useful for practicing how to manipulate strings and work with text alignment in the C# console, as well as for understanding how to generate more complex output formats, such as underlining, in the console.

Exercise

Function Write Underlined

Objective

Write a C# function able to write centered on screen the text that is indicated as a parameter (supposing a screen width of 80 characters) and then underline it (writing several hyphens under that word):

WriteUnderlined("Hello!");

Example C# Exercise

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// Importing the System namespace to access basic system functions
using System;

class Program
{
    // Function to write the given text centered on the screen and then underline it
    public static void WriteUnderlined(string text)
    {
        // Define the screen width as 80 characters
        int screenWidth = 80;

// Ensure the text is not longer than the screen width, 
        // if it is, truncate it to avoid issues with padding calculation
        if (text.Length > screenWidth)
        {
            text = text.Substring(0, screenWidth);
        }

// Calculate the padding required on the left side to center the text
        int padding = Math.Max(0, (screenWidth - text.Length) / 2);

// Write the text with the calculated padding before it, effectively centering it
        Console.WriteLine(new string(' ', padding) + text);

// After the text, print a line of hyphens, matching the length of the text
        // The number of hyphens is equal to the length of the text
        Console.WriteLine(new string(' ', padding) + new string('-', text.Length));
    }

// Main method to call the WriteUnderlined function and display the result
    public static void Main()
    {
        // Call the WriteUnderlined function with the text "Hello!"
        // This will print the text centered on a screen of 80 characters width, and underline it
        WriteUnderlined("Hello!");
    }
}

// Importing the System namespace to access basic system functions
using System;

class Program
{
    // Function to write the given text centered on the screen and then underline it
    public static void WriteUnderlined(string text)
    {
        // Define the screen width as 80 characters
        int screenWidth = 80;

        // Ensure the text is not longer than the screen width, 
        // if it is, truncate it to avoid issues with padding calculation
        if (text.Length > screenWidth)
        {
            text = text.Substring(0, screenWidth);
        }

        // Calculate the padding required on the left side to center the text
        int padding = Math.Max(0, (screenWidth - text.Length) / 2);

        // Write the text with the calculated padding before it, effectively centering it
        Console.WriteLine(new string(' ', padding) + text);

        // After the text, print a line of hyphens, matching the length of the text
        // The number of hyphens is equal to the length of the text
        Console.WriteLine(new string(' ', padding) + new string('-', text.Length));
    }

    // Main method to call the WriteUnderlined function and display the result
    public static void Main()
    {
        // Call the WriteUnderlined function with the text "Hello!"
        // This will print the text centered on a screen of 80 characters width, and underline it
        WriteUnderlined("Hello!");
    }
}

Output

                                     Hello!
                                     ------

Example Code Copied

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Function write underlined - C# Programming Exercise

Category

Functions

Exercise