This tutorial will teach us how to convert a string into an upper character string with an example.

Uppercase method in C#

In C#, The .ToUpper() method returns a new string with all the characters converted to uppercase.
Same as .ToLower() is used for lowercase.

Syntax:

somestring.ToUpper()
This method will not change the input string.

.ToUpper()

Numbers and symbols are not changed. This method does not modify the original string, but instead, it creates a new string that contains the uppercase version of the original string.

String Initialization:

 

• Here, we declare a string variable named a and assign it the value “programmer: a machine that turns coffee into code.”.
• The text within the double quotes represents the content of the string.

Console Output:
Console.WriteLine(a);

• This line prints the value of the string variable a to the console.
• When executed, it will display: “programmer: a machine that turns coffee into code.”

Uppercase Transformation:
Console.WriteLine(a.ToUpper());

• The ToUpper() method is called on the string a.
• This method converts all characters in the string to uppercase.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace uppercase
{
    class Program
    {
        static void Main(string[] args)
        {
            string a = "programmer: a machine that turns coffee into code.";
            Console.WriteLine(a);
            Console.WriteLine(a.ToUpper());
            Console.ReadLine();
        }
    }
}

 Output:

The first line displays the original string, and the second line shows the uppercase version of the same string.