C#: Demonstrate Compare method is equivalent to using ToUpper or ToLower when comparing strings

C# Sharp String: Exercise-26 with Solution

Write a C# Sharp program to demonstrate that the Compare(String, String, Boolean) method is equivalent to using ToUpper or ToLower when comparing strings.

Sample Solution:-

C# Sharp Code:

using System;

class Example26
{
   static void Main()
   {
      // Create upper-case characters from their Unicode code units.
      String stringUpper = "\x0051\x0052\x0053";

      // Create lower-case characters from their Unicode code units.
      String stringLower = "\x0071\x0072\x0073";

      // Display the strings.
      Console.WriteLine("Comparing '{0}' and '{1}':", 
                        stringUpper, stringLower);

      // Compare the uppercased strings; the result is true.
      // Check if the uppercased versions of both strings are equal.
      Console.WriteLine("The Strings are equal when capitalized? {0}",
                        String.Compare(stringUpper.ToUpper(), stringLower.ToUpper()) == 0 
                                       ? "true" : "false");

      // The previous method call is equivalent to this Compare method, which ignores case.
      // Compare the strings while ignoring the case.
      Console.WriteLine("The Strings are equal when case is ignored? {0}",
                        String.Compare(stringUpper, stringLower, true) == 0
                                       ? "true" : "false" );
   }
}
 

Sample Output:

Comparing 'QRS' and 'qrs':                                                                                    
The Strings are equal when capitalized? true                                                                  
The Strings are equal when case is ignored? true  

Flowchart :

C# Sharp Code Editor:

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