C#: Compare two strings in different ways produce three different results

Last update on August 25 2025 12:51:24 (UTC/GMT +8 hours)

Write a C# Sharp program to compare two strings in following three different ways produce three different results.

a. using linguistic comparison for the en-US culture.
b. using linguistic case-sensitive comparison for the en-US culture.
c. using an ordinal comparison. It illustrates how the three methods of comparison.

Sample Solution:-

C# Sharp Code:

using System;
using System.Globalization;

public class Example28
{
   public static void Main()
   {
      // Declare and initialize two strings for comparison
      string str1 = "sister";
      string str2 = "Sister";

      // Declare a variable to hold the relationship between the strings
      string relation;
      int result;

      // Cultural (linguistic) comparison.
      result = String.Compare(str1, str2, new CultureInfo("en-US"), 
                              CompareOptions.None);
      // Determine the relationship between str1 and str2 based on the comparison result
      if (result > 0)
         relation = "comes after";
      else if (result == 0)
         relation = "is the same as";
      else
         relation = "comes before";

      // Display the relationship between str1 and str2 for cultural comparison
      Console.WriteLine("'{0}' {1} '{2}'.", 
                        str1, relation, str2);

      // Cultural (linguistic) case-insensitive comparison.
      result = String.Compare(str1, str2, new CultureInfo("en-US"), 
                              CompareOptions.IgnoreCase);
      // Determine the relationship between str1 and str2 for case-insensitive comparison
      if (result > 0)
         relation = "comes after";
      else if (result == 0)
         relation = "is the same as";
      else
         relation = "comes before";

      // Display the relationship between str1 and str2 for case-insensitive comparison
      Console.WriteLine("'{0}' {1} '{2}'.", 
                        str1, relation, str2);

       // Culture-insensitive ordinal comparison.
      result = String.CompareOrdinal(str1, str2);
      // Determine the relationship between str1 and str2 for ordinal comparison
      if (result > 0)
         relation = "comes after";
      else if (result == 0)
         relation = "is the same as";
      else
         relation = "comes before";

      // Display the relationship between str1 and str2 for ordinal comparison
      Console.WriteLine("'{0}' {1} '{2}'.", 
                        str1, relation, str2);
   }
}

Sample Output:

'sister' comes before 'Sister'.                                                                               
'sister' is the same as 'Sister'.                                                                             
'sister' comes after 'Sister'.

Flowchart:

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