C# CompareOrdinal() Method


The CompareOrdinal() method in C# is used to compare two specified String objects by evaluating the numeric values of the corresponding Char objects in each string.

Syntax

public static int CompareOrdinal (string str1, string str2);

Above, str1 and str2 are the strings to compare.

The return value is less than zero, str1 < str2. It is zero, if str1 = str2. Returns greater than zero, if str1 > str2.

Example

 Live Demo

using System;
public class Demo {
   public static void Main(string[] args) {
      string s1 = "Amy";
      string s2 = "Katie";
      string s3 = s2;
      Console.WriteLine("String1 = "+s1);
      Console.WriteLine("String2 = "+s2);
      Console.WriteLine("Are both the strings equal? = "+s1.Equals(s2));
      Console.WriteLine("Are both the strings equal? = "+s2.Equals(s3));
      Console.WriteLine(string.CompareOrdinal(s1, s2));
      Console.WriteLine(string.CompareOrdinal(s2, s3));
   }
}

Output

String1 = Amy
String2 = Katie
Are both the strings equal? = False
Are both the strings equal? = True
-10
0

Example

 Live Demo

using System;
public class Demo {
   public static void Main(string[] args) {
      string s1 = "David";
      string s2 = "David";
      string s3 = s2;
      string s4 = "Tom";
      string s5 = s4;
      Console.WriteLine("String1 = "+s1);
      Console.WriteLine("String2 = "+s2);
      Console.WriteLine("String3 = "+s3);
      Console.WriteLine("String4 = "+s4);
      Console.WriteLine("String5 = "+s5);
      Console.WriteLine("Is s1 and s2 equal? = "+s1.Equals(s2));
      Console.WriteLine("Is s2 and s3 equal? = "+s2.Equals(s3));
      Console.WriteLine("Is s3 and s4 equal? = "+s3.Equals(s4));
      Console.WriteLine("Is s4 and s5 equal? = "+s4.Equals(s5));
      Console.WriteLine(string.CompareOrdinal(s1, s2));
      Console.WriteLine(string.CompareOrdinal(s2, s3));
      Console.WriteLine(string.CompareOrdinal(s3, s4));
      Console.WriteLine(string.CompareOrdinal(s4, s5));
   }
}

Output

String1 = David
String2 = David
String3 = David
String4 = Tom
String5 = Tom
Is s1 and s2 equal? = True
Is s2 and s3 equal? = True
Is s3 and s4 equal? = False
Is s4 and s5 equal? = True
0
0
-16
0
raja
Published on 03-Dec-2019 10:14:35
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