C# String Operators

There are two string operators in C#: Equality and Inequality.

Example

Let us see an example of Equality operator −

 Live Demo

using System; public class Demo {    public static void Main() {       string str1 = "Amit";       string str2 = " ";       Console.WriteLine("Is string1 null or empty? = "+string.IsNullOrEmpty(str1));       Console.WriteLine("Is string2 null or empty? = "+string.IsNullOrEmpty(str2));       Console.WriteLine("Is string1 equal to str2? = "+str1 == str2);    } }

Output

Is string1 null or empty? = False Is string2 null or empty? = False False

Example

Let us now see an example of C# Inequality operator −

 Live Demo

using System; public class Demo {    public static void Main() {       string str1 = "abcdef";       string str2 = "abcdef";       Console.WriteLine("Is string1 null or empty? = "+string.IsNullOrEmpty(str1));       Console.WriteLine("Is string2 null or empty? = "+string.IsNullOrEmpty(str2));       bool val = str1 != str2;       Console.WriteLine("Is str1 not equal to str2? = "+val);    } }

Output

Is string1 null or empty? = False Is string2 null or empty? = False Is str1 not equal to str2? = False