String Intern()

The C# Intern method is used to retrieve reference to the specified String. It goes to intern pool (memory area) to search for a string equal to the specified String. If such a string exists, its reference in the intern pool is returned. If the string does not exist, a reference to specified String is added to the intern pool, then that reference is returned.

Signature

The signature of intern method is given below:

public static string Intern(String str)

Parameters

str: it is a parameter of type string.

C# String Intern Method Example

using System; 
		
    public class StringExample  
    {  
        public static void Main(string[] args)  
        {  
           string s1 = "Hello C#";
           string s2 = string.Intern(s1);  
           Console.WriteLine(s1);
           Console.WriteLine(s2);
        }  
    }

Output:

Hello C#
Hello C#