C# String Intern

Description

String Intern retrieves the system's reference to the specified String.

Syntax

String.Intern has the following syntax.


public static string Intern(
  string str
)

Parameters

String.Intern has the following parameters.

str - A string to search for in the intern pool.

Returns

String.Intern method returns The system's reference to str, if it is interned; otherwise, a new reference to a string with the value of str.

Example

Sample for String.Intern(String)


/*ww w.  j ava  2s.c om*/
using System;
using System.Text;

class Sample {
    public static void Main() {
        String s1 = "MyTest";
        String s2 = new StringBuilder().Append("My").Append("Test").ToString(); 
        String s3 = String.Intern(s2); 
        Console.WriteLine("s1 == '{0}'", s1);
        Console.WriteLine("s2 == '{0}'", s2);
        Console.WriteLine("s3 == '{0}'", s3);
        Console.WriteLine("Is s2 the same reference as s1?: {0}", (Object)s2==(Object)s1); 
        Console.WriteLine("Is s3 the same reference as s1?: {0}", (Object)s3==(Object)s1);
    }
}

The code above generates the following result.