string-interning

The following is an extract from MSDN: The common language runtime conserves string storage by maintaining a table, called the intern pool, that contains a single reference to each unique literal string declared or created programmatically in your program. Consequently, an instance of a literal string with a particular value only exists once in the system. For example, if you assign the same literal string to several variables, the runtime retrieves the same reference to the literal string from the intern pool and assigns it to each variable. The Intern method uses the intern pool to search

I am looking to a debugging tool that can list the strings that have been internalized? Ideally, I would like to put a mark and have a list of the strings that been added after that mark. Thanks in advance. Perhaps the easiest way is to use a bytecode viewer. Any String that is interned will be present in the constant_pool of the class file the String literal is included in. For instance, on a recent class file from another StackOverflow question I answered, I had the following String literal in my code: "sun.awt.noerasebackground" . This shows up in the constant pool as a 'String_info' type.

I am trying to understand string interning and why is doesn't seem to work in my example. The point of the example is to show Example 1 uses less (a lot less memory) as it should only have 10 strings in memory. However, in the code below both example use roughly the same amount of memory (virtual size and working set). Please advice why example 1 isn't using a lot less memory? Thanks Example 1: IList<string> list = new List<string>(10000); for (int i = 0; i < 10000; i++) { for (int k = 0; k < 10; k++) { list.Add(string.Intern(k.ToString())); } } Console.WriteLine("intern Done"); Console

This question already has an answer here: String pool vs Constant pool 2 answers So, I realize the questions I'm about to ask relate to a topic that has been beaten to death time and time again, however, even after reading all of the answers and documentation I could find, I'm still kind of confused about string interning. Perhaps it's due to my lack of understanding for the JVM; perhaps it's due to the changes introduced in Java 7 depreciating many of the aforementioned answers and documentation. Either way, I'm stuck, and I'm hoping someone can help me understand the concept a bit more

I was having a conversation about strings and various languages a while back, and the topic of string interning came up. Apparently Java and the .NET framework do this automatically with all strings, as well as several scripting languages. Theoretically, it saves memory because you don't end up with multiple copies of the same string, and it saves time because string equality comparisons are a simple pointer comparison instead of an O(N) run through each character of the string. But the more I think about it, the more skeptical I grow of the concept's benefits. It seems to me that the

I dont understand : MSDN says http://msdn.microsoft.com/en-us/library/system.string.intern.aspx Consequently, an instance of a literal string with a particular value only exists once in the system. For example, if you assign the same literal string to several variables, the runtime retrieves the same reference to the literal string from the intern pool and assigns it to each variable. Does this behavior is the Default (without intern ) ? or by using Intern method ? If its default , so why will I want to use intern? (the instance will be once already...) ? If its NOT default : if I write 1000