C# and the StringBuilder class

This morning I was working on a project at work. It’s a Web Application using the ASP .NET 2.0 framework and C# as a code behind language. My friend Ioannis came over to see what was I doing and when he saw I was appending some strings together he asked me this question: “are you using a StringBuilder to use those strings?“. And I replied with this answer: “no, I am not“. This kind of stupid dialog came over because last week we were discussing about using StringBuilders instead of the default String class operators to append strings each other in Java. It seemed using the StringBuilder class resulted in an overall performance gain. It was then when I asked: “don’t tell me this happens with C#, too?“. And he answered: “yes, it does!“.

So, what’s the matter with StringBuilders in C#?

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