What is the difference between a reference type and value type in c#?

Question

Some guy asked me this question couple of months ago and I couldn\'t explain it in detail. What is the difference between a reference type and a value type in C#?

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Answer 1

Sometimes explanations won't help especially for the beginners. You can imagine value type as data file and reference type as a shortcut to a file.

So if you copy a reference variable you only copy the link/pointer to a real data somewhere in memory. If you copy a value type, you really clone the data in memory.