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What is the difference between String and StringBuilder?

Posted By :Vinodh     Posted Date :September 19, 2011    Points :40   Category :.NET Framework 
When we use string object ot concatenate two strings , the first string is concatenate to the other string by creating a new copy in the memory as string object , and the old string is deleted , this process is very long so we say strings are immutable.SO we use string builder object where append method is used.
Stringbuilder is faster than string operation as copy is done at the same loication

You can also find related Interview Question to What is the difference between String and StringBuilder?  below: 

difference between string and StringBuilder?

  
String is immutable & StringBuilder is mutable.
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What is the difference between string and stringbuilder?

  
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What is difference between System.String and System.StringBuilder classes?

  
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What is Difference Between ToString() vs Convert.ToString() vs (string) cast

  
There is a simple but important difference between these three.

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