What is the purpose of interlocked class in .NET?

In those situations, interlocked class and its methods are very helpful to manipulate on variables accessible by one or more threads without throwing any error or exception. Methods provided by interlocked class are listed below:

• Increment - Used to increment a variable’s value and store its result. Int32 and Int64 integers are its legal parameters.
• Decrement– Used to decrement a variable’s value and store its result. Int32 and Int64 integers are its legal parameters.
• Exchange– Used to exchange values between variables. This method has seven overloaded versions based on the different types it can accept as parameter.
• CompareExchange - Compares two variables and stores the result of comparison in another variable. This method also has seven overloaded versions.
• Add – Adds two integer variables and updates the result in the first integer variable. It is used to add integers of type Int32 as well as Int64.
• Read – Reads an integer variable. It is used to read an integer of type Int64.

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