Differentiate between the int and Int32 datatype, or String and string (lowercase)

Int32 is the System.Int32 class, while int is an alias for System.Int32.

The same applies for String (uppercase S) which is System.String, while string (lowercase S) is an alias for System.String.

So basically int is the same thing as Int32, and string is the same thing as String. It's down to user's preference which one to use but most prefer to use int and string as they are easier to type and more familiar among C++

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