What is the difference between int and int32?

There is no difference between int and int32. System. Int is an alias name for System.Int32 which is a .Net Class.

In .NET, int and Int32 are essentially the same thing. int is just an alias for System.Int32, which means they both represent a 32-bit signed integer data type.

So, in an interview setting, you can say:

“The difference between int and Int32 is purely nominal. In .NET, int is just an alias for System.Int32, which is a 32-bit signed integer data type. They can be used interchangeably in code without any functional difference. It’s mainly a matter of coding style and preference.”