CSharp - What is the output: byte, sbyte, short, and ushort?

Question

What is the output of the following code?

using System;
class MainClass
{
   public static void Main(string[] args)
   {
       short x = 1, y = 1;
       short z = x + y;

       Console.WriteLine(x);
       Console.WriteLine(z);
   }
}

Click to view the answer

short z = x + y;          // Compile-time error

Note

The 8- and 16-bit integral types are byte, sbyte, short, and ushort.

These types don't have their own arithmetic operators.

C# implicitly converts them to larger types during the arithmetic expression.

This can cause a compile-time error when assigning the result back to a small integral type:

You can use an explicit cast to fix the compile time error

short z = (short) (x + y);   // OK