Is a += b operator of char implemented same as a = a + b? [duplicate]

Answer 1

The resulting type of += is char in this case and the resulting type of c + (char)1 is int.

The following code prints:

o1 System.Char o2 System.Int32

    public static void Main(string[] args)
    {
        char c = 'a';

        object o1 = c += (char)1;
        object o2 = c + (char)1;

        WriteLine("o1 " + o1.GetType());
        WriteLine("o2 " + o2.GetType());
     }