MemoryStream: why convert to byte after readByte

Question

In this example from MS, you\'ll notice that after we read a byte from memory stream, it goes into an int which must then be converted to byte. It stikes me as strange that

Answer 1

I do believe they are converting with that from int to byte in a reallllllly nice way, since ReadByte() returns an int and their byteArray is of type int[].