What happen if i put a number into a type that isn't big enough to hold it?

If you put a number into a data type that isn't large enough to hold it, it can lead to overflow or underflow, depending on whether the number exceeds the maximum or minimum value that the type can represent. This overflow typically results in wrapping around to the opposite end of the range, leading to unexpected behavior or incorrect results. For example, in an 8-bit signed integer, adding 1 to 127 would cause it to wrap around to -128. This can lead to bugs and data corruption if not handled properly.