How to separate a two digit hexadecimal number into its digits?

Question

Suppose I have a hexadecimal number 4e. How to get 4 and e separately and store it in two separate variables?

Answer 1

if you mean 'how can I get the upper and lower nibbles of a byte into two variables'

 char x = 0x4e;
 int low = x & 0x0f;
 int high = (x & 0xf0) >> 4;