How can I check my byte flag, verifying that a specific bit is at 1 or 0?

Question

I use a byte to store some flag like 10101010, and I would like to know how to verify that a specific bit is at 1 or 0.

Answer 1

Traditionally, to check if the lowest bit is set, this will look something like:

int MY_FLAG = 0x0001;
if ((value & MY_FLAG) == MY_FLAG)
    doSomething();