C# Bitwise Operator With Ints

Question

What does this expression actually mean??

Note - the x and y vars are just sample values.

int x = 3; 
int y = 1; 

if ((x & y) !=0)

Answer 1

if ((x & y) != 0)

This would typically be used to determine whether the value x has a specific bit-flag (y) set. The AND operator returns an integer with only those bits set that are set in both operands.