To set the fourth bit, OR with 00001000 (binary).
To clear the fourth bit, AND with 11110111 (binary).
To toggle the fourth bit, XOR with 00001000 (binary).
Examples:
00110010 OR 00001000 = 00111010
00110010 AND 11110111 = 00110010
00110010 XOR 00001000 = 00111010
