In hex, numbers between zero and nine are represented as they are in decimal, with number ten using the letter A, then 11 as B and so on up to F, which is 15. The 12 is therefore C in hexadecimal.

Binary and hexadecimal numbers systems underpin the way modern computer systems work. Low-level interactions with hexadecimal (hex) and binary are uncommon in the world of Java programming, but ...

Converting numbers to decimal with bc With all that said, you can also use the bc command to turn numbers expressed in hex, octal, or binary to decimal. Just specify the obase (output base) value ...