Why the java programmer wear glasses?
He couldn't C#
Why was the computer cold?
It left its Windows open.
#rubbishjokes How many programmers does it take to change a light bulb?
None - it's a hardware problem.
Why was the computer programmer single?
Because he couldn't commit.
Q: How many programmers does it take to screw in a light bulb?
A: None that's a hardware problem.