The general rule is that of the time you spend with code, 90% is reading and 10% is writing. This does not mean that 90% of your time is spend reading code. Th

The general rule is that of the time you spend with code, 90% is reading and 10% is writing. This does not mean that 90% of your time is spend reading code. There are other tasks that programmers do during their day. I would say that the 90% number sounds roughly true for me. And probably I read my own code somewhat less than that, but spend more time reading others’ code, either due to code reviews or just to understand things before making changes to existing systems.